[X2Go-User] X2go Repos

[Robert Dinse]

 X2gp repos appear to be down, at least I am getting connection refused
from a number of different machines.

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[X2Go-User] x2go.org Cert

[Robert Dinse]

 Don't know who is responsible for maintaining x2go.org but the SSL
certificate is expired.

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Re: [X2Go-User] x2goserver on salix

[Robert Dinse]

  On the Salix server these are the only relevant messages I can find
in /var/log, these are in messages:

messages:Mar 21 00:50:06 salix /usr/bin/x2gosessionlimit[28105]: 
x2gosessionlimit has been called
messages:Mar 21 00:50:06 salix /usr/bin/x2golistsessions[28171]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 21 00:50:52 salix /usr/bin/x2gosessionlimit[18519]: 
x2gosessionlimit has been called
messages:Mar 21 00:50:52 salix /usr/bin/x2golistsessions[18607]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 21 16:49:40 salix /usr/bin/x2gosessionlimit[22541]: 
x2gosessionlimit has been called
messages:Mar 21 16:49:40 salix /usr/bin/x2golistsessions[22544]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 21 16:53:29 salix /usr/bin/x2gosessionlimit[12527]: 
x2gosessionlimit has been called
messages:Mar 21 16:53:29 salix /usr/bin/x2golistsessions[12596]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 23 01:01:43 salix /usr/bin/x2gosessionlimit[6431]: 
x2gosessionlimit has been called
messages:Mar 23 01:01:43 salix /usr/bin/x2golistsessions[6434]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 23 02:05:44 salix /usr/bin/x2gosessionlimit[7520]: 
x2gosessionlimit has been called
messages:Mar 23 02:05:44 salix /usr/bin/x2golistsessions[7523]: 
x2golistsessions has been called with options: --all-servers
messages:Mar 23 02:17:18 salix /usr/bin/x2gosessionlimit[31642]: 
x2gosessionlimit has been called
messages:Mar 23 02:17:19 salix /usr/bin/x2golistsessions[31671]: 
x2golistsessions has been called with options: --all-servers


 I start the server with service start x2goserver and it launches and
writes a pid file in /var/run but then dies.  I have the x2goserver log level
set to debug but this is all I get.

 This is on a Salix 12.2 (a derivative of Slackware 12.2).

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Re: [X2Go-User] x2goserver on salix

[Robert Dinse]

 I followed these steps exactly except for the path to the spool
directory for x2goprint (the instructions didn't have the full path for
chown / chmod and in that case I substituted the full path for the directory
name.

 https://www.slackbuilds.org/repository/14.2/network/x2goserver/

 Still, it hangs at connecting.

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Re: [X2Go-User] x2goserver on salix

[Robert Dinse]

 It also fails with x2goserver.  In both cases, after authentication,
it hangs indefinitely.

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On Fri, 22 Mar 2019, Mike Gabriel wrote:


Date: Fri, 22 Mar 2019 11:54:00 +
From: Mike Gabriel 
To: Robert Dinse 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] x2goserver on salix

Hi,

On  Do 21 Mär 2019 09:02:29 CET, Robert Dinse wrote:


My e-mails regarding x2go on salix have not gotten any response to date,
but on the off chance someone is following here is some more data.

I tried to connect using PyHoca-GUI and it says authentication failed
for all servers and users I tried, even ones that the regular x2goclient 
works

fine with.



Depending on the SSH server version and the PyHoca-GUI version (rather the 
python-paramiko version) you might run into problems regarding the host key 
types.


Old version of Paramiko supported only RSA + DSA for a long time. If you 
connect to SSH to a modern server and accept the ecdsa hostkey, it might 
happen that you cannot connect with paramiko anymore.


(I can't remember the exact details, but I have been there before...).

You could try to hack some Python Paramiko script together and check, if you 
can SSH into the X2GoServer using Paramiko, at all:

https://github.com/paramiko/paramiko/tree/master/demos

If that works, then we can start looking into Python X2Go itself.

Mike
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Re: [X2Go-User] x2goserver on salix

[Robert Dinse]

 To be clear I can not connect using either PyHoca or x2goclient.  It
hangs at "connecting", it does not give an error message.  On the server
side the only x2goprocess that runs is x2goagent.  When I first installed,
it would error complaining about some missing perl modules, but now that I
have installed those it does not error, it just sits at connecting forever.

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On Fri, 22 Mar 2019, Mike Gabriel wrote:


Date: Fri, 22 Mar 2019 11:54:00 +
From: Mike Gabriel 
To: Robert Dinse 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] x2goserver on salix

Hi,

On  Do 21 Mär 2019 09:02:29 CET, Robert Dinse wrote:


My e-mails regarding x2go on salix have not gotten any response to date,
but on the off chance someone is following here is some more data.

I tried to connect using PyHoca-GUI and it says authentication failed
for all servers and users I tried, even ones that the regular x2goclient 
works

fine with.



Depending on the SSH server version and the PyHoca-GUI version (rather the 
python-paramiko version) you might run into problems regarding the host key 
types.


Old version of Paramiko supported only RSA + DSA for a long time. If you 
connect to SSH to a modern server and accept the ecdsa hostkey, it might 
happen that you cannot connect with paramiko anymore.


(I can't remember the exact details, but I have been there before...).

You could try to hack some Python Paramiko script together and check, if you 
can SSH into the X2GoServer using Paramiko, at all:

https://github.com/paramiko/paramiko/tree/master/demos

If that works, then we can start looking into Python X2Go itself.

Mike
--

DAS-NETZWERKTEAM
c\o Technik- und Ökologiezentrum Eckernförde
Mike Gabriel, Marienthaler str. 17, 24340 Eckernförde
mobile: +49 (1520) 1976 148
landline: +49 (4354) 8390 139

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de
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[X2Go-User] x2goserver on salix

[Robert Dinse]

 My e-mails regarding x2go on salix have not gotten any response to date,
but on the off chance someone is following here is some more data.

 I tried to connect using PyHoca-GUI and it says authentication failed
for all servers and users I tried, even ones that the regular x2goclient works
fine with.

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[X2Go-User] Salix x2goserver

[Robert Dinse]

 Trying to get x2go server working on a new installation of salix.
Attempting to access salix.eskimo.com just results in x2goclient hanging
forever as show attached "salix.jpg".

 When I first installed x2goserver I got error messages about missing
perl modules, but I've installed all of those, and in fact all perl
modules, now instead of error it just hangs.

 The version is 4.0.1.19-x86_86-lsalix.

 I can ssh in fine and I've configured sshd to allow X-forwarding and
tested by invoking xclock which displays on my local machine fine.

 I am sure there is something stupid I'm overlooking but would
appreciate any suggestions as to how to further troubleshoot this.

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[X2Go-User] x2goserver on salix

[Robert Dinse]

 I have installex x2goserver version 4.0.1.19-x86_64-lsalix on a Salix
14.2 Linux system.  I have enabled X forwarding in sshd and tested by sshd
to the system and running xclock which correctly displays on my lock machine.

 I have installed the mate desktop, it works on the local machine.

 When I try to connect with x2goclient it hangs forever like it's waiting
for the salix machine but it never times out and prints an error dialogue.

 Any suggestions on how to proceed?

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[X2Go-User] Centos6 to Mint

[Robert Dinse]

 I've got a Mint server with the latest everything, that is it is 
completely up to date.  I have a client trying to use x2go from work and

is getting the complaint about SHA1, my system won't accept it, but only
from x2go.  If he connects with straight ssh it connects okay.  Does x2go
enforce a different set of encryption protocols than ssh it's tunneling 
through?


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[X2Go-User] Video across X2go.org

[Robert Dinse]

 I discovered KMPlayer will still play video at pretty much real time.

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Re: [X2Go-User] Server hardware, memory

[Robert Dinse]

 I run about a dozen virtual machines on it, an apache server, mail,
shell servers.  Might be up to around 50 people at a time.  Some graphical,
some just simple ssh sessions.  Web server averages about 8 hits/second.

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On Tue, 19 Mar 2019, Paul van der Vlis wrote:


Date: Tue, 19 Mar 2019 10:33:55 +0100
From: Paul van der Vlis 
To: Robert Dinse 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Server hardware, memory

Hi Robert,

Op 18-03-19 om 10:16 schreef Robert Dinse:


 Build them.  I put together a i7-6850 based system with 128GB of RAM,
5 4gb drives arranged as a boot drive plus a RAID 10 array, for around $3k,
based on an Asus X99A motherboard and with adequate cooling I am able to
clock all six cores at 4.3 Ghz completely stable and almost at room temp.


How many sessions at the same time?

What does "top" say for the load?

Is all of the memory used? Does it swap?

With regards,
Paul





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On Mon, 18 Mar 2019, Paul van der Vlis wrote:


Date: Mon, 18 Mar 2019 09:42:13 +0100
From: Paul van der Vlis 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Server hardware, memory

Hello,

I think about building a X2go server for about 30 sessions at the same
time with XFCE, Firefox, Thunderbird, LibreOffice. Not sure about which
hardware to use.

I would say this:
4GB for the system
4GB for shared binaries like Firefox, Thunderbird, LibreOffice
1GB for a user what I would give 4GB on a fat client.
2GB for a power-user what I would give 8GB on a fat client.

When I count on 5 powerusers and 25 normal users I would say 35GB + 8GB
=43GB.

Not sure about the shared binaries, is this "per processor"?

I think about a server with 2 processors. I think one processor is
enough, but it's not expensive to find a used one with 2 processors and
much memory.

I think about running it virtualized with Qemu/KVM/libvirt what also
will take some memory. I think 48 GB is a correct RAM size.

Please correct me when I am wrong!

I guess it will be possible to run a server with 16GB with 30 sessions,
but it will be "not nice". What is your experience?

With regards,
Paul van der Vlis



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Re: [X2Go-User] Server hardware, memory

[Robert Dinse]

 Build them.  I put together a i7-6850 based system with 128GB of RAM,
5 4gb drives arranged as a boot drive plus a RAID 10 array, for around $3k,
based on an Asus X99A motherboard and with adequate cooling I am able to
clock all six cores at 4.3 Ghz completely stable and almost at room temp.

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On Mon, 18 Mar 2019, Paul van der Vlis wrote:


Date: Mon, 18 Mar 2019 09:42:13 +0100
From: Paul van der Vlis 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Server hardware, memory

Hello,

I think about building a X2go server for about 30 sessions at the same
time with XFCE, Firefox, Thunderbird, LibreOffice. Not sure about which
hardware to use.

I would say this:
4GB for the system
4GB for shared binaries like Firefox, Thunderbird, LibreOffice
1GB for a user what I would give 4GB on a fat client.
2GB for a power-user what I would give 8GB on a fat client.

When I count on 5 powerusers and 25 normal users I would say 35GB + 8GB
=43GB.

Not sure about the shared binaries, is this "per processor"?

I think about a server with 2 processors. I think one processor is
enough, but it's not expensive to find a used one with 2 processors and
much memory.

I think about running it virtualized with Qemu/KVM/libvirt what also
will take some memory. I think 48 GB is a correct RAM size.

Please correct me when I am wrong!

I guess it will be possible to run a server with 16GB with 30 sessions,
but it will be "not nice". What is your experience?

With regards,
Paul van der Vlis



--
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https://www.vandervlis.nl/

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[X2Go-User] x2gocheckport

[Robert Dinse]

 I copied x2gocheckport from a ubuntu system upon which x2go is working
properly and it is identical byte for byte with the one on manjaro throwing
those errors.

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Re: [X2Go-User] Manjaro

[Robert Dinse]

t}" -eq '0' ]]; then # Still looks free, check system 
state. check_system_port "${ss}" "$((port + 6000))" || ret='1' fi return 
"${ret}" } unset X2GO_INTERNAL_SOURCE + unset X2GO_INTERNAL_SOURCE typeset -i 
ret_port="${start}" + typeset -i ret_port=50 typeset -i ret='1' + typeset -i 
ret=1 typeset -i work_port='0' + typeset -i work_port=0 typeset -i 
stop_port='65535' + typeset -i stop_port=65535 [[ "${type}" = 'display' ]] && 
stop_port="$((stop_port - 6000))" + [[ display = \d\i\s\p\l\a\y ]] + 
stop_port=59535 # Find the next free port number. for ((work_port = start; i 1) 
{ printf ("\n%d\n", ports[delim]) } } }') # Filter out any empty or invalid 
values. typeset -i item_i='0' typeset item='' for item in 
"${used_system_ports_work[@]}"; do item_i="${item}" [[ -n "${item}" ]] && [[ 
"${item}" -eq "${item_i}" ]] && [[ "${item}" = "${item_i}" ]] && 
used_system_ports+=( "${item}" ) done return '0' } # Initializes 
used_display_ports array. # Internal use only. # Takes the current hostname as 
a parameter. # Returns 0 on success or non-0 on failure. 
initialize_display_ports() { typeset current_host_name="${1}" typeset 
empty_regex='^[[:space:]]*$' if [[ -z "${current_host_name}" ]] || [[ 
"${current_host_name}" =~ ${empty_regex} ]] || [[ "${current_host_name}" = 
'(none)' ]] || [[ "${current_host_name}" = 'localhost' ]]; then return '1' fi 
typeset -a used_display_ports_work used_display_ports_work=() IFS="${IFS}|" 
read -r -d '' -a 'used_display_ports_work' '/dev/null' && ret='1' if [[ 
"${ret}" -eq '0' ]]; then # If cache is empty, initialize it. if [[ 
"${#used_system_ports[@]}" -eq '0' ]]; then initialize_system_ports "${ss}" || 
ret='4' fi fi if [[ "${ret}" -eq '0' ]]; then typeset -i i='0' for ((i = 0; i 
'/dev/null' | grep -Eqs "(@|)/tmp/.X11-unix/X${port}(|-lock) " >'/dev/null'; 
then ret='1' fi fi if [[ "${ret}" -eq '0' ]]; then # Still looks free, check 
X2Go database. check_x2go_port "${current_host_name}" "$((port + 6000))" || 
ret='1' fi if [[ "${ret}" -eq '0' ]]; then # Still looks free, check system 
state. check_system_port "${ss}" "$((port + 6000))" || ret='1' fi return 
"${ret}" } unset X2GO_INTERNAL_SOURCE + unset X2GO_INTERNAL_SOURCE typeset -i 
ret_port="${start}" + typeset -i ret_port=50 typeset -i ret='1' + typeset -i 
ret=1 typeset -i work_port='0' + typeset -i work_port=0 typeset -i 
stop_port='65535' + typeset -i stop_port=65535 [[ "${type}" = 'display' ]] && 
stop_port="$((stop_port - 6000))" + [[ display = \d\i\s\p\l\a\y ]] + 
stop_port=59535 # Find the next free port number. for ((work_port = start; i 1) 
{ printf ("\n%d\n", ports[delim]) } } }') # Filter out any empty or invalid 
values. typeset -i item_i='0' typeset item='' for item in 
"${used_system_ports_work[@]}"; do item_i="${item}" [[ -n "${item}" ]] && [[ 
"${item}" -eq "${item_i}" ]] && [[ "${item}" = "${item_i}" ]] && 
used_system_ports+=( "${item}" ) done return '0' } # Initializes 
used_display_ports array. # Internal use only. # Takes the current hostname as 
a parameter. # Returns 0 on success or non-0 on failure. 
initialize_display_ports() { typeset current_host_name="${1}" typeset 
empty_regex='^[[:space:]]*$' if [[ -z "${current_host_name}" ]] || [[ 
"${current_host_name}" =~ ${empty_regex} ]] || [[ "${current_host_name}" = 
'(none)' ]] || [[ "${current_host_name}" = 'localhost' ]]; then return '1' fi 
typeset -a used_display_ports_work used_display_ports_work=() IFS="${IFS}|" 
read -r -d '' -a 'used_display_ports_work' '/dev/null' && ret='1' if [[ 
"${ret}" -eq '0' ]]; then # If cache is empty, initialize it. if [[ 
"${#used_system_ports[@]}" -eq '0' ]]; then initialize_system_ports "${ss}" || 
ret='4' fi fi if [[ "${ret}" -eq '0' ]]; then typeset -i i='0' for ((i = 0; i 
'/dev/null' | grep -Eqs "(@|)/tmp/.X11-unix/X${port}(|-lock) " >'/dev/null'; 
then ret='1' fi fi if [[ "${ret}" -eq '0' ]]; then # Still looks free, check 
X2Go database. check_x2go_port "${current_host_name}" "$((port + 6000))" || 
ret='1' fi if [[ "${ret}" -eq '0' ]]; then # Still looks free, check system 
state. check_system_port "${ss}" "$((port + 6000))" || ret='1' fi return 
"${ret}" } unset X2GO_INTERNAL_SOURCE + unset X2GO_INTERNAL_SOURCE typeset -i 
ret_port="${start}" + typeset -i ret_port=50 typeset -i ret='1' + typeset -i 
ret=1 typeset -i work_port='0' + typeset -i work_port=0 typeset -i 
stop_port='65535' + typeset -i stop_port=65535 [[ "${type}" = 'display' ]] && 
stop_port="$((stop_port - 6000))" + [[ display = \d\i\s\p\l\a\y ]] + 
stop_port=59535 # Find the next free port number. for ((work_port = start; i


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On Sun, 17 Mar 2019, Ulrich Sibiller wrote:


Date: Sun, 17 Mar 2019 09:57:04 +0100
From: Ulrich Sibiller 
To: Robert Dinse 
Cc: "x2go-user@lists.x2go.org" 
Subject: Re: [X2Go-User] Manjaro

On Sun, Mar 17, 2019 at 8:14 AM Robert Dinse  wrote:



  I've installed x2goserver on Manjaro and when I try to connect using
XFCE desktop, I get a pop-up with this:

Connection failed. /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db:
syntax error in expression (error token is "::SQLite::db")
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line
131: DBD::SQLite::db: syntax error in expression (error token is
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax
error in expression (error token is "::SQLite::db")
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line
131: DBD::SQLite::db: syntax error in expression (error token is
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax
error in expression (error token is "::SQLite::db")
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line
131: DBD::SQLite::db: syntax error in expression (error token is
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax
error in expression (error token is "::SQLite::db") Unable to find free display
port or insert new session into database; parameters: port (50), hostname
(manjaro) and session name ().


In x2gocheckport line 131 I cannot see any SQL reference, can you
please investigate how thi script is called? (Add echo "$@"

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[X2Go-User] Manjaro

[Robert Dinse]

 I've installed x2goserver on Manjaro and when I try to connect using
XFCE desktop, I get a pop-up with this:

Connection failed. /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: 
syntax error in expression (error token is "::SQLite::db") 
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in 
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line 
131: DBD::SQLite::db: syntax error in expression (error token is 
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax 
error in expression (error token is "::SQLite::db") 
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in 
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line 
131: DBD::SQLite::db: syntax error in expression (error token is 
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax 
error in expression (error token is "::SQLite::db") 
/usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax error in 
expression (error token is "::SQLite::db") /usr/lib/x2go/x2gocheckport: line 
131: DBD::SQLite::db: syntax error in expression (error token is 
"::SQLite::db") /usr/lib/x2go/x2gocheckport: line 131: DBD::SQLite::db: syntax 
error in expression (error token is "::SQLite::db") Unable to find free display 
port or insert new session into database; parameters: port (50), hostname 
(manjaro) and session name ().


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Re: [X2Go-User] Speed

[Robert Dinse]

 Ok, but Mozilla worked okay for me far past the point you indicate this
change was made.

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On Fri, 1 Mar 2019, Stefan Baur wrote:


Date: Fri, 1 Mar 2019 23:06:13 +0100
From: Stefan Baur 
To: "x2go-user@lists.x2go.org" 
Subject: Re: [X2Go-User] Speed

Am 01.03.19 um 23:00 schrieb Robert Dinse:

It might also help if I got a modern computer on the client side.


No.

As I've explained before - Firefox changed the way they render the page.
They are making heavy use of advanced graphics card features - but,
these are unavailable via NX, no matter how fancy your client-side *or*
your server-side graphics card is.

So the only way to speed things up would be to get a faster network
connection - which kind of defeats the purpose of NX.

Trust me, if there was a way to weasel around this Mozilla bullshit, we
would have recommended it long ago.

-Stefan

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Re: [X2Go-User] Speed

[Robert Dinse]

 It might also help if I got a modern computer on the client side.
I'm using a 2005 vintage Mac Pro 1,1, the very first Intel based Mac.  Quad 
Xeon 2.6 Ghz CPU but memory bandwidth is horrid owing to buffered registered 
memory.  THe video card was also antique.  Never the less used to be able to

watch video over x2go and this was actually far past the point where you say
Firefox went to hell.  It was about up to the point where they changed the
plugin interface to be useless.

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On Fri, 1 Mar 2019, Stefan Baur wrote:


Date: Fri, 1 Mar 2019 22:22:11 +0100
From: Stefan Baur 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Speed

Am 01.03.19 um 21:55 schrieb Robert Dinse:


 Was discussing how used to be able to watch videos on early x2go but
not anymore.  It was said to be a firefox issue.  I found an interesting
note in a vnc article but it might be applicable to x2go:


[snip]


 Wonder if tweaking with this could benefit x2go response?


No.

That's because unlike VNC, NX does not capture the content of a remote
framebuffer (=the server side), but does the actual drawing *right on
the client*.  Which is why you need a client-side X Server.
So there is no server-side X server in use that we could apply this
change to.  And like the text says, if you try to do it on the client
side, you will actually slow it down even further, because you disable
2D acceleration.

For the upcoming X2Go-KDrive, it might help - but KDrive only works with
full desktops, so it's no replacement for NX.

So if you want a fast Web browser with X2Go, I can only repeat what I
wrote previously: Help us get Pale Moon 28 up to speed again, either by
volunteering time as a tester, or by paying someone to work on the code.

-Stefan

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Re: [X2Go-User] x2go and Ubuntu 18.04 server

[Robert Dinse]

 Ok, thanks for the list.  There is not an aweful lot to like about the
current firefox.

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On Fri, 1 Mar 2019, Stefan Baur wrote:


Date: Fri, 1 Mar 2019 01:02:31 +0100
From: Stefan Baur 
To: "x2go-user@lists.x2go.org" 
Subject: Re: [X2Go-User] x2go and Ubuntu 18.04 server

Am 01.03.19 um 00:50 schrieb Robert Dinse:


 Yep might be a good thing to do.  It would be better if it still had
the efficiency it had in the early days.  Early implementations of x2go, I
could fire up firefox on the server and watch a video and for the most
part it was smooth.  These days I only get about 10 frames per second,
something has slowed.


Uh, yes, we've been discussing this on the list quite a while ago.  It's
not an X2Go issue, but a Firefox issue - they changed their rendering
engine to something that is super fast on a local machine, but is slow
as molasses on remote connections.  The only option used to be Pale Moon
- a Firefox fork - that kept the old engine, but only up to version 27.
28 is broken as well, and we could currently use some more funding
and/or additional manpower for the ongoing research/development project
to get PM 28 up to speed again.

See the thread "Firefox Browser Performance via X2Go - and a call for
help on behalf of X2Go and Pale Moon" dated "28.10.17, 13:26" in the
list archives:
<http://lists.x2go.org/pipermail/x2go-user/2017-October/004601.html>
(Initial crosspost to X2Go-User and X2Go-Dev)
<http://lists.x2go.org/pipermail/x2go-dev/2017-October/012168.html>
(Thread on X2Go-Dev, with a sole reply by Ulrich Sibiller).

Since there were no other replies back then, we were on our own, so work
is proceeding vry slwly.

-Stefan

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Re: [X2Go-User] x2go and Ubuntu 18.04 server

[Robert Dinse]

 Yep might be a good thing to do.  It would be better if it still had
the efficiency it had in the early days.  Early implementations of x2go, I
could fire up firefox on the server and watch a video and for the most
part it was smooth.  These days I only get about 10 frames per second, 
something has slowed.


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On Fri, 1 Mar 2019, Stefan Baur wrote:


Date: Fri, 1 Mar 2019 00:27:06 +0100
From: Stefan Baur 
To: "x2go-user@lists.x2go.org" 
Subject: Re: [X2Go-User] x2go and Ubuntu 18.04 server

Am 01.03.19 um 00:25 schrieb brian mullan:

I've installed x2goserver & x2goserver-xsession on ubuntu servers in the
past and then access that server via an x2go client
and it worked fine without installing a full Desktop Environment although
its a bit sparse :-)


Gee, first Robert, now you ... I guess we really need to advertise
Published Application mode more ... ;-)

-Stefan

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Re: [X2Go-User] x2go and Ubuntu 18.04 server

[Robert Dinse]

 Ok if you're expecting a display as if you had a head on a local machine
you need a desktop environment.  Granted you can do other things without but
then you can do that with ssh -X so why bother?

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On Thu, 28 Feb 2019, Stefan Baur wrote:


Date: Thu, 28 Feb 2019 23:41:40 +0100
From: Stefan Baur 
To: Robert Dinse 
Cc: x2go-user@lists.x2go.org, Mike Gabriel 
Subject: Re: [X2Go-User] x2go and Ubuntu 18.04 server

Am 28.02.19 um 23:33 schrieb Robert Dinse:


 You need a desktop environment.  If you are using the default gnome,
then you also need gnome-flashback-session.  Else install mate which works
perfectly with x2go.


No, you don't.

The fact that you can start a script, have the script start xterm in the
background, and then virt-manager clearly proves your statement wrong.

-Stefan

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Re: [X2Go-User] x2go and Ubuntu 18.04 server

[Robert Dinse]

 You need a desktop environment.  If you are using the default gnome,
then you also need gnome-flashback-session.  Else install mate which works
perfectly with x2go.

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On Thu, 28 Feb 2019, Stefan Baur wrote:


Date: Thu, 28 Feb 2019 12:15:33 +0100
From: Stefan Baur 
To: x2go-user@lists.x2go.org
Cc: Mike Gabriel 
Subject: Re: [X2Go-User] x2go and Ubuntu 18.04 server

Am 28.02.19 um 10:42 schrieb Heiko Friedel:

Hi all,

I'm trying to use x2go-server on a headless machine for virt-manager
with x2go-client on Win10. I did not install any desktop environment.

x2go terminates the connection immediately, no window is shown. If I use
VcXsrv with putty, virt-manager is working fine.


CCing Mike#1, as he has some python knowledge and virt-manager is a
python program (called by a bash wrapper, no idea why) ...

What seems to happen is that X2Go doesn't detect virt-manager as an X
application.

If I write a wrapper script like so:

#!/bin/bash
timeout 10 xterm & # background xterm, don't call virt-manager from it
/usr/bin/virt-manager

Then virt-manager will start - but will die after 10 seconds, when
"timeout" kills the backgrounded, empty, idle xterm session.
I would understand this behavior if virt-manager was called from
*within* xterm, but as you can see, it is called separately.

@Mike: Any idea as to what's going wrong here and how to fix it?

Kind Regards,
Stefan Baur

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Re: [X2Go-User] (no subject)

[Robert Dinse]

 Try using display 1 instead of "fullscreen" and see if that does what
you want.

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On Wed, 6 Feb 2019, Stroganov Roman wrote:


Date: Wed, 6 Feb 2019 09:38:08 +0200
From: Stroganov Roman 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] [utf-8] (no subject)

Hello.

If I am connected with linux x2go client to the server to me the full
screen, but with an opportunity to minimize or maximize it with the help by
a mouse is necessary. I know about hot buttons, but it not that it is
necessary for my users. And they not always work:(
Whether there is an opportunity to have a control bar a x2go session in the
full-screen mode as it is made in Remmina or MS-RDP-Client? I enclosed
screenshots of their control bars in the letter what would be clear.
If I am able to do it - help to configure it please. If there is no such
function, then tell is in development plans?

He is grateful for any help!

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[X2Go-User] X2go on Salix

[Robert Dinse]

 I installed x2goserver on salix.  It complained about a couple of missing
perl modules when I tried to login, I installed them, after that it just hangs
when I try to login, never times out, never starts up.  Any hints?

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[X2Go-User] Cosmic Cuttlefish Nightly Repo

[Robert Dinse]

 We wondering if there was any chance at a Nightly Builds repo for
Cosmic Cuttlefish Ubuntu 18,10?

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Re: [X2Go-User] KEX Errors

[Robert Dinse]

 Actually they are getting that error, on the Windows side, sorry.

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On Fri, 19 Oct 2018, Robert Dinse wrote:


Date: Fri, 19 Oct 2018 13:49:48 -0700 (PDT)
From: Robert Dinse 
To: "x2go-user@lists.x2go.org" 
Subject: [X2Go-User] KEX Errors


I am having difficulty connecting with the most recent stable of x2go
for Windows on Windows 10 to my Linux servers.  I am getting a KEX error
(Key exchange error).  Any hint as how to troubleshoot and fix?

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[X2Go-User] KEX Errors

[Robert Dinse]

 I am having difficulty connecting with the most recent stable of x2go
for Windows on Windows 10 to my Linux servers.  I am getting a KEX error
(Key exchange error).  Any hint as how to troubleshoot and fix?

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Re: [X2Go-User] OpenSuse Leap 15

[Robert Dinse]

 Found the secret, need 15.0 not just 15.

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On Thu, 4 Oct 2018, Robert Dinse wrote:


Date: Thu, 4 Oct 2018 17:03:27 -0700 (PDT)
From: Robert Dinse 
To: "x2go-user@lists.x2go.org" 
Subject: [X2Go-User] OpenSuse Leap 15


Trying to install x2go nightly on opensuse leap 15, I tried:

zypper ar http://packages.x2go.org/opensuse/15/extras x2go-extras
zypper ar http://packages.x2go.org/opensuse/15/heuler x2go-nightly

But then: zypper search x2go does not return anything
cfg x2go also fails and it bitches about the x2go repositories being
invalid.

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[X2Go-User] OpenSUSE Leap 15

[Robert Dinse]

 Can someone tell me if x2go is ported to OpenSuse Leap 15?

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[X2Go-User] OpenSuse Leap 15

[Robert Dinse]

 Trying to install x2go nightly on opensuse leap 15, I tried:

 zypper ar http://packages.x2go.org/opensuse/15/extras x2go-extras
 zypper ar http://packages.x2go.org/opensuse/15/heuler x2go-nightly

 But then: zypper search x2go does not return anything
 cfg x2go also fails and it bitches about the x2go repositories being
invalid.

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Re: [X2Go-User] It might be that we already have KDE5/Plasma support ...

[Robert Dinse]

 It broke for me when I upgraded to 28.

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On Mon, 1 Oct 2018, Mike Gabriel wrote:


Date: Mon, 01 Oct 2018 14:43:45 +
From: Mike Gabriel 
To: Robert Dinse 
Cc: Neal Becker , x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma support
...

On  Do 27 Sep 2018 23:11:25 CEST, Robert Dinse wrote:


Well, with Fedora 28, KDE is just a back screen


Same here, too. Seeing it on Debian testing and (!) on Debian stretch, too.

On Debian stretch, things used to work well with X2Go + KDE5. Regarding 
Debian's conservative release policy, this smells like we changed something 
in X2Go, maybe, too.


Although, this doesn't explain, why KDE5 from Fedora 27 was working ok for 
Robert.


Mike
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Re: [X2Go-User] It might be that we already have KDE5/Plasma support ...

[Robert Dinse]

 Well, with Fedora 28, KDE is just a back screen, no plasma-theme
is available in the repositories and that is what I previously was using.

 Also previously working, now broken, is gnome.  No gnome-flashbck or 
gnome-session-flashback in the repositories.


 What is still working is LXQT and Mate.

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On Thu, 27 Sep 2018, Robert Dinse wrote:


Date: Thu, 27 Sep 2018 04:52:34 -0700 (PDT)
From: Robert Dinse 
To: Neal Becker 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma support
...


I have not upgraded to 28 yet, still on 27, so perhaps they broke
something.  I'll let you know after I upgrade.

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On Thu, 27 Sep 2018, Neal Becker wrote:


Date: Thu, 27 Sep 2018 06:49:10 -0400
From: Neal Becker 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma 
support

...

Robert Dinse wrote:




  Just stock config.

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On Tue, 25 Sep 2018, Orion Poplawski wrote:


Date: Tue, 25 Sep 2018 16:55:22 -0600
From: Orion Poplawski 
To: Robert Dinse 
Cc: Stefan Baur ,
x2go-user@lists.x2go.org Subject: Re:
[X2Go-User] It might be that we already have KDE5/Plasma support
...

Are you specifying any OPENGL rendering options or similar?  Or just
stock config?

On 09/25/2018 04:48 PM, Robert Dinse wrote:


KDE5/Plasma has been working fine over X2go for me.  Only issue I've had
is that on some machines the session terminate is not working, it just
restarts the session.

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On Tue, 25 Sep 2018, Orion Poplawski wrote:


Date: Tue, 25 Sep 2018 16:24:32 -0600
From: Orion Poplawski 
To: Stefan Baur ,
x2go-user@lists.x2go.org Subject: Re:
[X2Go-User] It might be that we already have KDE5/Plasma support ...

On 08/10/2017 07:07 PM, Stefan Baur wrote:

Hi $LIST,

According to Mike#1, who currently attends DebConf in Montreal,
Debian 9 + X2Go Stable + KDE5/Plasma have been shown to work together.
This is a single report so far, though.

If anyone is willing and able to test and confirm this, it would be
highly appreciated.

Another test result we'd be interested in would be what happens if you
use Arctica NX-Libs and X2Go Heuler instead of X2Go Stable.


I'm curious as to what other people are seeing with this these days.
With Fedora 28 plasma-desktop-5.13.4-1.fc28.x86_64 I'm still seeing
plasma shell and other apps crash trying to initialize GLX.


Just tried on fedora 28.  I get a black screen with messages about krunner
crashed.


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Re: [X2Go-User] It might be that we already have KDE5/Plasma support ...

[Robert Dinse]

 I upgraded to Fedora 28, now KDE is broken for me as well.

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On Thu, 27 Sep 2018, Robert Dinse wrote:


Date: Thu, 27 Sep 2018 04:52:34 -0700 (PDT)
From: Robert Dinse 
To: Neal Becker 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma support
...


I have not upgraded to 28 yet, still on 27, so perhaps they broke
something.  I'll let you know after I upgrade.

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On Thu, 27 Sep 2018, Neal Becker wrote:


Date: Thu, 27 Sep 2018 06:49:10 -0400
From: Neal Becker 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma 
support

...

Robert Dinse wrote:




  Just stock config.

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On Tue, 25 Sep 2018, Orion Poplawski wrote:


Date: Tue, 25 Sep 2018 16:55:22 -0600
From: Orion Poplawski 
To: Robert Dinse 
Cc: Stefan Baur ,
x2go-user@lists.x2go.org Subject: Re:
[X2Go-User] It might be that we already have KDE5/Plasma support
...

Are you specifying any OPENGL rendering options or similar?  Or just
stock config?

On 09/25/2018 04:48 PM, Robert Dinse wrote:


KDE5/Plasma has been working fine over X2go for me.  Only issue I've had
is that on some machines the session terminate is not working, it just
restarts the session.

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On Tue, 25 Sep 2018, Orion Poplawski wrote:


Date: Tue, 25 Sep 2018 16:24:32 -0600
From: Orion Poplawski 
To: Stefan Baur ,
x2go-user@lists.x2go.org Subject: Re:
[X2Go-User] It might be that we already have KDE5/Plasma support ...

On 08/10/2017 07:07 PM, Stefan Baur wrote:

Hi $LIST,

According to Mike#1, who currently attends DebConf in Montreal,
Debian 9 + X2Go Stable + KDE5/Plasma have been shown to work together.
This is a single report so far, though.

If anyone is willing and able to test and confirm this, it would be
highly appreciated.

Another test result we'd be interested in would be what happens if you
use Arctica NX-Libs and X2Go Heuler instead of X2Go Stable.


I'm curious as to what other people are seeing with this these days.
With Fedora 28 plasma-desktop-5.13.4-1.fc28.x86_64 I'm still seeing
plasma shell and other apps crash trying to initialize GLX.


Just tried on fedora 28.  I get a black screen with messages about krunner
crashed.


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Re: [X2Go-User] It might be that we already have KDE5/Plasma support ...

[Robert Dinse]

 KDE5/Plasma has been working fine over X2go for me.  Only issue I've had
is that on some machines the session terminate is not working, it just restarts
the session.

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On Tue, 25 Sep 2018, Orion Poplawski wrote:


Date: Tue, 25 Sep 2018 16:24:32 -0600
From: Orion Poplawski 
To: Stefan Baur , x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] It might be that we already have KDE5/Plasma support
...

On 08/10/2017 07:07 PM, Stefan Baur wrote:

Hi $LIST,

According to Mike#1, who currently attends DebConf in Montreal,
Debian 9 + X2Go Stable + KDE5/Plasma have been shown to work together.
This is a single report so far, though.

If anyone is willing and able to test and confirm this, it would be
highly appreciated.

Another test result we'd be interested in would be what happens if you
use Arctica NX-Libs and X2Go Heuler instead of X2Go Stable.


I'm curious as to what other people are seeing with this these days.  With
Fedora 28 plasma-desktop-5.13.4-1.fc28.x86_64 I'm still seeing plasma shell
and other apps crash trying to initialize GLX.

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[X2Go-User] Mandriva

[Robert Dinse]

 Has anyone installed x2goserver on mandriva 3.x?  If so can you tell
me how or point me to a document?

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Re: [X2Go-User] Problem restoring connection on Ubuntu 18.04

[Robert Dinse]

 I am running Ubuntu 18.04 and Mate and not having either of these 
problems.  I am running the nightly build though rather than the main line.


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On Tue, 11 Sep 2018, EI wrote:


Date: Tue, 11 Sep 2018 11:02:47 -0700
From: EI 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Problem restoring connection on Ubuntu 18.04

I have a very strange problem with x2goserver running on Ubuntu 18.04. I
get an error message on the client side when I try to suspend the
connection. I also, can't reconnect to existing connections. I haven't had
this problem with 16.04.

I tried debugging the problem and I discovered that
/var/lib/x2go/x2go_sessions database is not getting updated when connection
is created. I tried erasing and re-creating the database, same problem.

Even running perl script manually:
/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper.pl
insertsession,50,blah,blah-50-1536602027_stRkonsole_dp
doesn't change the database.

I installed x2goserver from ppa:x2go/stable following instructions on x2go
page.

What could be the reason for this? How do I debug it further?
Thank you.


Here's version info:
~$ x2goversion
x2goserver: 4.1.0.2
x2goserver-common: 4.1.0.2
x2goserver-extensions: 4.1.0.2
x2goserver-fmbindings: 4.1.0.2
x2goserver-printing: 4.1.0.2
x2goserver-x2goagent: 3.5.99.16
x2goserver-xsession: 4.1.0.2


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Re: [X2Go-User] Attention all users of Pale Moon and X2Go

[Robert Dinse]

 Pale Moon also works with the old style plugins that most modern browsers
broken, that's the primary reason I hang on to it.

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On Thu, 6 Sep 2018, Stefan Baur wrote:


Date: Thu, 6 Sep 2018 19:19:03 +0200
From: Stefan Baur 
To: x2go users 
Subject: Re: [X2Go-User] Attention all users of Pale Moon and X2Go

Uli,

There's not really a need for Telekinesis if you want to watch movies in
the browser, as long as you use Pale Moon 27 or earlier.
Also, Pale Moon is "speedy" not only with regards to video, but for
browsing in general (scrolling a page, etc.).
That's why we're looking for sponsors to get the PM27 behavior back in
the current release.
Getting a functional Telekinesis option into X2Go would be nice, but
will not solve our current problem.

Kind Regards,
Stefan Baur

Am 06.09.2018 um 18:07 schrieb Ulrich Sibiller:

Depending on your use case you could try https://www.brow.sh

For streaming performance there are efforts for telekinesis integration but
I have never seen it in action. There are some repos at
https://github.com/ArcticaProject?tab=repositories.

@Mike#1 Can you say something about the current state if the telekinesis
stuff?

Uli

John Stoffel  schrieb am Do., 6. Sep. 2018, 17:42:



In my case, I'm using x2go to manage a desktop that's 80ms away from
me, which obviously sucks for movies and all those animated
ads... tweaking my settings from WAN to ADSL helped.

It would be *nice* if there was some guidance, or possibly even
auto-tuning to show howto get the best performance over high bandwidth
but laggy links like this.

Should I be tweaking my compression settings as well?

And yes, I'll be trying out Pale Moon as well on my setup to see how
well it works for me in my situation.

It might be that I just need to use the web browser locally, and the
rest of my stuff is remote.  With a full screen remote session, it's
not clear how I can make this work on a single screen desktop.

John
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Re: [X2Go-User] Attention all users of Pale Moon and X2Go

[Robert Dinse]

 Yea with older firefox I was able to get real time video high res full
screen fine, now maybe 10-15 frames / second.

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On Wed, 5 Sep 2018, Stefan Baur wrote:


Date: Wed, 5 Sep 2018 22:20:56 +0200
From: Stefan Baur 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Attention all users of Pale Moon and X2Go

Hi List,

Pale Moon (a Firefox fork) up to version 27 was/is the recommended
browser to use via X2Go, as it performs way better than current Firefox
and its derivatives, especially over slow links.

With version 28, this is no longer true.  Something broke during that
update, and performance is now about as slow as with a regular, current
Firefox.

We have at least one commercial offer by a developer to get this
investigated and fixed, and currently one customer interested in
sponsoring this work.  However, they fear that the actual fix might
exceed their budget.

So, is anyone else out there that needs a fast, and supported/up-to-date
browser in an X2Go session?

If so, please either reply in this thread or contact me via E-Mail.

Kind Regards,
Stefan Baur

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Re: [X2Go-User] Maximum allowed

[Robert Dinse]

 Might try using "Display 1" as opposed to full screen.  You can set that
option using the pull down menu on the entry for that machine on the right
side, it is not available from the setup dialogue anymore for reasons I am
unfamiliar with.

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On Tue, 28 Aug 2018, richard lucassen wrote:


Date: Tue, 28 Aug 2018 11:38:38 +0200
From: richard lucassen 
Reply-To: x2go-user@lists.x2go.org
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Maximum allowed

On Mon, 27 Aug 2018 15:26:04 +0200
richard lucassen  wrote:


requested length exceeded (code 4)
Message-Id: <20180827152604.53712210c51522704b6ec...@lucassen.org>
Reply-To: x2go-user@lists.x2go.org
Organization: XAQ Systems
X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

Maybe it has nothing to do with x2go, but on my server I get this when
starting a few programs, e.g. VLC or sqlitebrowser:


[..]


IIRC the program runs well on the local machine. Anyone a hint?


Hmmm, when setting x2go client to a fixed screensize instead of
fullscreen (which I don't want) the problem has gone. Anyone an idea?

R.

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[X2Go-User] utmp / wtmp

[Robert Dinse]

 Is there a way to make an x2go session show up in utmp and wtmp as a
normal ssh terminal session would?

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[X2Go-User] Backgrounds

[Robert Dinse]

 Oddly today all my backgrounds are displaying again.

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Re: [X2Go-User] Backgrounds

[Robert Dinse]

 I have two servers not working, two working, the ones that are working
and not working both have nxagent 3.5.99.16 so not a version issue since same
version works on one box and not another.

 I installed LXDE on one of the machines that was not displaying the
background and with LXDE it works properly, with Mate it does not, so this
would seem to be something broken with Mate.

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On Mon, 13 Aug 2018, Markus wrote:


Date: Mon, 13 Aug 2018 08:57:48 +0200
From: Markus 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Backgrounds

As xubuntu user, I never had this kind of problems.

On server, I am using NXAGENT - Version 3.5.99.16
No problems here.


Am 13.08.2018 um 04:12 schrieb Robert Dinse:


 On all of my Ubuntu servers when accessing via x2go and mate
desktop, I
no longer see the background, just solid black.  Going to other systems
such
as CentOS still displays background okay.

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[X2Go-User] Backgrounds

[Robert Dinse]

 On all of my Ubuntu servers when accessing via x2go and mate desktop, I
no longer see the background, just solid black.  Going to other systems such
as CentOS still displays background okay.

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[X2Go-User] Debugging Server Side Issues

[Robert Dinse]

 I've installed x2goserver on Enso, a Ubuntu derived Linux.  It works
find as root, but as a non-root user it fails.  In syslog on the server I
see the following:

Jul 28 18:44:08 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 1).
Jul 28 18:44:08 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 2).
Jul 28 18:44:08 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 3).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 4).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 5).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 6).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 7).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 8).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 9).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: no free display number available, 
cannot start new session. Retrying (run 10).
Jul 28 18:44:09 enso /usr/bin/x2gostartagent: Unable to find free display port 
or insert new session into database; parameters: port (50), hostname (enso) and 
session name ().


 Since it works as root I'm assuming a permission issue somewhere but I
have no idea where to look.  Any suggestions?

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Re: [X2Go-User] using a xfce compositor with x2go server/client

[Robert Dinse]

 Something wrong with your install.  I've just installed it and it is
working fine via x2go for me.

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On Fri, 13 Jul 2018, Tim Klassen wrote:


Date: Fri, 13 Jul 2018 18:04:01 -0700
From: Tim Klassen 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] using a xfce compositor with x2go server/client

I've just installed x2go server on a new desktop running linux mint 19
xfce. (My client is on Ubuntu 14.04.)  I was disappointed to find that the
xfce doesn't work with this setup.  Have I done something wrong?  Are there
any other ways that I can get a compositor to work with x2go?


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[X2Go-User] LXQT

[Robert Dinse]

 I had always heard that lxqt did not work with x2go but I just installed
it on enso, a Linux distribution based upon Ubuntu Bionic 18.04, and it works
fine.

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[X2Go-User] Various

[Robert Dinse]

 Couple of notes here, I installed x2go server on Zorin. Zorin is yet 
another Ubuntu derivative with a hopelessly broken Gnome and KDE 
implementation.  I am using Mate or LXDE both of which do work.  The Nightly 
Build connects then immediately disconnects.  The Stable works mostly okay.  I 
am having problems with the stable leaving sessions up and not deleting them 
when I logout.


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Re: [X2Go-User] installing x2go server on a mostly headless RHEL 7, solving black screen on Windows client

[Robert Dinse]

 If you have gnome-flashback installed, it works with gnome3 now.

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On Mon, 7 May 2018, Heinz Wrobel wrote:


Date: Mon, 7 May 2018 16:12:49 +
From: Heinz Wrobel 
To: "x2go-user@lists.x2go.org" 
Subject: [X2Go-User] installing x2go server on a mostly headless RHEL 7,
solving black screen on Windows client

Hi,

I found a few interesting things when trying to install the x2go server on a 
somewhat customized and mostly headless RHEL 7 VM in the cloud, specifically in 
this case on a RHEL 7.2.
These findings might help others, so I thought I'd post the details with some 
side notes.

Following the instructions on 
https://wiki.x2go.org/doku.php/doc:installation:x2goserver for RHEL 7 was not 
quite enough to install a working server on this specific RHEL 7 VM.
Due to the various documented issues with Gnome 3, I had switched the VM to "Server 
with GUI" with Xfce, but it still didn't help. On installing Xfce I even had to skip 
a broken dependency regarding sound support to make it install, but that is a side note 
only in case you also see something like that. I don't care about sound, so that single 
thing was easy to ignore for me.

In any case, when trying to connect with a Windows x2go client, not even the X 
desktop window on the client showed up initially.

Some investigation and log searching revealed that /usr/bin/x2goruncommand 
relies on dbus-run-session. This RHEL 7 machine only had dbus-launch because 
its dbus libs are older, and therefore it completely failed to even invoke the 
Xsession properly.
So I hacked x2goruncommand to do the following fallback:


  typeset dbus_wrapper="$(type -P "dbus-run-session")"
   typeset dbus_wrapper_args=""
   if [ -z "${dbus_wrapper}" ]; then
   typeset dbus_wrapper="$(type -P "dbus-launch")"
   typeset dbus_wrapper_args="--exit-with-session"
   fi
[...]
  XSESSION_EXEC="$cmd" STARTUP="/usr/bin/env LD_LIBRARY_PATH=${LD_LIBRARY_PATH} 
${STARTUP}" ${dbus_wrapper} ${dbus_wrapper_args} /etc/x2go/Xsession >> "$MESSAGE_FILE" 2>&1


This little hack was good enough to make the client show the server window, but 
I got a black window only. No remote desktop in sight still.
Using htop on the server, I saw that while the x2goagent was running, there was 
no xfce4 session of any kind or anything else that looked like a process 
related to any desktop session.

After a long set of weird and clueless debug steps I found a problem because I manually 
invoked "dbus-launch --exit-with-session /etc/x2go/Xsession".
It complained about elements in bash-completion.d not being valid identifiers, starting 
with "_itweb-settings()". Anything bad that can be fixed should be fixed while 
debugging along, so I started fixing those to see what might happen next.
Iteratively I went through the following files in /etc/bash_completion.d to remove the 
"-" from the function name identifiers only(!) that it was complaining about:

- rhn-migrate-classic-to-rhsm
- rhsm-debug
- rhsm-icon

After the manual invocation of the Xsession no longer complained about 
bash-completion, I tried the client and ... Ta Da! ... the session came up and 
seems to work well now.
I am sure there are other things that may need fixing and your mileage may 
vary, but all that is for another day.

The moral of the story: It's not always just older dbus libs or similar things. 
Even seemingly unrelated bash completion quirks can make the x2go Xsession 
script fail to start up ... and not show anything in any obvious log file.

BR,

Heinz

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Re: [X2Go-User] Best Linux Distro for x2go server sessions as of April 2018?

[Robert Dinse]

 I've found MxLinux to be excellent in this regard.  I have gnome, mate,
kde, lxde, xcfe, openbox, and icewm ALL working via x2go on this platform.

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On Sat, 14 Apr 2018, Jason Heeris wrote:


Date: Sat, 14 Apr 2018 02:11:44 +
From: Jason Heeris 
To: John Stoffel 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Best Linux Distro for x2go server sessions as of
April 2018?

On Sat., 14 Apr. 2018, 12:02 pm John Stoffel,  wrote:


But at my $WORK, where we're mostly RHEL/CentOS based, it looks like
sticking with CentOS 6.9 is the best solution currently.   Which kinda
stinks.  Does Fedora work better or at least just as well when running
the Mate desktop?



I can't comment on Fedora, but I know that with Ubuntu being Gnome 3-based
by default too, XFCE seems to work a bit better than other stripped down
DEs; that is, when other parts of the distro assume Gnome (or are only
tested on Gnome), fewer things seem to break under XFCE. Having said that,
I've used it for so long as a server DE my opinion on this could be out of
date.

ÿÿ Jason
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Re: [X2Go-User] Logging Problem

[Robert Dinse]

 Have you tried an ssh login to the same site?

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On Sun, 1 Apr 2018, Pan DJ wrote:


Date: Sun, 1 Apr 2018 03:42:43 +
From: Pan DJ 
To: "x2go-user@lists.x2go.org" 
Subject: [X2Go-User] Logging Problem

Dear  Sir Madam
I can't log in to X2go.
My computer system is win10, 64 bit, and the X2go version is 
x2goclient-4.1.1.1-2018.03.01-setup
The specific situation is as shown in the figure
How can i do tu login
Best Wishes
Pan


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Re: [X2Go-User] MxLinux

[Robert Dinse]

 One of my customers found that if he used a clean PATH and did not
change it in his .profile he could connect.  Then I determined which 
directories included in the PATH made it fail, and then he realized those

directories would be prohibited if perl was run tainted, and he knew enough
about monkeysphere to know it would do this.  So we took the start up out
of the X2Go Xession directory and that made it work.

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On Sun, 25 Mar 2018, John Stoffel wrote:


Date: Sun, 25 Mar 2018 19:32:38 -0400
From: John Stoffel <j...@stoffel.org>
To: Robert Dinse <nan...@eskimo.com>
Cc: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: Re: [X2Go-User] MxLinux


"Robert" == Robert Dinse <nan...@eskimo.com> writes:


Robert>   Found the issue with MxLinux, had monkeysphere
Robert> installed, it causes perl to be called with the -T flag, and
Robert> this made having insecure directories such as /etc or '.' in
Robert> your $PATH problematic.

So how did you debug this?  Did you find the problem in the x2go logs?
Or somewhere else?  Please share your expertise, since it's a pain to
debug otherwise.


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Re: [X2Go-User] Stupid User Tricks

[Robert Dinse]

ool/C-nanook-50-1521971857_stDMATE_dp24"
Mar 25 02:57:42 mxlinux /usr/bin/x2gofeature: x2gofeature called with options: 
X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-compat.features: 
x2goserver-compat.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: 
x2goserver-extensions.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: 
x2goserver-fmbindings.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-printing.features: 
x2goserver-printing.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-xsession.features: 
x2goserver-xsession.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux /usr/share/x2go/x2gofeature.d/x2goserver.features: 
x2goserver.features called with options: X2GO_MATEBINDINGS
Mar 25 02:57:42 mxlinux /usr/bin/x2gofeature: x2gofeature called with options: 
X2GO_FMBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-compat.features: 
x2goserver-compat.features called with options: X2GO_FMBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: 
x2goserver-extensions.features called with options: X2GO_FMBINDINGS
Mar 25 02:57:42 mxlinux 
/usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: 
x2goserver-fmbindings.features called with options: X2GO_FMBINDINGS
Mar 25 02:57:42 mxlinux /usr/bin/x2gocmdexitmessage: x2gocmdexitmessage called 
with options: nanook-50-1521971857_stDMATE_dp24

root@mxlinux:/var/log#

 Does anyone see anything obviously broken?

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On Sun, 25 Mar 2018, Robert Dinse wrote:


Date: Sun, 25 Mar 2018 02:44:42 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: Re: [X2Go-User] Stupid User Tricks


I've changed the log level to debug but it produces no useful errors.

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On Sun, 25 Mar 2018, Robert Dinse wrote:


Date: Sun, 25 Mar 2018 01:47:27 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: [X2Go-User] Stupid User Tricks


I've installed x2go on an mxlinux system.  It works as root, but as an
ordinary user it starts to start then disconnects.  Any suggestions on how 
to

troubleshoot?  Ssh works to the same box without errors.


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Re: [X2Go-User] Stupid User Tricks

[Robert Dinse]

 I've changed the log level to debug but it produces no useful errors.

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On Sun, 25 Mar 2018, Robert Dinse wrote:


Date: Sun, 25 Mar 2018 01:47:27 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: [X2Go-User] Stupid User Tricks


I've installed x2go on an mxlinux system.  It works as root, but as an
ordinary user it starts to start then disconnects.  Any suggestions on how to
troubleshoot?  Ssh works to the same box without errors.

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[X2Go-User] Stupid User Tricks

[Robert Dinse]

 I've installed x2go on an mxlinux system.  It works as root, but as an
ordinary user it starts to start then disconnects.  Any suggestions on how to
troubleshoot?  Ssh works to the same box without errors.

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Re: [X2Go-User] Clipboard stops working

[Robert Dinse]

 Just that it used the old 3.5 libs might conflict with 3.5.99.

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On Wed, 21 Mar 2018, Norm Green wrote:


Date: Wed, 21 Mar 2018 16:43:08 -0700
From: Norm Green <norm.gr...@gemtalksystems.com>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working

I don't think I need freenx.  Are the removes all related to that? Mainly I 
was concerned about it removing x2goagent


On 3/21/2018 4:31 PM, Robert Dinse wrote:


 Unless I'm confusing with something else, this was what came as an
alternative to nx.


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On Wed, 21 Mar 2018, Robert Dinse wrote:


Date: Wed, 21 Mar 2018 16:24:59 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: Stefan Baur <x2go-m...@baur-itcs.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working


    Last time I went to their website it said they were not maintained
anymore and they suggested that they had been "replaced" by x2go.


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On Thu, 22 Mar 2018, Stefan Baur wrote:


Date: Thu, 22 Mar 2018 00:14:35 +0100
From: Stefan Baur <x2go-m...@baur-itcs.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working

Am 22.03.2018 um 00:06 schrieb Norm Green:


Doing apt-get dist-upgrade I get this.  Is dist-upgrade going to remove
anything that is needed?


If you need to use FreeNX on the same server, you should probably stop
right here and wait for someone more qualified to tell you whether or
not it is possible to run FreeNX in parallel to current X2Go stable.

If you don't care about FreeNX, well, can't hurt to do a backup first,
but other than that, go ahead and run the dist-upgrade.

Kind Regards,
Stefan Baur

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Re: [X2Go-User] Clipboard stops working

[Robert Dinse]

 Unless I'm confusing with something else, this was what came as an
alternative to nx.

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On Wed, 21 Mar 2018, Robert Dinse wrote:


Date: Wed, 21 Mar 2018 16:24:59 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: Stefan Baur <x2go-m...@baur-itcs.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working


Last time I went to their website it said they were not maintained
anymore and they suggested that they had been "replaced" by x2go.

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On Thu, 22 Mar 2018, Stefan Baur wrote:


Date: Thu, 22 Mar 2018 00:14:35 +0100
From: Stefan Baur <x2go-m...@baur-itcs.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working

Am 22.03.2018 um 00:06 schrieb Norm Green:


Doing apt-get dist-upgrade I get this.  Is dist-upgrade going to remove
anything that is needed?


If you need to use FreeNX on the same server, you should probably stop
right here and wait for someone more qualified to tell you whether or
not it is possible to run FreeNX in parallel to current X2Go stable.

If you don't care about FreeNX, well, can't hurt to do a backup first,
but other than that, go ahead and run the dist-upgrade.

Kind Regards,
Stefan Baur

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Re: [X2Go-User] Clipboard stops working

[Robert Dinse]

 Last time I went to their website it said they were not maintained
anymore and they suggested that they had been "replaced" by x2go.

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On Thu, 22 Mar 2018, Stefan Baur wrote:


Date: Thu, 22 Mar 2018 00:14:35 +0100
From: Stefan Baur 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working

Am 22.03.2018 um 00:06 schrieb Norm Green:


Doing apt-get dist-upgrade I get this.  Is dist-upgrade going to remove
anything that is needed?


If you need to use FreeNX on the same server, you should probably stop
right here and wait for someone more qualified to tell you whether or
not it is possible to run FreeNX in parallel to current X2Go stable.

If you don't care about FreeNX, well, can't hurt to do a backup first,
but other than that, go ahead and run the dist-upgrade.

Kind Regards,
Stefan Baur

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Geschäftsführer: Stefan Baur
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Re: [X2Go-User] Clipboard stops working

[Robert Dinse]

 You don't need the freenx entry anymore, nx-libs are distributed with
x2go now.

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On Wed, 21 Mar 2018, Norm Green wrote:


Date: Wed, 21 Mar 2018 15:02:00 -0700
From: Norm Green 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Clipboard stops working

Hi Stefan,

I get this error:

root@moop:~# apt update
Ign:1 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:2 http://dl.google.com/linux/chrome/deb stable Release
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:6 http://archive.canonical.com/ubuntu xenial InRelease
Hit:7 http://security.ubuntu.com/ubuntu xenial-security InRelease
Ign:8 http://ppa.launchpad.net/freenx-team/xenial/ubuntu xenial InRelease
Hit:9 http://ppa.launchpad.net/x2go/stable/ubuntu xenial InRelease
Err:10 http://ppa.launchpad.net/freenx-team/xenial/ubuntu xenial Release
  403  Forbidden
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/freenx-team/xenial/ubuntu xenial 
Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore 
disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration 
details.




On 3/21/2018 2:17 PM, Stefan Baur wrote:

Hi Norm,

looks like you should run: apt update && apt upgrade && apt dist-upgrade

(confirm with "y" where appropriate and safe; abort if anything looks off)

If that doesn't pull in 4.1.x.x packages, we need to look at your
/etc/apt/sources.list and /etc/apt/sources.list.d/* entries.

Kind Regards,
Stefan Baur

Am 21.03.2018 um 22:01 schrieb Norm Green:

Hi Stefan,

Here's what I have:

normg@moop> apt list --installed |grep -i x2go
x2goagent/now 2:3.5.0.32-0~668~ubuntu16.04.1 all [installed,upgradable
to: 2:3.5.0.33-0~710~ubuntu16.04.1]
x2goserver/now 4.0.1.20-0~1125~ubuntu16.04.1 amd64 [installed,upgradable
to: 4.0.1.22-0~1197~ubuntu16.04.1]
x2goserver-extensions/now 4.0.1.20-0~1125~ubuntu16.04.1 all
[installed,upgradable to: 4.0.1.22-0~1197~ubuntu16.04.1]
x2goserver-xsession/now 4.0.1.20-0~1125~ubuntu16.04.1 all
[installed,upgradable to: 4.0.1.22-0~1197~ubuntu16.04.1]


normg@moop> apt list --installed |grep -i nx
inxi/xenial,xenial,now 2.2.35-0ubuntu1 all [installed,automatic]
libnx-x11-6/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xcomposite1/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xdamage1/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xdmcp6/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xext6/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xfixes3/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xinerama1/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xpm4/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xrandr2/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xrender1/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
libnx-xtst6/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
nx-x11-common/now 2:3.5.0.32-0~668~ubuntu16.04.1 all
[installed,upgradable to: 2:3.5.0.33-0~710~ubuntu16.04.1]
nxagent/now 2:3.5.0.32-0~668~ubuntu16.04.1 amd64 [installed,upgradable
to: 2:3.5.0.33-0~710~ubuntu16.04.1]


Norm


On 3/21/2018 1:54 PM, Stefan Baur wrote:

Am 21.03.2018 um 21:45 schrieb Norm Green:

Hello List,

I find that the clipboard stops working after a period of time.
Specifically, copying from the windows desktop to the x2go window
doesn't work because x2go thinks the clipboard is empty.
I am copying from emacs on Windows to emacs on Linux.
It doesn't matter how many times I select and copy on windows, x2go does
not pass the clipboard contents to emacs on Linux.
But if I disconnect from the server and reconnect, it works, using the
same emacs windows.

This is with x2go client 4.1.1.1 running on Win7, but it also happened
on previous x2go client versions (4.0.x) .
  x2go server 4.0.1.20 is running on Ubuntu 16.04

Is this a known bug?  Any way to fix it?

This is/was actually a server issue rather than a client issue, so it
would be helpful if you posted x2go-/nx-related package versions 

Re: [X2Go-User] Best client/server pairings for RHEL 6 server and linux/windows clients?

[Robert Dinse]

 You need to have gnome-flashback for the newer gnome in Centos7 to work
with x2go, alternatively, you can install Mate which is a Gnome-2 fork ported
to gtk-3 on Centos7 and x2go will work with it.  It provides the same user
interface as the Gnome-2 you are used to on Centos6.

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On Mon, 19 Mar 2018, John Stoffel wrote:


Date: Mon, 19 Mar 2018 21:40:31 -0400
From: John Stoffel 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Best client/server pairings for RHEL 6 server and
linux/windows clients?


Guys,

I'm using x2go server on a CentOS 6.9 box, kept quite upto date, and I
have no problems connecting to it from both the desktop of that
system, and from home when I'm connecting in from a Linux desktop.  My
versions are:

Server (Linux CentOS 6.9):

 x2goclient-4.0.1.4-1.el6.x86_64
 x2goserver-4.0.1.20-1.el6.x86_64
 x2golxdebindings-debuginfo-1.0.2.4-1.1.x86_64
 x2goserver-xsession-4.0.1.20-1.el6.x86_64
 python-x2go-0.5.0.3-1.el6.noarch
 x2goagent-3.5.0.32-3.1.x86_64


Linux Client (Linux Mint 18.3):
 ii  nxproxy 2:3.5.0.33-0x2go1+git20180204.776+8.main.1   amd64NX proxy
 ii  x2go-keyring 2012.07.23~jessie~main~17~build1 all  
GnuPG keys
of all X2Go developers and the X2Go archive
 ii  x2goclient  4.1.1.1-0x2go1+git20180302.1732+8.main.1 amd64X2Go 
Client
application (Qt4)


But when I try to use the latest client stuff from my Windows 7
system, I just get a connection which shows up for a second, then
disconnects and returns me to the connection screen.  I can't figure
out what I'm doing wrong.  But I'm loathe to upgrade my server just in
case I break a working setup.

In the meantime I've built a new CentOS-7.4 system, which is using the
same packages as my CentOS 6.9 server, but for some reason I just
can't reliably connect there either.

Been following the mailing list for a while, since this is really my
best option to be able to have my linux sessions travel around with
me.  But debugging has been a chore, since there are so many files and
places which need to be looked into.  And it's not clear WHY
connections fail.

And actually, does RHEL/CentOS 7 with a Gnome desktop even work?  Is
there an issue with OpenGL like there is with VNC desktops?

Thanks,
John
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Re: [X2Go-User] Deprecation and removal of X2Go Plugin

[Robert Dinse]

 Anyway there is Guacamole for browser based RDP without a plugin.  Not
nearly as capable but if you're just trying to provide something that will
work from a kiosk or something that's an option.

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On Tue, 13 Mar 2018, Mihai Moldovan wrote:


Date: Tue, 13 Mar 2018 09:57:07 +0100
From: Mihai Moldovan 
To: "x2go-...@lists.x2go.org" ,
"x2go-user@lists.x2go.org" 
Subject: [X2Go-User] Deprecation and removal of X2Go Plugin

Hi


Since most browsers either stopped supporting NPAPI (or will be dropping support
with the next ESR version) and Qt 5 does not feature a browser plugin
architecture any longer, I will be ripping out code related to the X2Go Plugin
in the development version of X2Go Client soonish.

Expect the next version to not supply X2Go Plugin binaries.



Mihai



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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Might be because of backports being enabled giving me a newer version of
something:

 deb http://packages.linuxmint.com sylvia main upstream import backport 
enabled giving me a newer version of something?  Or maybe my apt database is

corrupted somehow.  This has been upgraded in place many times, not a fresh
18.3 install.

deb http://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu xenial-updates main restricted universe 
multiverse
deb http://archive.ubuntu.com/ubuntu xenial-backports main restricted universe 
multiverse


deb http://security.ubuntu.com/ubuntu/ xenial-security main restricted universe 
multiverse

deb http://archive.canonical.com/ubuntu/ xenial partner
deb http://ppa.launchpad.net/x2go/stable/ubuntu artful main
#deb-src http://ppa.launchpad.net/x2go/stable/ubuntu xenial main

‹‹‹‹

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On Sun, 11 Mar 2018, Mihai Moldovan wrote:


Date: Sun, 11 Mar 2018 07:38:19 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/11/2018 06:15 AM, Robert Dinse wrote:

  With xenial:

apt install x2goserver x2gomatebindings x2golxdebindings --install-suggests
--install-recommends --fix-broken --fix-missing
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  x2goserver : Depends: x2goserver-x2goagent (>= 4.1.0.0-0~1517~ubuntu16.04.1)
but it is not going to be installed
   Depends: x2goserver-x2goagent (< 4.1.0.0-0~1517~ubuntu16.04.1.1~)
but it is not going to be installed
E: Unable to correct problems, you have held broken packages.


Cannot reproduce:

ionic-Standard-PC-i440FX-PIIX-1996 ~ # add-apt-repository ppa:x2go/stable
You are about to add the following PPA:
Quick howto to turn your machine into an X2Go server:

sudo apt-add-repository ppa:x2go/stable
sudo apt-get update
sudo apt-get install x2goserver x2goserver-xsession
sudo apt-get install x2gomatebindings  # if you use MATE/mubuntu
sudo apt-get install x2golxdebindings  # if you use LXDE/lubuntu

Quick howto to install the x2goclient:

sudo apt-add-repository ppa:x2go/stable
sudo apt-get update
sudo apt-get install x2goclient

Enjoy!
More info: https://launchpad.net/~x2go/+archive/ubuntu/stable
Press Enter to continue or Ctrl+C to cancel

Executing: /tmp/tmp.hDxxLtwHbD/gpg.1.sh --keyserver
hkp://keyserver.ubuntu.com:80
--recv-keys
0A53F9FD
gpg: requesting key 0A53F9FD from hkp server keyserver.ubuntu.com
gpg: key 0A53F9FD: public key "Launchpad PPA for x2go" imported
gpg: Total number processed: 1
gpg:   imported: 1  (RSA: 1)
ionic-Standard-PC-i440FX-PIIX-1996 ~ # apt-get update
Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://ppa.launchpad.net/x2go/stable/ubuntu xenial InRelease [23,8 kB]

Hit:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease

Hit:4 http://security.ubuntu.com/ubuntu xenial-security InRelease

Hit:5 http://archive.canonical.com/ubuntu xenial InRelease

Hit:6 http://archive.ubuntu.com/ubuntu xenial-backports InRelease

Ign:7 http://packages.linuxmint.com sylvia InRelease

Hit:8 http://packages.linuxmint.com sylvia Release
Get:9 http://ppa.launchpad.net/x2go/stable/ubuntu xenial/main Sources [5.148 B]
Get:11 http://ppa.launchpad.net/x2go/stable/ubuntu xenial/main amd64 Packages
[17,4 kB]
Get:12 http://ppa.launchpad.net/x2go/stable/ubuntu xenial/main i386 Packages
[17,4 kB]
Get:13 http://ppa.launchpad.net/x2go/stable/ubuntu xenial/main Translation-en
[9.256 B]
Fetched 72,9 kB in 0s (95,5 kB/s)
Reading package lists... Done
ionic-Standard-PC-i440FX-PIIX-1996 ~ # apt-get install x2goserver
x2goserver-xsession
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
 libcapture-tiny-perl libconfig-simple-perl libdbd-pg-perl libdbd-sqlite3-perl
libdbi-perl libfile-which-perl libnx-x11-6
 libpq5 libswitch-perl libtry-tiny-perl libx2go-log-perl libx2go-server-db-perl
libx2go-server-perl libxcomp3 libxcompshad3
 libxfont2 nx-x11-common nxagent openssh-server openssh-sftp-server pwgen
x2goserver-common x2goserver-x2goagent
Suggested packages:
 libmldbm-perl libnet-daemon-perl libsql-statement-perl rssh molly

Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

acking x2gomatebindings (0.0.1.5-0~203~ubuntu17.10.1) ...
Selecting previously unselected package x2goserver-fmbindings.
Preparing to unpack 
.../x2goserver-fmbindings_4.1.0.0-0~1517~ubuntu17.10.1_all.deb ...

Unpacking x2goserver-fmbindings (4.1.0.0-0~1517~ubuntu17.10.1) ...
Selecting previously unselected package x2goserver-printing.
Preparing to unpack 
.../x2goserver-printing_4.1.0.0-0~1517~ubuntu17.10.1_all.deb ...

Unpacking x2goserver-printing (4.1.0.0-0~1517~ubuntu17.10.1) ...
Selecting previously unselected package x2goserver-xsession.
Preparing to unpack 
.../x2goserver-xsession_4.1.0.0-0~1517~ubuntu17.10.1_all.deb ...

Unpacking x2goserver-xsession (4.1.0.0-0~1517~ubuntu17.10.1) ...
Processing triggers for fontconfig (2.11.94-0ubuntu1.1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for doc-base (0.10.7) ...
Processing 5 added doc-base files...
Registering documents with scrollkeeper...
Processing triggers for systemd (229-4ubuntu21.1) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22+linuxmint1) ...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'
Processing triggers for mate-icon-theme (1.18.2-1+sonya) ...
Setting up cups-x2go (3.0.1.3-1) ...
Setting up nx-x11-common (2:3.5.99.15-0~201803072246~ubuntu17.10.1) ...
Setting up libnx-x11-6:amd64 (2:3.5.99.15-0~201803072246~ubuntu17.10.1) ...
Setting up x2goserver-common (4.1.0.0-0~1517~ubuntu17.10.1) ...
Creating x2gouser group.
Adding group `x2gouser' (GID 126) ...
Done.
Creating x2gouser user.
Adding system user `x2gouser' (UID 118) ...
Adding new user `x2gouser' (UID 118) with group `x2gouser' ...
Not creating home directory `/var/lib/x2go'.
Setting up libx2go-log-perl (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up libx2go-server-db-perl (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up libx2go-server-perl (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up libxcompshad3:amd64 (2:3.5.99.15-0~201803072246~ubuntu17.10.1) ...
Setting up nxagent (2:3.5.99.15-0~201803072246~ubuntu17.10.1) ...
Setting up x2goserver-x2goagent (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up x2goserver (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up x2golxdebindings (1.0.2.4-0~70~ubuntu17.10.1) ...
Setting up x2goserver-extensions (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up x2gomatebindings (0.0.1.5-0~203~ubuntu17.10.1) ...
Setting up x2goserver-fmbindings (4.1.0.0-0~1517~ubuntu17.10.1) ...
Setting up x2goserver-printing (4.1.0.0-0~1517~ubuntu17.10.1) ...
Creating x2goprint group.
Adding group `x2goprint' (GID 131) ...
Done.
Creating x2goprint user.
Warning: The home dir /var/spool/x2goprint you specified already exists.
Adding system user `x2goprint' (UID 123) ...
Adding new user `x2goprint' (UID 123) with group `x2goprint' ...
The home directory `/var/spool/x2goprint' already exists.  Not copying from 
`/etc/skel'.
adduser: Warning: The home directory `/var/spool/x2goprint' does not belong to 
the user you are currently creating.

Setting up x2goserver-xsession (4.1.0.0-0~1517~ubuntu17.10.1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...
Processing triggers for systemd (229-4ubuntu21.1) ...
Processing triggers for ureadahead (0.100.0-19) ...

 Yakkety and zesty would also install but would not work, artful works.

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On Sun, 11 Mar 2018, Mihai Moldovan wrote:


Date: Sun, 11 Mar 2018 05:57:37 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/11/2018 05:56 AM, Robert Dinse wrote:

  It got it to work, xenial was broken, and everything prior had wrong
library version for the Mint 18.3 X-server.  Since I am doing some work on the
machine tonight I really needed it to work, it was either that or vnc which is
extremely painful.


But you said the Xenial repo still fails to upgrade on Mint 18.3? Is that still
the case?

I guess I'll just try to see what happens myself.



Mihai



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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 It got it to work, xenial was broken, and everything prior had wrong 
library version for the Mint 18.3 X-server.  Since I am doing some work on the 
machine tonight I really needed it to work, it was either that or vnc which is 
extremely painful.


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On Sun, 11 Mar 2018, Mihai Moldovan wrote:


Date: Sun, 11 Mar 2018 05:53:30 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/11/2018 04:39 AM, Robert Dinse wrote:

  Also, all repositories older than artful wanted to use the 3.5.0 libs
but need 3.5.99 to get the proper version of xrandr for Mint 18.3.


Switching to packages for a newer system version than you have isn't a good 
idea...

I'll install a Mint 18.3 VM to figure out what might be wrong, if I can
reproduce the problem.



Mihai




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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Also, all repositories older than artful wanted to use the 3.5.0 libs
but need 3.5.99 to get the proper version of xrandr for Mint 18.3.

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On Sat, 10 Mar 2018, Robert Dinse wrote:


Date: Sat, 10 Mar 2018 19:30:44 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails


I edited the x2go-stable-xenial.list file that add-apt repository 
creates from xenial to yakkety, then x2go installs but does not work, it gets 
that error like when the session disconnects and you try to reconnect except 
it gets it first time everytime even if you blitz the session database and 
recreate it. But changing it to artful made x2go install on Mint and work. 
So something is

broken with the xenial repository at least as it applies to Mint 18.3, but
artful works.

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On Sat, 10 Mar 2018, Robert Dinse wrote:


Date: Sat, 10 Mar 2018 19:02:31 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails


I still can not install on Mint 18.3


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On Fri, 2 Mar 2018, Robert Dinse wrote:


Date: Fri, 2 Mar 2018 16:49:42 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails


Trying to install x2go stable x2goserver on Ubuntu 17.10 I am getting:

The following packages have unmet dependencies:
x2goserver : Depends: x2goserver-x2goagent (>= 
4.1.0.0-0~1517~ubuntu17.10.1) but it is not going to be installed
 Depends: x2goserver-x2goagent (< 
4.1.0.0-0~1517~ubuntu17.10.1.1~) but it is not going to be installed


... However the Nightly Builds installed and functions fine.



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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 23:25:51 +0100
From: Mihai Moldovan <io...@ionic.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/02/2018 12:18 PM, Stefan Baur wrote:

-After the most resent update:

x2goagent : Depends: nxagent (< 2:3.5.0.33-0~710~ubuntu16.04.1.1)

-however,
nxagent is already the newest version 
(2:3.5.99.14-0~816~ubuntu16.04.1).


Please wait until all the builds have completed, then try again.


Was caused by x2goserver release builds not being ready yet.

All supported platforms should now feature updated x2goserver packages.

The dependency problems should be gone by now.



Mihai




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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 I edited the x2go-stable-xenial.list file that add-apt repository creates 
from xenial to yakkety, then x2go installs but does not work, it gets that 
error like when the session disconnects and you try to reconnect except it gets 
it first time everytime even if you blitz the session database and recreate it. 
But changing it to artful made x2go install on Mint and work.  So something is

broken with the xenial repository at least as it applies to Mint 18.3, but
artful works.

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On Sat, 10 Mar 2018, Robert Dinse wrote:


Date: Sat, 10 Mar 2018 19:02:31 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails


I still can not install on Mint 18.3

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On Fri, 2 Mar 2018, Robert Dinse wrote:


Date: Fri, 2 Mar 2018 16:49:42 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails


Trying to install x2go stable x2goserver on Ubuntu 17.10 I am getting:

The following packages have unmet dependencies:
x2goserver : Depends: x2goserver-x2goagent (>= 
4.1.0.0-0~1517~ubuntu17.10.1) but it is not going to be installed
 Depends: x2goserver-x2goagent (< 
4.1.0.0-0~1517~ubuntu17.10.1.1~) but it is not going to be installed


... However the Nightly Builds installed and functions fine.


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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 23:25:51 +0100
From: Mihai Moldovan <io...@ionic.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/02/2018 12:18 PM, Stefan Baur wrote:

-After the most resent update:

x2goagent : Depends: nxagent (< 2:3.5.0.33-0~710~ubuntu16.04.1.1)

-however,
nxagent is already the newest version (2:3.5.99.14-0~816~ubuntu16.04.1).


Please wait until all the builds have completed, then try again.


Was caused by x2goserver release builds not being ready yet.

All supported platforms should now feature updated x2goserver packages.

The dependency problems should be gone by now.



Mihai




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[X2Go-User] Mint 18.3

[Robert Dinse]

  Trying to install x2go stable on Mint 18.3 and getting this:

apt install x2goserver x2goclient x2gomatebindings x2golxdebindings 
--install-suggests --install-recommends --fix-broken --fix-missing

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 x2goserver : Depends: x2goserver-x2goagent (>= 4.1.0.0-0~1517~ubuntu16.04.1) 
but it is not going to be installed
  Depends: x2goserver-x2goagent (< 4.1.0.0-0~1517~ubuntu16.04.1.1~) 
but it is not going to be installed

E: Unable to correct problems, you have held broken packages.

 I do not undersatnd how it can depend upon a version both less than and
greater than the current version available.

mint sources.list.d # apt list x2goserver-x2goagent
Listing... Done
x2goserver-x2goagent/xenial,xenial 4.1.0.0-0~1517~ubuntu16.04.1 all
mint sources.list.d # apt list nxagent
Listing... Done
nxagent/xenial 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64


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Re: [X2Go-User] nxagent

[Robert Dinse]

 Nothing custom to any of mine which makes it what I want.  Particularly,
when the database gets corrupted, I want to get rid of it and start fresh.

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On Wed, 7 Mar 2018, Stefan Baur wrote:


Date: Wed, 7 Mar 2018 07:46:09 +0100
From: Stefan Baur <x2go-m...@baur-itcs.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] nxagent

Am 07.03.2018 um 01:45 schrieb Robert Dinse:


 What I do:

apt purge nx* libnx* *x2go*


That does not sound clever.
"purge" also removes config files, which may not be what you want,
especially if you made custom changes to any of them.  A simple "remove"
will leave them in place (status "rc" when checking "dpkg -l" output),
so a new installation (no matter which version) can pick up on them.

Anyways, if you're in this mess on a production system, because you
chose to ignore our previous warning [0] about switching to saimaa or
disabling auto-updates, and don't have a proper backup, either, then at
least make sure to back up /etc/x2go/ *before* running a "purge" command.

Kind Regards,
Stefan Baur

[0] http://lists.x2go.org/pipermail/x2go-user/2018-February/004836.html

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Re: [X2Go-User] nxagent

[Robert Dinse]

 What I do:

apt purge nx* libnx* *x2go*
apt autoremove

 Change repos

apt clean all # purge the cache
apt install x2goserver  --install-suggests --install-recommends

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On Tue, 6 Mar 2018, Mario Theodoridis wrote:


Date: Tue, 6 Mar 2018 15:03:52 +0100
From: Mario Theodoridis 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] nxagent

On 06/03/18 14:18, martti pitkanen wrote:


Hi,

Is there hands-on instructions how to downgrade to Saimaa in Ubuntu 
(4.13.0-)?

X2Go sessions terminate in random way.


Yes.

This is what i just did more or less following Stefans advice.


sudo mv x2go-stable-trusty.list x2go-stable-trusty.list.not
sudo add-apt-repository ppa:x2go/saimaa
sudo apt-get update

sudo apt-get remove libnx-x11-6:i386 nxagent nxproxy nx-x11-common x2goclient 
x2goserver* libx2go-log-perl libx2go-server-db-perl libx2go-server-perl 
libxcomp3:i386 libxcompshad3:i386

sudo apt-get install x2goserver x2goserver-xsession

This leaves me with

 dpkg -l | egrep "(x2go|nx)" | sort
ii  libjs-sphinxdoc 1.2.2+dfsg-1ubuntu1.1    all  
JavaScript support for Sphinx documentation
ii  libnx-x11-6:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 client-side library
ii  libnx-xcomposite1:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 Composite extension library
ii  libnx-xdamage1:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 damaged region extension library
ii  libnx-xdmcp6:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 Display Manager Control Protocol library
ii  libnx-xext6:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 miscellaneous extension library
ii  libnx-xfixes3:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 miscellaneous 'fixes' extension library
ii  libnx-xinerama1:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 Xinerama extension library
ii  libnx-xpm4:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  i386 
nx-X11 pixmap library
ii  libnx-xrandr2:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 RandR extension library
ii  libnx-xrender1:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 Rendering Extension client library
ii  libnx-xtst6:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 Testing -- Record extension library
ii  libxcomp3:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  i386 
nx-X11 compression library
ii  libxcompext3:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 protocol compression extensions library
ii  libxcompshad3:i386 2:3.5.0.33-0~201711080756~ubuntu14.04.1  
i386 nx-X11 shadowing library
ii  nxagent 2:3.5.0.33-0~201711080756~ubuntu14.04.1  i386 NX 
agent
ii  nx-x11-common 2:3.5.0.33-0~201711080756~ubuntu14.04.1  all  
nx-X11 (common files)
ii  qtcreator-plugin-qnx:i386 3.0.1+14.04.20140410.1-0ubuntu1  
i386 QNX plugin for Qt Creator IDE
ii  x2goagent 2:3.5.0.33-0~201711080756~ubuntu14.04.1  all  X2Go 
agent
ii  x2goserver 4.0.1.21-0~201711081403~ubuntu14.04.1    i386 X2Go 
server daemon scripts
ii  x2goserver-extensions 4.0.1.21-0~201711081403~ubuntu14.04.1    
all  X2Go server daemon scripts (extensions)
ii  x2goserver-xsession 4.0.1.21-0~201711081403~ubuntu14.04.1    
all  X2Go server daemon scripts (Xsession runner)
rc  libx2go-server-db-perl 4.1.0.0-0~1517~ubuntu14.04.1 
i386 Perl X2Go::Server:DB package
rc  x2goclient 4.1.1.1-0~1719~ubuntu14.04.1 i386 X2Go 
Client application (Qt4)
rc  x2goserver-common 4.1.0.0-0~1517~ubuntu14.04.1 
i386 X2Go Server (common files)
rc  x2goserver-fmbindings 4.1.0.0-0~1517~ubuntu14.04.1 
all  X2Go Server (file manager bindings)
rc  x2goserver-printing 4.1.0.0-0~1517~ubuntu14.04.1 
all  X2Go server (printing support)
rc  x2goserver-x2goagent 4.1.0.0-0~1517~ubuntu14.04.1 
all  X2Go Server's X2Go Agent


Unfortunately i can no longer connect. It connects then disconnects.
This is the session log

$ cat /tmp/.x2go-mario/C-mario-56-1520344207_stDKDE_dp24/session.log

running as X2Go Agent

NXAGENT - Version 3.5.0

Copyright (C) 2001, 2011 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Agent running with pid '6173'.
Session: Starting session at 'Tue Mar  6 14:50:08 2018'.
Info: Proxy running in server mode with pid '6173'.

Re: [X2Go-User] nxagent

[Robert Dinse]

 It hasn't happened to me so I don't know what the people are doing before
it gets stuck, could be mate, kde, lxde, lfce, openbox, they're all on there.
Next time it happens I'll trace it to see what it is doing.

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On Sun, 4 Mar 2018, Mihai Moldovan wrote:


Date: Sun, 4 Mar 2018 09:44:03 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: nxagent

* On 03/04/2018 01:54 AM, Robert Dinse wrote:

  Yes consuming a large amount of CPU and not doing anything useful,
customer is disconnected.  Connection is still possible but doesn't get rid
of the stuck processes, I have to kill -9 to get rid of them.


Uhm... "stuck" is pretty ambiguous in that context - I assume that you are
referring to the CPU usage, which doesn't go down to sane levels even after
reconnecting, but reconnecting to the session as such is possible?

Is there any reasonable way to trigger this behavior? Like starting a MATE
session, disconnecting and waiting for an hour to see the CPU usage spike? Or is
it triggered by other programs running inside of the session?

I'll need something to reproduce it, server OS information would also be great.

There is https://bugs.x2go.org/1260 which sounds like the same issue, but I
haven't had time to get into this yet. This issue is observable on Fedora 27,
but if it's even observable on Debian or Ubuntu or other distros it would also
be interesting information.



Mihai




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Re: [X2Go-User] nxagent

[Robert Dinse]

 Yes consuming a large amount of CPU and not doing anything useful, 
customer is disconnected.  Connection is still possible but doesn't get rid

of the stuck processes, I have to kill -9 to get rid of them.

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On Sun, 4 Mar 2018, Mihai Moldovan wrote:


Date: Sun, 4 Mar 2018 01:42:09 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: nxagent

* On 03/04/2018 01:35 AM, Robert Dinse wrote:

  We are seeing nxagent processes stuck running in a loop when the customer
is no longer logged in.


Stuck in a loop, i.e., using a high amount of CPU resources and not doing
anything useful? Is connecting still possible? Does the usage return to normal
levels after that?


Mihai



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[X2Go-User] nxagent

[Robert Dinse]

 We are seeing nxagent processes stuck running in a loop when the customer
is no longer logged in.

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Re: [X2Go-User] Upgrades

[Robert Dinse]

 If I just leave a session up, after an hour or two it will crash and burn
even if I am not doing anything.  I saw segfaults on mate-panel so I thought
perhaps an issue with Mate and not X2go, so I started a session in LXDE, it
exploded the same way.  If I just remove rather than purge the software, it 
does not fix, so yes, probably related to database.  When it explodes and I

try to reconnect to the session which shows up in the window after I login,
then it wedges.  If instead I terminate this session and start a new one, it
does not wedge.  Rebooting the server does not fix, nor the client, so 
processes left running can't be the issue.  I have ssh sessions with xterms

going into machines at the same location over the same network connections and
they stay up no problem, so it's not a network issue.  For reasons I don't
understand it seems to affect some servers more than others.  I have about an
even split of Redhat baed servers, Centos6/7, Scientific Linux 6/7, Fedora,
and Debian based, Debian, Mint, Ubuntu, and Zorin.  So far this has only
occurred on the Debian based servers.  It has happened on Mint, Ubuntu, and
Zorin thus far.

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On Sat, 3 Mar 2018, Mihai Moldovan wrote:


Date: Sat, 3 Mar 2018 06:16:47 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: Re: Upgrades

* On 03/03/2018 04:45 AM, Robert Dinse wrote:


  I have now had three different machines, a ubuntu server, a mint server,
and a zorin server with the most recent builds installed display very strange
behavior.

  Initially they work, I connect, and at some point during the session,
it disconnects, tells me to check my network.

  I go to reconnect and in the main window it says:

Loop: PANIC! Failure negotiating the session in stage '7'.
Error: Failure negotiating the session in stage '7'.
Loop: PANIC! Wrong version or invalid session authentication cookie.
Error: Wrong version or invalid session authentication cookie.
Session: Terminating session at 'Fri Mar 2 19:06:40 2018'.
Session: Session terminated at  'Fri Mar 2 19:06:40 2018'.

  I also get a POP UP that says:

The remote proxy closed teh connection while negotiating the session. This may
be due to the wrong authentication credentials passed to the server.

  Once it enters this state I can not connect to the server again.
Rebooting both client and server does not fix the problem (and this wipes out
everything in  /tmp and /var/tmp as I have both in tmpfs file systems).

  The only thing I've found that fixes it is completely purging the server
x2go software and re-installing it.


Reinstalling shouldn't change any state, other than maybe reinitializing the
database.

When this happens, are there still x2goagent or nxagent processes around? Do
x2glistsessions_root, x2gogetports, x2gogetdisplays report sane values?


Maybe x2goagent is crashing or otherwise misbehaving.

Is there any known trigger for this?



Mihai



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[X2Go-User] More Details on Wedgeing

[Robert Dinse]

 I have discovered that, when the session disconnects abruptly and I go
to reconnect, if I choose to terminate the session instead of trying to
reconnect to it, then x2goserver does not wedge.

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[X2Go-User] Upgrades

[Robert Dinse]

 I have now had three different machines, a ubuntu server, a mint server,
and a zorin server with the most recent builds installed display very strange
behavior.

 Initially they work, I connect, and at some point during the session,
it disconnects, tells me to check my network.

 I go to reconnect and in the main window it says:

Loop: PANIC! Failure negotiating the session in stage '7'.
Error: Failure negotiating the session in stage '7'.
Loop: PANIC! Wrong version or invalid session authentication cookie.
Error: Wrong version or invalid session authentication cookie.
Session: Terminating session at 'Fri Mar 2 19:06:40 2018'.
Session: Session terminated at  'Fri Mar 2 19:06:40 2018'.

 I also get a POP UP that says:

The remote proxy closed teh connection while negotiating the session. This may 
be due to the wrong authentication credentials passed to the server.


 Once it enters this state I can not connect to the server again. 
Rebooting both client and server does not fix the problem (and this wipes out

everything in  /tmp and /var/tmp as I have both in tmpfs file systems).

 The only thing I've found that fixes it is completely purging the server
x2go software and re-installing it.

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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Trying to install x2go stable x2goserver on Ubuntu 17.10 I am getting:

The following packages have unmet dependencies:
 x2goserver : Depends: x2goserver-x2goagent (>= 4.1.0.0-0~1517~ubuntu17.10.1) 
but it is not going to be installed
  Depends: x2goserver-x2goagent (< 4.1.0.0-0~1517~ubuntu17.10.1.1~) 
but it is not going to be installed


 ... However the Nightly Builds installed and functions fine.

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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 23:25:51 +0100
From: Mihai Moldovan 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/02/2018 12:18 PM, Stefan Baur wrote:

-After the most resent update:

x2goagent : Depends: nxagent (< 2:3.5.0.33-0~710~ubuntu16.04.1.1)

-however,
nxagent is already the newest version (2:3.5.99.14-0~816~ubuntu16.04.1).


Please wait until all the builds have completed, then try again.


Was caused by x2goserver release builds not being ready yet.

All supported platforms should now feature updated x2goserver packages.

The dependency problems should be gone by now.



Mihai




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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Ok, wasn't sure, that's why I asked.  Thank you.

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On Sat, 3 Mar 2018, Mihai Moldovan wrote:


Date: Sat, 3 Mar 2018 00:43:38 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/03/2018 12:37 AM, Robert Dinse wrote:

  Question: It appears that the various libs in lib-nx that used to be
separate deb packages on Ubuntu/Debian, etc, have been replaces with a single
nx-11-common package, is this correct?


Nope, wrong.

-common packages, as always in Ubuntu/Debian context, only contain shared,
architecture-independent data.

The libraries that have been removed from the new nx-libs package are really
gone. nx-libs (and in particular nxagent) now uses more system libraries instead
of bundling older versions itself.

So seeing less packages being installed is correct.



Mihai



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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Since the most recent update to Fedora X2Go Server, Mate Session Logout
no longer works.  It removes the panels and applications but leaves the
background and connection up and the only way I can terminate it is to use
the Session->Terminate function from the X2Go client.

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On Sat, 3 Mar 2018, Mihai Moldovan wrote:


Date: Sat, 3 Mar 2018 00:43:38 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/03/2018 12:37 AM, Robert Dinse wrote:

  Question: It appears that the various libs in lib-nx that used to be
separate deb packages on Ubuntu/Debian, etc, have been replaces with a single
nx-11-common package, is this correct?


Nope, wrong.

-common packages, as always in Ubuntu/Debian context, only contain shared,
architecture-independent data.

The libraries that have been removed from the new nx-libs package are really
gone. nx-libs (and in particular nxagent) now uses more system libraries instead
of bundling older versions itself.

So seeing less packages being installed is correct.



Mihai



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Re: [X2Go-User] LinuxMint 18.3 upgrade fails

[Robert Dinse]

 Question: It appears that the various libs in lib-nx that used to be
separate deb packages on Ubuntu/Debian, etc, have been replaces with a single
nx-11-common package, is this correct?

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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 23:25:51 +0100
From: Mihai Moldovan 
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] LinuxMint 18.3 upgrade fails

* On 03/02/2018 12:18 PM, Stefan Baur wrote:

-After the most resent update:

x2goagent : Depends: nxagent (< 2:3.5.0.33-0~710~ubuntu16.04.1.1)

-however,
nxagent is already the newest version (2:3.5.99.14-0~816~ubuntu16.04.1).


Please wait until all the builds have completed, then try again.


Was caused by x2goserver release builds not being ready yet.

All supported platforms should now feature updated x2goserver packages.

The dependency problems should be gone by now.



Mihai




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Re: [X2Go-User] SSH

[Robert Dinse]

 Well, I just built the latest and greatest ssh:
OpenSSH_7.6p1, OpenSSL 1.0.2g  1 Mar 2016 and that fixed the segfault but
did not fix the x2go error.

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On Fri, 2 Mar 2018, Robert Dinse wrote:


Date: Fri, 2 Mar 2018 02:40:09 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: "x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: [X2Go-User] SSH


Looks like my ssh is hurt:

[256092.528160] SshMasterConnec[4630]: segfault at dd ip 7fc61a459eec sp 
7fc5ee2b8928 error 4 in libssh.so.4.4.2[7fc61a433000+6d000]


[256163.639990] SshMasterConnec[5083]: segfault at dd ip 7fa0a3453eec sp 
7fa0772ee928 error 4 in libssh.so.4.4.2[7fa0a342d000+6d000]


This might be my issue rather than x2go, but it never happens when I do
a straight ssh session.

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[X2Go-User] SSH

[Robert Dinse]

 Looks like my ssh is hurt:

[256092.528160] SshMasterConnec[4630]: segfault at dd ip 7fc61a459eec sp 
7fc5ee2b8928 error 4 in libssh.so.4.4.2[7fc61a433000+6d000]


[256163.639990] SshMasterConnec[5083]: segfault at dd ip 7fa0a3453eec sp 
7fa0772ee928 error 4 in libssh.so.4.4.2[7fa0a342d000+6d000]


 This might be my issue rather than x2go, but it never happens when I do
a straight ssh session.

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[X2Go-User] Mint now Ubuntu

[Robert Dinse]

 I updated a Ubuntu system with nightly builds and now it is doing the
same as Mint but only if I login as root.  If I login with a normal UID it
does not.

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Re: [X2Go-User] Mint

[Robert Dinse]

 The client OS is Ubuntu-Mate 17.10.

cups-x2go/artful,artful,now 3.0.1.4-0~140~ubuntu17.10.1 all 
[installed,automatic]
libx2go-log-perl/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]
libx2go-server-db-perl/artful,now 4.1.0.1-0~1606~ubuntu17.10.1 amd64 
[installed,automatic]
libx2go-server-perl/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]
pinentry-x2go/artful,now 0.7.5.10-0~106~ubuntu17.10.1 amd64 
[installed,automatic]

x2goclient/artful,now 4.1.1.2-0~1724~ubuntu17.10.1 amd64 [installed]
x2golxdebindings/artful,artful,now 1.0.2.5-0~74~ubuntu17.10.1 all [installed]
x2gomatebindings/artful,now 0.0.1.6-0~204~ubuntu17.10.1 amd64 [installed]
x2goserver/artful,now 4.1.0.1-0~1606~ubuntu17.10.1 amd64 [installed]
x2goserver-common/artful,now 4.1.0.1-0~1606~ubuntu17.10.1 amd64 
[installed,automatic]
x2goserver-extensions/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]
x2goserver-fmbindings/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]
x2goserver-printing/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]
x2goserver-x2goagent/artful,now 4.1.0.1-0~1606~ubuntu17.10.1 amd64 
[installed,automatic]
x2goserver-xsession/artful,artful,now 4.1.0.1-0~1606~ubuntu17.10.1 all 
[installed,automatic]


 The x2go client is connecting with other servers okay.

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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 08:20:07 +0100
From: Mihai Moldovan <io...@ionic.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Mint

* On 03/02/2018 07:37 AM, Robert Dinse wrote:


  The output of:

dpkg -l | grep -iE '(x2go|nx)'?

  ... Was too large to post to the list so I've thrown it up on my ftp
server, you can retrieve it from ftp.eskimo.com, username: anonymous,
password: (your e-mail address).  It is x2go-mint.txt.


Naturally without the ? character at the end, but in any case, you're on the
release version.

Hmm, that error message is weird. It indicates that the remote proxy sent
garbage, while the other side expected a version number.

What's the client OS? What packages are used there?



Mihai



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[X2Go-User] Mint

[Robert Dinse]

 The output of:

dpkg -l | grep -iE '(x2go|nx)'?

 ... Was too large to post to the list so I've thrown it up on my ftp
server, you can retrieve it from ftp.eskimo.com, username: anonymous,
password: (your e-mail address).  It is x2go-mint.txt.

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Re: [X2Go-User] Mint

[Robert Dinse]

 I just did:

apt purge *x2go* nx* libnx*

 Followed by:

apt install x2goserver --install-suggests --install-recommends

 And still get that same pop-up.  This is on:

NAME="Linux Mint"
VERSION="18.3 (Sylvia)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 18.3"
VERSION_ID="18.3"
HOME_URL="http://www.linuxmint.com/;
SUPPORT_URL="http://forums.linuxmint.com/;
BUG_REPORT_URL="http://bugs.launchpad.net/linuxmint/;
VERSION_CODENAME=sylvia
UBUNTU_CODENAME=xenial

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On Fri, 2 Mar 2018, Mihai Moldovan wrote:


Date: Fri, 2 Mar 2018 06:53:19 +0100
From: Mihai Moldovan <io...@ionic.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Mint

* On 03/02/2018 12:53 AM, Robert Dinse wrote:

  The nightly builds won't install and the stable doesn't work.  When I
try to login I get a pop-up:

The remote proxy closed the connection while negotiating
the session. This may be due to the wrong authentication
credentials passed to the server.


Is this still a problem?

I've fixed it up yesterday already for Debian, Fedora, CentOS, ... builds.

Launchpad reportedly built new packages 3 hours ago, I guess I should have
kicked that earlier but forgot.



Mihai



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[X2Go-User] Mint

[Robert Dinse]

 The nightly builds won't install and the stable doesn't work.  When I
try to login I get a pop-up:

The remote proxy closed the connection while negotiating
the session. This may be due to the wrong authentication
credentials passed to the server.

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[X2Go-User] Fedora

[Robert Dinse]

  After todays Fedora updates, the Nightly Builds of x2goserver no longer
works.  It starts up and then immediately exits, the mate-session crashes.
Yet Mate does not crash under the stable build but also does not set the screen
size properly owing to the xrandr version issue.

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[X2Go-User] Nightly Builds Ubuntu Broken

[Robert Dinse]

 Updates broke on every Ubuntu server I have x2go nightly builds installed
upon.  It ends with:

dpkg: error processing package x2goserver-fmbindings (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 x2goserver
 x2goserver-extensions
 x2goserver-printing
 x2goserver-xsession
 x2goserver-fmbindings

 And a non-functional server though many more errors leading up to that.
If you need the full dialogue let me know.

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Re: [X2Go-User] Fedora 27 and loginctl linger

[Robert Dinse]

 I can't even get it to install on Centos 7, gettng this:

--> Finished Dependency Resolution
Error: Package: 
perl-X2Go-Server-DB-4.1.0.1-0.0x2go1.0.git20180228.1604.heuler.el7.centos.x86_64 
(x2go-nightly-epel)

   Requires: perl(X2Go::Server::DB::MySQL)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest


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On Thu, 1 Mar 2018, Norman Gaywood wrote:


Date: Thu, 1 Mar 2018 14:11:39 +1100
From: Norman Gaywood 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Fedora 27 and loginctl linger

It seems that 'loginctl linger' does not work anymore as an ordinary user
on Fedora 27. This worked on Fedora 26.

From: https://bugzilla.redhat.com/show_bug.cgi?id=1478974#c15

On Fedora 27 it seems that enable-linger does not work as an ordinary user
which is required for x2goserver keep sessions alive.

Inside an x2go session:

$ loginctl enable-linger
Failed to look up user 62: No such process

and (as root) "loginctl show-user ngaywood" shows:

Linger=no

As root I can:

loginctl enable-linger ngaywood

and Linger will be set.

This used to work in Fedora 26

x2goserver-4.0.1.22-0.0x2go1.1.git20180204.1197.main.fc27.x86_64

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[X2Go-User] Nightly Builds Exploded

[Robert Dinse]

 I know this is a hazard of using nightly builds but the stable does not
have the right version of xrandr.  Is there anything I can do to fix or do I
just need to wait for another push?

dpkg --configure x2goserver
Setting up x2goserver (4.1.0.1-0x2go1~git20180301.1604+9.heuler.1) ...
Job for x2goserver.service failed because the control process exited with error 
code.

See "systemctl status x2goserver.service" and "journalctl -xe" for details.
invoke-rc.d: initscript x2goserver, action "start" failed.
● x2goserver.service - X2Go Server Daemon
   Loaded: loaded (/lib/systemd/system/x2goserver.service; enabled; vendor 
preset: enabled)
   Active: failed (Result: exit-code) since Wed 2018-02-28 18:16:37 PST; 3ms 
ago

  Process: 16339 ExecStart=/usr/sbin/x2gocleansessions (code=exited, status=2)
 Main PID: 906 (code=exited, status=0/SUCCESS)

Feb 28 18:16:37 debian systemd[1]: Starting X2Go Server Daemon...
Feb 28 18:16:37 debian x2gocleansessions[16339]: Can't locate 
X2Go/Server/DB/MySQL.pm in @INC (you may need to install the 
X2Go::Server::DB::MySQL module…2.
Feb 28 18:16:37 debian x2gocleansessions[16339]: BEGIN failed--compilation 
aborted at /usr/share/perl5/X2Go/Server/DB.pm line 42.
Feb 28 18:16:37 debian x2gocleansessions[16339]: Compilation failed in require 
at /usr/sbin/x2gocleansessions line 34.
Feb 28 18:16:37 debian x2gocleansessions[16339]: BEGIN failed--compilation 
aborted at /usr/sbin/x2gocleansessions line 34.
Feb 28 18:16:37 debian systemd[1]: x2goserver.service: Control process exited, 
code=exited status=2

Feb 28 18:16:37 debian systemd[1]: Failed to start X2Go Server Daemon.
Feb 28 18:16:37 debian systemd[1]: x2goserver.service: Unit entered failed 
state.
Feb 28 18:16:37 debian systemd[1]: x2goserver.service: Failed with result 
'exit-code'.

Hint: Some lines were ellipsized, use -l to show in full.
dpkg: error processing package x2goserver (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 x2goserver


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[X2Go-User] x2go on Zorin

[Robert Dinse]

 The daily build formerly was working on Zorin, save for the xrandr issue.
Now it is failing with:

Loop: PANIC! Failure negotiating the session in stage '7'.
Error: Failure negotiating the session in stage '7'.
Loop: PANIC! Wrong version or invalid session authentication cookie.
Error: Wrong version or invalid session authentication cookie.
Session: Terminating session at 'Mon Feb 26 23:28:49 2018'.
Session: Session terminated at 'Mon Feb 26 23:28:49 2018'.
Connection timeout, abortingConnection timeout,

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[X2Go-User] X2go on Zorin

[Robert Dinse]

 The stable build of x2go presently works on Zorin except xrandr version
issues but the Nightly Builds does not.  Nightly builds nxagent core dumps
when the session tries to start.  Got to go now but will provide more details,
try to get a backtrace if I can, later when I get back.

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Re: [X2Go-User] unable to start Qt/KDE apps under x2go

[Robert Dinse]

  Can you give a specific example of an app and what it does under x2go?
I can try to replicate here.  Not aware of any issues and have been using x2go
for quite a while.

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On Fri, 23 Feb 2018, Bernd Schubert wrote:


Date: Fri, 23 Feb 2018 12:32:45 +0100
From: Bernd Schubert <bs_li...@aakef.fastmail.fm>
To: Robert Dinse <nan...@eskimo.com>, x2go users <x2go-user@lists.x2go.org>
Subject: Re: [X2Go-User] unable to start Qt/KDE apps under x2go

Hmm, yes, xwayland is installed, but I didn't update it yet to the
version on bionic. For me it seems to be a pure qt issue on ubuntu 17.10.

On 02/23/2018 12:47 AM, Robert Dinse wrote:


 I just apt install Xorg; apt remove Xwayland, didn't mess with any
of the Qt install.

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On Fri, 23 Feb 2018, Bernd Schubert wrote:


Date: Fri, 23 Feb 2018 00:32:04 +0100
From: Bernd Schubert <bs_li...@aakef.fastmail.fm>
To: Robert Dinse <nan...@eskimo.com>
Subject: Re: [X2Go-User] unable to start Qt/KDE apps under x2go



On 02/22/2018 11:51 PM, Robert Dinse wrote:


 I'm running 17.10 but not Unity, been working fine for me.  I do
not
use Wayland however, I am using Xorg.  Bionic also moved back to Xorg,
so that
may be your issue.


Which part does this? I have seen qtwayland, but didn't have it installed

Thanks,
Bernd

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Re: [X2Go-User] Attention: All X2Go Server Admins! Upcoming major X2Go (Server) Release

[Robert Dinse]

 I've been using Nightly Builds on Fedora, OpenSuse, Debian, and Ubuntu
on account of the xrandr version issues on these machines for some time, so far
so good.

 I'm trying to get x2go to work on Zorin but so far I've not been able to
get either stable or nightly builds to work, both exit but no error messages
on either the server or client side are logged to give a clue.

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On Fri, 23 Feb 2018, Stefan Baur wrote:


Date: Fri, 23 Feb 2018 08:20:00 +0100
From: Stefan Baur 
Reply-To: x2go-proj...@lists.x2go.org
To: "x2go-user@lists.x2go.org" ,
"x2go-...@lists.x2go.org" ,
x2go-proj...@lists.x2go.org, x2go-announceme...@lists.x2go.org
Subject: [X2Go-User] Attention: All X2Go Server Admins! Upcoming major X2Go
(Server) Release

Hi!

We would like to inform you that a new X2Go stable version is about to
be released, most likely around March 1st, 2018.

In fact, the release is already ready - we are actively holding back the
binary package builds at the moment so you have a chance to react.

If you have set all your servers to automatically update to new
releases, we suggest that you disable this mechanism now until you have
verified that the new version works for you.

If, on the other hand, you test and deploy updates manually, no change
is required.  Please test the new X2Go stable version as soon as it
becomes available, so that we have a chance to fix any remaining issues
that slipped through our testing early on.

Should you encounter major problems with the new version, we suggest
switching to the ESR branch, codenamed "saimaa".  This branch will
continue to receive security updates, but is (and will remain) based on
what you currently know as "stable".  Some packages, like cups-x2go,
pinentry-x2go, x2godesktopsharing, x2go*bindings, are not part of saimaa
and thus must be pulled from the regular repository.  This requires
proper setting of repository priorities, so packages existing in the
saimaa repository take priority over packages from the regular
repository.  If you need assistance with this, please make sure you have
disabled automatic updates before doing anything else, then ask for help
either in our IRC channel #x2go on freenode, or on the x2go-user Mailing
List.

However, if you are a daredevil and already want to access binary
packages that pretty much match what we are going to release soon,
temporarily change your X2Go repository entry to the timestamped heuler
repository bearing the timestamp of 2018-02-16, pull the update, then
switch your repository back to stable.  Note that this is a procedure
not recommended for the average user.  Try and use at your own risk.

Kind Regards,
Stefan Baur

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Re: [X2Go-User] Gnome 3 and X2go

[Robert Dinse]

 Thanks will give that a try.

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On Wed, 31 Jan 2018, Mike Gabriel wrote:


Date: Wed, 31 Jan 2018 19:34:44 +
From: Mike Gabriel <mike.gabr...@das-netzwerkteam.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Gnome 3 and X2go

On  Mo 29 Jan 2018 01:28:57 CET, Robert Dinse wrote:


When gnome3 first came out I was unsuccessful at getting it to work with
x2go.  However, I just tried installing gnome-flashback and gave it another 
shot, now it mostly works except I can find no way of logging out except to
kill the gnome-flashback process.  Am I missing something that should be 
installed or is it broken this way?


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in old days, it was

gnome-session-save --logout

from a terminal. This you could add as a panel shortcut button if all other 
approaches fail.


Mike
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[X2Go-User] Gnome 3 and X2go

[Robert Dinse]

 When gnome3 first came out I was unsuccessful at getting it to work with
x2go.  However, I just tried installing gnome-flashback and gave it another 
shot, now it mostly works except I can find no way of logging out except to
kill the gnome-flashback process.  Am I missing something that should be 
installed or is it broken this way?


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Re: [X2Go-User] can't connect to session

[Robert Dinse]

 Is okay.  That's what we have facebook for :0

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On Wed, 24 Jan 2018, Stefan Baur wrote:


Date: Wed, 24 Jan 2018 08:43:20 +0100
From: Stefan Baur <x2go-m...@baur-itcs.de>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] can't connect to session

*ahem*

I am one of the list-admins, and as much as I loathe SystemD, I would
like to remind *everyone* reading this that having a love/hate SystemD
thread on here is bound to end in a flamewar, so let's stop here before
this ends in chaos.

Thank you.

Kind Regards,
Stefan Baur

PS: Robert, your tone was civil, so don't take this as personal
criticism or public shaming, it's a general reminder to *everyone*.

Am 24.01.2018 um 08:36 schrieb Robert Dinse:


 Yes, you gotta love systemd.  There is an upside though, it's about
two seconds between the time my BIOS fires off the boot block and I've
got a
desktop login screen, under the old start up system it was more like 30
seconds.

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On Wed, 24 Jan 2018, Mihai Moldovan wrote:


Date: Wed, 24 Jan 2018 07:36:24 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Andrew Munn <and...@nmedia.net>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] can't connect to session

* On 01/22/2018 10:28 PM, Andrew Munn wrote:

Thanks!
I've added the following line to /usr/lib/tmpfiles.d/tmp.conf

x /tmp/.x2go-*

Hopefully that fixes it.


Then again, according to
https://developers.redhat.com/blog/2016/09/20/managing-temporary-files-with-systemd-tmpfiles-on-rhel7/

and the general file system hierarchy, /usr/lib is not a good place to
make changes.

Thankfully you should be able to move this into
/etc/tmpfiles.d/x2go.conf and
have that setting persist between system updates.



Do you think there should be some automated
process to append that line during installation on a CentOS/RHEL system?


Yes, I should add this file to the general packaging! It's impressive
how many
workarounds are necessary for systemd in order for it not to break
everything...



Mihai



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Re: [X2Go-User] can't connect to session

[Robert Dinse]

 Yes, you gotta love systemd.  There is an upside though, it's about
two seconds between the time my BIOS fires off the boot block and I've got a
desktop login screen, under the old start up system it was more like 30 
seconds.


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On Wed, 24 Jan 2018, Mihai Moldovan wrote:


Date: Wed, 24 Jan 2018 07:36:24 +0100
From: Mihai Moldovan 
To: Andrew Munn 
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] can't connect to session

* On 01/22/2018 10:28 PM, Andrew Munn wrote:

Thanks!
I've added the following line to /usr/lib/tmpfiles.d/tmp.conf

x /tmp/.x2go-*

Hopefully that fixes it.


Then again, according to
https://developers.redhat.com/blog/2016/09/20/managing-temporary-files-with-systemd-tmpfiles-on-rhel7/
and the general file system hierarchy, /usr/lib is not a good place to make 
changes.

Thankfully you should be able to move this into /etc/tmpfiles.d/x2go.conf and
have that setting persist between system updates.



Do you think there should be some automated
process to append that line during installation on a CentOS/RHEL system?


Yes, I should add this file to the general packaging! It's impressive how many
workarounds are necessary for systemd in order for it not to break everything...



Mihai



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Re: [X2Go-User] What are athe difference between connexions

[Robert Dinse]

 You can use xrandr to set the screen size:

xrandr -s 1440x900

 It may not go to that size, it will only set to predefined screen sizes
that way.

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On Fri, 19 Jan 2018, Alain Aupeix wrote:


Date: Fri, 19 Jan 2018 22:07:39 +0100
From: Alain Aupeix 
To: "x2go-user@lists.x2go.org" 
Subject: [X2Go-User]  What are athe difference between connexions

Hi,

When I open a session from my desktop (1280x1024) on a notepad which >has a 
screen of 1440x900) with x11vnc, I apply a correction of the >screen size 
(about 0.88 for this computer) to have a complete display >of the server 
screen.


Is there a way to do such thing with x2go ?
I have found the .x2goclient/sizes.



[mainwindow]
size=@Size(1175 747)
pos=@Point(94 113)
maximized=false


Can I change it in this file or is it better to change it in 
.x2goclient/sessions ?

--
Hi,

My tests with sizes ou sessions fail.

I have found another way with wmctrl

for the size:
wmctrl -e 0,10,70,1268,792 -r alain@aupeix-GX723

for the title
wmctrl -r alain@aupeix-GX723 -N "x2go: alain@aupeix-GX723"
A+
--

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http://jujuland.pagesperso-orange.fr/
http://pissobi-lacassagne.pagesperso-orange.fr/

U.buntu 12.04 & Xu.buntu 16.04 | G.ramps 3.4.9-1 | H.arbour 3.2.0dev 
(2018-01-05 14:38) | Hw.Gui (2639)


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Re: [X2Go-User] x2go local desktop connection on rpi

[Robert Dinse]

 I have found this not only happens with x2go but also with nx and vnc
and I believe it has to do with systemd sessions.

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On Fri, 19 Jan 2018, Ulrich Sibiller wrote:


Date: Fri, 19 Jan 2018 21:20:10 +0100
From: Ulrich Sibiller <ul...@gmx.de>
To: Robert Dinse <nan...@eskimo.com>
Cc: RW <garlicbre...@googlemail.com>, x2go users <x2go-user@lists.x2go.org>
Subject: Re: [X2Go-User] x2go local desktop connection on rpi

On Fri, Jan 19, 2018 at 3:45 PM, Robert Dinse <nan...@eskimo.com> wrote:


 This is I think an issue with Ubuntu, it won't allow two graphical
logins
from same user on same machine, but if you originate with a different UID
than you connect with it is okay.


The relevant information is probably in the server side session log
(/tmp/.x2go-/C--.*/session.log. You
should find the reason why the connect did fail.

I would also suggest switching to nx 3.5.99.13 which offers the
tolerancechecks (see man nxagent) option to make reconnects possible
where 3.5.0 simply does not allow them. Here's how:
https://wiki.x2go.org/doku.php/doc:howto:nx-libs-betatesting

You'd have to suspend your session, then edit
/tmp/.x2go-/C-../options (add the
tolerancechecks= option), then try to reconnect.

Uli


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Re: [X2Go-User] x2go local desktop connection on rpi

[Robert Dinse]

 This is I think an issue with Ubuntu, it won't allow two graphical logins
from same user on same machine, but if you originate with a different UID
than you connect with it is okay.

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On Wed, 17 Jan 2018, RW wrote:


Date: Wed, 17 Jan 2018 20:05:08 +
From: RW 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] x2go local desktop connection on rpi

Hi,

I've recently been trying to use X2go to connect to a Rpi3 running the
latest ubuntu mate 17.10
This seems to work when selecting xfce or a new session
but doesn't work when trying to connect to the local desktop (which is
already logged in)
I even tried installing / running x2godesktopsharing on the server side
then enabling shared desktop, but that didn't have any affect (I think
that's only needed for different users normally)

 * client - Windows 10 / latest X2go client 4.1.0.0
 * server - Rpi3 / Ubuntu Mate / latest x2goserver
4.0.1.22-0~1197~ubuntu17.10.1

It just seems to jump out with the following message on the client
"The connection with the remote server was shut down. Please check the
state of your network connection"

 * I was able to rule out the client as the problem by connecting from
windows to a x64 gentoo vm / local desktop vm which worked fine on the
local desktop setting (same version 4.0.1.22 server)
 * I also tried connecting from a linux client to the rpi but with same
results
 * For the rpi as the server, this only seems to affect connections to the
local desktop, connections using a new session in the drop down work okay

Logs attached below
any ideas on how to get this going?
one difference I've spotted with a working setup is the message "state file
for this session does not exist" in the server logs

client log:

NXPROXY - Version 3.5.0

Copyright (C) 2001, 2010 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '6540'.
Session: Starting session at 'Wed Jan 17 19:28:20 2018'.
Info: Connecting to remote host 'localhost:62654'.
Info: Connection to remote proxy 'localhost:62654' established.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent
session.
Warning: Failed to read data from the X auth command.
Warning: Generated a fake cookie for X authentication.
Info: Using ADSL link parameters 512/24/1/0.
Info: Using cache parameters 4/4096KB/8192KB/8192KB.
Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 4/4.
Info: No suitable cache file found.
Info: Forwarding X11 connections to display 'localhost:0'.
Session: Session started at 'Wed Jan 17 19:28:20 2018'.
Info: Established X server connection.
Info: Using shared memory parameters 0/0K.
Session: Terminating session at 'Wed Jan 17 19:32:30 2018'.
Session: Session terminated at 'Wed Jan 17 19:32:30 2018'.

NXPROXY - Version 3.5.0

Copyright (C) 2001, 2010 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '11024'.
Session: Starting session at 'Wed Jan 17 19:34:34 2018'.
Info: Connecting to remote host 'localhost:46131'.
Info: Connection to remote proxy 'localhost:46131' established.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent
session.
Warning: Failed to read data from the X auth command.
Warning: Generated a fake cookie for X authentication.
Info: Using ADSL link parameters 512/24/1/0.
Info: Using cache parameters 4/4096KB/8192KB/8192KB.
Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 4/4.
Info: No suitable cache file found.
Info: Forwarding X11 connections to display 'localhost:0'.
Session: Session started at 'Wed Jan 17 19:34:34 2018'.
Info: Established X server connection.
Info: Using shared memory parameters 0/0K.
Error: Failure reading from the peer proxy.
Error: Connection with remote peer broken.
Error: Please check the state of your network and retry.
Session: Terminating session at 'Wed Jan 17 19:34:34 2018'.
Session: Session terminated at 'Wed Jan 17 19:34:34 2018'.

NXPROXY - Version 3.5.0

Copyright (C) 2001, 2010 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '13288'.
Session: Starting session at 'Wed Jan 17 19:50:31 2018'.
Info: Connecting to remote host 'localhost:58149'.
Info: Connection to remote proxy 'localhost:58149' established.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type