Hi Brian,
I had the same problem using plasma.
This is because the generated ssh key includes a no-pty option.
I don't know where this key is generated, so I "hacked"
/usr/lib/x2go/x2gobroker-agent.pl on every server and added
$pubkey =~ s/no-pty,//;
on the beginning of AddAuthKey() and DelAuthKey() functions right before
the line
$authkeyfile =~ s/%u/$uid/;
This removes this option from the key and works fine.
Keep in mind you have to do this after every update of x2go server software.
Maybe someone can tell us where the key is generated (I assume in the
client executable?) - or even better - if there is a configuration flag
for no-pty?
Greetings
Martin
Am 18.01.22 um 15:33 schrieb Brian Sanders:
Actually, I also turned on debug on the client, and it seems to
indicate that I do auth, but am refused PTY access.
2go-DEBUG-../src/httpbrokerclient.cpp:684> Starting parser.
x2go-DEBUG-../src/httpbrokerclient.cpp:703> Server IP address:
"192.168.56.228"
x2go-DEBUG-../src/httpbrokerclient.cpp:704> Server port: "22"
x2go-DEBUG-../src/onmainwindow.cpp:3695> Server: "192.168.56.228"
x2go-INFO-8> "Starting connection to server: 192.168.56.228:22
<http://192.168.56.228:22>"
x2go-DEBUG-../src/onmainwindow.cpp:2853> Starting new ssh connection
to server:"192.168.56.228":"22" krbLogin: false
x2go-DEBUG-../src/sshmasterconnection.cpp:168> SshMasterConnection,
host "192.168.56.228"; port 22; user "brians"; useproxy false;
proxyserver ""; proxyport 22
x2go-DEBUG-../src/sshmasterconnection.cpp:248> Starting SSH connection
without Kerberos authentication.
x2go-DEBUG-../src/sshmasterconnection.cpp:250> SshMasterConnection,
instance SshMasterConnection(0x7f05c0007c50) created.
x2go-DEBUG-../src/httpbrokerclient.cpp:717> Parsing has finished.
x2go-DEBUG-../src/sshmasterconnection.cpp:495> SshMasterConnection,
instance SshMasterConnection(0x7f05c0007c50) entering thread.
x2go-DEBUG-../src/sshmasterconnection.cpp:797> Session port before
config file parse: 22
x2go-DEBUG-../src/sshmasterconnection.cpp:807> Session port after
config file parse: 22
x2go-DEBUG-../src/sshmasterconnection.cpp:870> Session port before
config file parse (part 2): 22
x2go-DEBUG-../src/sshmasterconnection.cpp:880> Session port after
config file parse (part 2): 22
x2go-DEBUG-../src/sshmasterconnection.cpp:904> cserverAuth
x2go-DEBUG-../src/sshmasterconnection.cpp:943> state: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1324> Trying to authenticate
user with private key.
x2go-DEBUG-../src/sshmasterconnection.cpp:1340> Temporarily saved key
in "/home/brians/.x2go/ssh/gen/key.DkiWvu"
x2go-DEBUG-../src/sshmasterconnection.cpp:1507> Authenticating with key: 0
x2go-DEBUG-../src/sshmasterconnection.cpp:687> User authentication OK.
x2go-DEBUG-../src/sshmasterconnection.cpp:1671>
"ssh_channel_request_pty failed": "Channel request pty-req failed"
I do in fact allow PTY in the sshd_config, however doesn't the broker
disallow this with the key that it adds? I see it adding the key with
"no-X11-forwarding,no-pty,no-user-rc". So is this not the key that
gets used, and I still have some sshd_config settings somewhere, or do
I have to tell the broker to allow this and it will update the key's
settings?
On Tue, Jan 18, 2022 at 8:52 AM Brian Sanders
<brian.sand...@gmail.com> wrote:
I am trying to get the broker to work with the auto login feature,
and I can't seem to get it to work. I am using an ansible
playbook and building a broker, and then 2 workstations. I setup
wks1 to autologin and wks2 with out. I can use wks2 just fine,
but when I try and use wk1, It seems the new key is added, and the
workstation indicates that it accepts a session for my user.
However the X2go client then shows me a login/password box rather
than logging me into the session.
I have logs from the server and the workstation, can someone help
point me in the right direction?
Session configuration:
[DEFAULT]
command=TERMINAL
defsndport=true
useiconv=false
iconvfrom=UTF-8
height=600
width=800
export=
quality=9
fullscreen=false
layout=
useexports=true
speed=2
soundsystem=pulse
print=true
type=auto
sndport=4713
xinerama=true
variant=
usekbd=true
fstunnel=true
applications=TERMINAL,WWWBROWSER,MAILCLIENT,OFFICE
multidisp=false
sshproxyport=22
sound=true
rootless=true
iconvto=UTF-8
soundtunnel=true
dpi=96
sshport=22
setdpi=0
pack=16m-jpeg
directrdp=false
user=BROKER_USER
[[wks1]]
acl-groups-allow=test_group
broker-session-autologin=true
command=xfce
host=192.168.56.228
name=Molecule Wks1
[[wks2]]
command=xfce
host=192.168.56.229
name=Molecule Wks2
Broker logs:
==> /var/log/x2gobroker/broker.log <==
2022-01-18 13:45:07,395 - broker - INFO - client address is
192.168.56.1
2022-01-18 13:45:07,397 - broker - DEBUG - broker_username:
brians, server_username: brians, password: XXXXX, task:
selectsession, profile_id: [wks1, cookie:
83ddbd2d-c4ca-4f22-bb0b-b3629d522fc5
2022-01-18 13:45:07,397 - broker - DEBUG -
base_broker.X2GoBroker.check_access(): checking if our configured
cookie was submitted: False
2022-01-18 13:45:07,397 - broker - DEBUG -
base_broker.X2GoBroker.check_access(): found valid auth key for
user cookie: brians_83ddbd2d-c4ca-4f22-bb0b-b3629d522fc5
2022-01-18 13:45:07,398 - broker - DEBUG -
base_broker.X2GoBroker.check_access(): Giving cookie:
0ca4bea5-f216-4f59-ae6b-1e103243814e to ip 192.168.56.1
2022-01-18 13:45:07,402 - broker - DEBUG -
base_broker.X2GoBroker.get_agent_query_mode(): found
default-agent-query-mode in global config section: ssh
2022-01-18 13:45:07,407 - broker - DEBUG -
base_broker.X2GoBroker.get_agent_hostkey_policy(): found
default-agent-hostkey-policy in global config section: WarningPolicy
2022-01-18 13:45:07,475 - broker - INFO - Executing agent command
on remote host 192.168.56.228 (192.168.56.228): sh -c
'/usr/lib/x2go/x2gobroker-agent foo ping'
2022-01-18 13:45:08,258 - broker - INFO - Broker agent answered: OK;
2022-01-18 13:45:08,304 - broker - INFO - Executing agent command
on remote host 192.168.56.228 (192.168.56.228): sh -c
'/usr/lib/x2go/x2gobroker-agent brians listsessions'
2022-01-18 13:45:09,164 - broker - INFO - Broker agent answered: OK;
2022-01-18 13:45:09,165 - broker - DEBUG -
base_broker.X2GoBroker.get_agent_query_mode(): found
default-agent-query-mode in global config section: ssh
2022-01-18 13:45:09,165 - broker - DEBUG -
base_broker.X2GoBroker.get_portscan_x2goservers(): found
default-portscan-x2goservers in global config section: True
2022-01-18 13:45:09,167 - broker - DEBUG -
base_broker.X2GoBroker.get_session_autologin(): found
broker-session-autologin in session profile with ID [wks1: True.
This one has precendence over the default value.
2022-01-18 13:45:09,177 - broker - DEBUG -
base_broker.X2GoBroker.get_authorized_keys_file(): found
default-authorized-keys in global config section:
%h/.x2go/authorized_keys
2022-01-18 13:45:09,221 - broker - INFO - Executing agent command
on remote host 192.168.56.228 (192.168.56.228): sh -c
'/usr/lib/x2go/x2gobroker-agent brians addauthkey
"no-X11-forwarding,no-pty,no-user-rc ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQC5JtTMMkSa3yus8ciCIcYvzl7FYvEsFtoppLFyce3zEfc8+zg4xH3qSwDIHP/2f0nUBiuOESIRjsVQa0nIxjQljXegJO82p/6ixP1eZHzNZUuTCHBL4vA7QAVteHJgBFhUYz4rqPQIwyrQR9STu/cLu0fGIKvFxIf0LIC0zs2Xf+B6qQwoXQF4aR9G2AGOaeGcvwBItyLhVxWwzHmoxAHAqWMCisFPGACItfdDixhZl9IyCdcmsyFxWsndjgKPXAJGBxUREIkntaXgtZ7IrIDhrTtY9xWy0mJUwKlIdqluViMxyWagQM5TX38OVYH+fR2DaNV3WxCuO8pKHgH24ExV
brians@192.168.56.1" "%h/.x2go/authorized_keys"'
2022-01-18 13:45:09,921 - broker - INFO - Broker agent answered: OK;
2022-01-18 13:45:09,921 - broker - DEBUG -
base_broker.X2GoBroker.get_authorized_keys_file(): found
default-authorized-keys in global config section:
%h/.x2go/authorized_keys
2022-01-18 13:45:09,923 - broker - DEBUG - Scheduled deletion of
authorized key in 20s: user=brians, hostname=192.168.56.228,
hostaddr=192.168.56.228
2022-01-18 13:45:29,981 - broker - INFO - Executing agent command
on remote host 192.168.56.228 (192.168.56.228): sh -c
'/usr/lib/x2go/x2gobroker-agent brians delauthkey
"no-X11-forwarding,no-pty,no-user-rc ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQC5JtTMMkSa3yus8ciCIcYvzl7FYvEsFtoppLFyce3zEfc8+zg4xH3qSwDIHP/2f0nUBiuOESIRjsVQa0nIxjQljXegJO82p/6ixP1eZHzNZUuTCHBL4vA7QAVteHJgBFhUYz4rqPQIwyrQR9STu/cLu0fGIKvFxIf0LIC0zs2Xf+B6qQwoXQF4aR9G2AGOaeGcvwBItyLhVxWwzHmoxAHAqWMCisFPGACItfdDixhZl9IyCdcmsyFxWsndjgKPXAJGBxUREIkntaXgtZ7IrIDhrTtY9xWy0mJUwKlIdqluViMxyWagQM5TX38OVYH+fR2DaNV3WxCuO8pKHgH24ExV
brians@192.168.56.1" "%h/.x2go/authorized_keys"'
2022-01-18 13:45:30,816 - broker - INFO - Broker agent answered: OK;
Workstation auth.log
Jan 18 13:45:07 ubuntu-focal sshd[36704]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:07 ubuntu-focal sshd[36705]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:07 ubuntu-focal sshd[36706]: Accepted publickey for
x2gobroker from 192.168.56.230 port 58526 ssh2: RSA
SHA256:dBs4pnJUuc0/h4OUI52+D8aKAbTaDC1QYtbB8/eH/l4
Jan 18 13:45:07 ubuntu-focal sshd[36706]: pam_unix(sshd:session):
session opened for user x2gobroker by (uid=0)
Jan 18 13:45:07 ubuntu-focal systemd-logind[713]: New session 32
of user x2gobroker.
Jan 18 13:45:07 ubuntu-focal systemd:
pam_unix(systemd-user:session): session opened for user x2gobroker
by (uid=0)
Jan 18 13:45:07 ubuntu-focal sshd[36706]: pam_unix(sshd:session):
session closed for user x2gobroker
Jan 18 13:45:07 ubuntu-focal systemd-logind[713]: Session 32
logged out. Waiting for processes to exit.
Jan 18 13:45:07 ubuntu-focal systemd-logind[713]: Removed session 32.
Jan 18 13:45:07 ubuntu-focal sshd[36820]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:08 ubuntu-focal sshd[36821]: Accepted publickey for
x2gobroker from 192.168.56.230 port 58530 ssh2: RSA
SHA256:dBs4pnJUuc0/h4OUI52+D8aKAbTaDC1QYtbB8/eH/l4
Jan 18 13:45:08 ubuntu-focal sshd[36821]: pam_unix(sshd:session):
session opened for user x2gobroker by (uid=0)
Jan 18 13:45:08 ubuntu-focal systemd-logind[713]: New session 34
of user x2gobroker.
Jan 18 13:45:08 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ;
COMMAND=/usr/bin/x2golistsessions --all-servers
Jan 18 13:45:08 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:08 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:08 ubuntu-focal sshd[36821]: pam_unix(sshd:session):
session closed for user x2gobroker
Jan 18 13:45:08 ubuntu-focal systemd-logind[713]: Session 34
logged out. Waiting for processes to exit.
Jan 18 13:45:08 ubuntu-focal systemd-logind[713]: Removed session 34.
Jan 18 13:45:08 ubuntu-focal sshd[36921]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:08 ubuntu-focal sshd[36922]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:08 ubuntu-focal sshd[36923]: Accepted publickey for
x2gobroker from 192.168.56.230 port 58536 ssh2: RSA
SHA256:dBs4pnJUuc0/h4OUI52+D8aKAbTaDC1QYtbB8/eH/l4
Jan 18 13:45:08 ubuntu-focal sshd[36923]: pam_unix(sshd:session):
session opened for user x2gobroker by (uid=0)
Jan 18 13:45:08 ubuntu-focal systemd-logind[713]: New session 35
of user x2gobroker.
Jan 18 13:45:09 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ; COMMAND=/usr/bin/mkdir -p
/home/brians/.x2go
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:09 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ; COMMAND=/usr/bin/touch
/home/brians/.x2go/authorized_keys
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:09 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ; COMMAND=/usr/bin/cat
/home/brians/.x2go/authorized_keys
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:09 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ; COMMAND=/usr/bin/tee -a
/home/brians/.x2go/authorized_keys
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:09 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:09 ubuntu-focal sshd[36923]: pam_unix(sshd:session):
session closed for user x2gobroker
Jan 18 13:45:09 ubuntu-focal systemd-logind[713]: Session 35
logged out. Waiting for processes to exit.
Jan 18 13:45:09 ubuntu-focal systemd-logind[713]: Removed session 35.
Jan 18 13:45:09 ubuntu-focal sshd[37020]: Accepted publickey for
brians from 192.168.56.1 port 42394 ssh2: RSA
SHA256:4fPeupT3DmbLhiYOu08NOn1H8wYDYxEVVpHSg+gWLtw
Jan 18 13:45:09 ubuntu-focal sshd[37020]: pam_unix(sshd:session):
session opened for user brians by (uid=0)
Jan 18 13:45:09 ubuntu-focal systemd-logind[713]: New session 36
of user brians.
Jan 18 13:45:09 ubuntu-focal systemd:
pam_unix(systemd-user:session): session opened for user brians by
(uid=0)
Jan 18 13:45:10 ubuntu-focal sshd[37020]: pam_unix(sshd:session):
session closed for user brians
Jan 18 13:45:10 ubuntu-focal systemd-logind[713]: Session 36
logged out. Waiting for processes to exit.
Jan 18 13:45:10 ubuntu-focal systemd-logind[713]: Removed session 36.
Jan 18 13:45:29 ubuntu-focal sshd[37159]: error:
kex_exchange_identification: Connection closed by remote host
Jan 18 13:45:29 ubuntu-focal sshd[37160]: Accepted publickey for
x2gobroker from 192.168.56.230 port 58540 ssh2: RSA
SHA256:dBs4pnJUuc0/h4OUI52+D8aKAbTaDC1QYtbB8/eH/l4
Jan 18 13:45:29 ubuntu-focal sshd[37160]: pam_unix(sshd:session):
session opened for user x2gobroker by (uid=0)
Jan 18 13:45:29 ubuntu-focal systemd-logind[713]: New session 38
of user x2gobroker.
Jan 18 13:45:29 ubuntu-focal systemd:
pam_unix(systemd-user:session): session opened for user x2gobroker
by (uid=0)
Jan 18 13:45:30 ubuntu-focal sudo: root : TTY=unknown ;
PWD=/var/lib/x2gobroker ; USER=brians ; COMMAND=/usr/bin/sed -e
s!^no-X11-forwarding,no-pty,no-user-rc ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQC5JtTMMkSa3yus8ciCIcYvzl7FYvEsFtoppLFyce3zEfc8+zg4xH3qSwDIHP/2f0nUBiuOESIRjsVQa0nIxjQljXegJO82p/6ixP1eZHzNZUuTCHBL4vA7QAVteHJgBFhUYz4rqPQIwyrQR9STu/cLu0fGIKvFxIf0LIC0zs2Xf+B6qQwoXQF4aR9G2AGOaeGcvwBItyLhVxWwzHmoxAHAqWMCisFPGACItfdDixhZl9IyCdcmsyFxWsndjgKPXAJGBxUREIkntaXgtZ7IrIDhrTtY9xWy0mJUwKlIdqluViMxyWagQM5TX38OVYH+fR2DaNV3WxCuO8pKHgH24ExV
brians@192.168.56.1$!! -e /^$/d -i /home/brians/.x2go/authorized_keys
Jan 18 13:45:30 ubuntu-focal sudo: pam_unix(sudo:session): session
opened for user brians by (uid=0)
Jan 18 13:45:30 ubuntu-focal sudo: pam_unix(sudo:session): session
closed for user brians
Jan 18 13:45:30 ubuntu-focal sshd[37160]: pam_unix(sshd:session):
session closed for user x2gobroker
Jan 18 13:45:30 ubuntu-focal systemd-logind[713]: Session 38
logged out. Waiting for processes to exit.
Jan 18 13:45:30 ubuntu-focal systemd-logind[713]: Removed session 38.
Jan 18 13:45:32 ubuntu-focal dbus-daemon[701]: [system] Failed to
activate service 'org.bluez': timed out
(service_start_timeout=25000ms)
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