Stefan,
Q1: So now I'm confused - are you trying to connect to the same server, from
both clients? Or are these two different servers, not only two different
clients?
My response: I am trying to connect from one x2go client (Mac 10.10.4) to one
x2go server (RHEL7). When I login from the x2go client using a non-root account
to the x2goserver the session kicks me back to the login screen. When I login
from the x2go client using a root account to the x2goserver I am able to
connect without any problems.
Q2: It doesn't look like you allowed incoming connections for x2goclient.app
yet? Judging from what Mihai (one of our resident Mac experts here on the
list) told me, you have to, or X2GoClient won't work
My response: the x2go server is RHEL7, how do you allow incoming connections
for x2goclient.app?
The x2goserver is installed and the x2gocleansessions.service is running. Here
are the rpms installed and the preceding firewall commands tried.
[root@ ~]# rpm -qa | grep x2go
x2goserver-4.0.1.19-3.el7.x86_64
x2goserver-xsession-4.0.1.19-3.el7.x86_64
x2goagent-3.5.0.31-1.el7.x86_64
x2goclient-4.0.3.1-1.el7.x86_64
[root@ ~]# firewall-cmd --permanent --add-service=x2go
Error: INVALID_SERVICE: x2go
[root@ ~]# firewall-cmd --permanent --add-service=x2gocleansessions.service
Error: INVALID_SERVICE: x2gocleansessions.service
[root@ ~]# firewall-cmd --permanent --add-service=x2goclient.app
Error: INVALID_SERVICE: x2goclient.app
[root@ ~]# firewall-cmd --permanent --add-service=x2goclient
Error: INVALID_SERVICE: x2goclient
[root@ ~]# systemctl status x2gocleansessions.service
x2gocleansessions.service - X2go session cleanup
Loaded: loaded (/usr/lib/systemd/system/x2gocleansessions.service; enabled)
Active: active (running) since Tue 2015-09-15 09:04:18 PDT; 4 weeks 0 days
ago
Main PID: 717 (x2gocleansessio)
CGroup: /system.slice/x2gocleansessions.service
└─717 /usr/bin/perl /usr/sbin/x2gocleansessions
Q3: run the following 4 tests on the terminal, compare banner messages
My response: ran the ssh commands suggested but there are no banner
differences. I’m able to connect to the x2goserver without issues. Xterm comes
up without issues, no error messages.
Q4: xquartz security tab screen shot
My response: both authenticate connections and allow connections from network
clients are checked (see attachment)
Q5: are machines on same network
My response: yes they are
Thank you,
Liz
From: Elizabeth Real Chavez
<[email protected]<mailto:[email protected]>>
Date: Monday, September 28, 2015 at 3:26 PM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: x2go client session kicks user back to the session login screen
Stephan,
I reinstalled xquartz 2.7.7 and x2goclient 4.0.5 and verified the settings are
set to those recommended.
The behavior is happening when regular users attempt to connect to an x2go
server. This leads me to believe it could be a permissions issue?
When I attempt to connect as a regular linux user, I get kicked back to the
login scree. However when I connect as ‘root’ there are no problems.
CLIENT LOGIN AS REGULAR USER:
I noticed that if I attempt to login as a regular linux user (real), that user
gets kicked back to the login screen, here’s the session output:
"Protocol mismatch or no X authentication data”
SERVER:
The /var/log/secure reports:
Sep 28 15:11:34 **** sshd[27639]: Accepted keyboard-interactive/pam for real
from ********** port 52380 ssh2
Sep 28 15:11:34 **** sshd[27639]: pam_unix(sshd:session): session opened for
user real by (uid=0)
Sep 28 15:11:38 **** su: pam_unix(su:session): session opened for user real by
(uid=0)
Sep 28 15:11:38 **** su: pam_unix(su:session): session closed for user real
When I check the status of x2gocleansessions.service:
Sep 28 15:11:36 ******* /usr/sbin/x2gocleansessions[769]:
real-50-1443478272_stDKDE_dp32: state file for this session does not exist:
/tmp/.x2go-real/C-real-50-1443478272_stDKDE_dp32/state (this can be ignored
during session startups)
CLIENT LOGIN AS ROOT:
As root there are no issues.
SERVER:
/var/log/secure shows:
Sep 28 15:21:04 node4 sshd[6137]: Accepted password for root from *********
port 52504 ssh2
Sep 28 15:21:04 node4 sshd[6137]: pam_unix(sshd:session): session opened for
user root by (uid=0)
Sep 28 15:21:15 node4 polkitd[1516]: Registered Authentication Agent for
unix-session:46638 (system bus name :1.102126
[/usr/libexec/kde4/polkit-kde-authentication-agent-1], object path
/org/kde/PolicyKit1/AuthenticationAgent, locale C)
Sep 28 15:21:17 node4 sshd[7291]: Accepted publickey for rmdc from **********
port 50161 ssh2: RSA 81:72:dd:4f:3d:a2:18:ba:ed:77:2a:1d:2e:72:f6:4b
Sep 28 15:21:17 node4 sshd[7291]: pam_unix(sshd:session): session opened for
user rmdc by (uid=0)
Sep 28 15:21:17 node4 sshd[7291]: pam_unix(sshd:session): session closed for
user rmdc
Sep 28 15:21:23 node4 sshd[7347]: Accepted publickey for root from **********
port 49422 ssh2: RSA 23:2c:8c:a6:fd:aa:80:ae:7e:fa:60:57:5f:e4:c2:98
Sep 28 15:21:23 node4 sshd[7347]: pam_unix(sshd:session): session opened for
user root by (uid=0)
Thank you,
Liz
From: Elizabeth Real Chavez
<[email protected]<mailto:[email protected]>>
Date: Thursday, September 24, 2015 at 9:12 AM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: x2go client session kicks user back to the session login screen
Hello,
I have a user who is not able to connect to an x2go server using x2go client
for Mac. When I connect to the x2go server in question I am able to
successfully connect and login. I’ve compared settings between the user’s and
my Mac x2go client and they are identical.
I’ve attached screen shots of the client session details. The last messages in
the session are:
* Info: Your session was closed before reaching a usable state.
* Info: This can be due to the local X server refusing access to the client.
* Info: Please check authorization provided by the remote X application.
* Session: Session terminated at
x2go client: v4.0.4.0
xquarts: v2.7.7
Tried uninstalling the x2go client and installing it again but that did not
help. Same errors while attempt is made to connect to x2go server.
Please advise.
Thank you,
Liz
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