to narrow down this issue, please try these steps:

1 o enable loglevel=debug in /etc/x2go/x2goserver.conf, what do you see in /var/log/messages? 2 o use a Linux X2Go Client 3 o use PyHoca-GUI or PyHoca-CLI as client application for X2Go on a Linux machine (with --libdebug option on the cmdline) 4 o btw. do you actually see the session window (for desktop sessions) appear? (and then disappear?) 5 o try ssh user@server -X nxagent :20 (does nxagent come up?)

We have to find out, if your crash is an X2Go Server bug or an NX bug on EPEL-7.

Thanks+Greets, Mike

1- /var/log/message with debug loglevel on server after a try with a Windows client: Dec 11 21:24:42 centos7nightly systemd: Created slice user-1000.slice. Dec 11 21:24:42 centos7nightly systemd: Starting Session 3 of user jasminl. Dec 11 21:24:42 centos7nightly systemd: Started Session 3 of user jasminl. Dec 11 21:24:42 centos7nightly systemd-logind: New session 3 of user jasminl. Dec 11 21:24:45 centos7nightly systemd-logind: Removed session 3.

2- On a CentOS 7 machine, with x2goclient: x2go-INFO-1> "Starting x2goclient..." x2go-WARNING-1> "Can't load translator: :/x2goclient_en_us" x2go-WARNING-2> "Can't load translator: :/qt_en_US" x2go-INFO-3> "Started x2goclient." x2go-INFO-8> "Starting connection to server: 10.10.1.147:22" Segmentation fault (core dumped)

3-On a CentOs 7 machine, PyHoca-GUI rpm dependency boken with epel... requires notify-python, PyHoca-CLI installs successfully (will created another bug for that one..) so... Calling "pyhoca-cli --server 10.10.1.147 --libdebug -q lan --password mypass": Traceback (most recent call last): File "/usr/bin/pyhoca-cli", line 422, in <module> thisPyHocaCLI.authenticate() File "/usr/lib/python2.7/site-packages/pyhoca/cli/frontend.py", line 455, in authenticate self._X2GoClient__connect_session(self.x2go_session_hash, username=_username, password=self.args.password, force_password_auth=force_password_auth) File "/usr/lib/python2.7/site-packages/x2go/client.py", line 1367, in connect_session sshproxy_force_password_auth=sshproxy_force_password_auth, File "/usr/lib/python2.7/site-packages/x2go/session.py", line 1355, in connect self.update_status() File "/usr/lib/python2.7/site-packages/x2go/session.py", line 1641, in update_status raise e x2go.x2go_exceptions.X2GoControlSessionException: x2golistsessions command failed after we have tried 20 times

In the server's /var/log/message: Dec 11 22:05:33 centos7nightly systemd: Starting Session 14 of user jasminl. Dec 11 22:05:33 centos7nightly systemd-logind: New session 14 of user jasminl. Dec 11 22:05:33 centos7nightly systemd: Started Session 14 of user jasminl. Dec 11 22:05:33 centos7nightly /usr/bin/x2gofeaturelist: x2gofeaturelist called with options: Dec 11 22:06:00 centos7nightly systemd: Failed to mark scope session-14.scope as abandoned : Stale file handle Dec 11 22:06:00 centos7nightly systemd-logind: Removed session 14.

While trying to run x2golistsessions on the server: DBIconnect('dbname=/var/x2go/x2go_sessions','',...)failed:unabletoopendatabasefileat/usr/share/perl5/vendor_perl/X2Go/Server/DB/SQLite3.pmline67.

Could it be possible that the DB was never created / initialized during x2goserver's install process? or is it something else entirely? Am I using pyhoca-cli correctly?

4- No, I don't see the same behavior as with bug #675

5- Yes, if by nxagent you mean a black empty window with NX as the title.

Thanks for the followups

Jasmin

On Fr 12 Dez 2014 04:12:50 CET, Jasmin Lévesque wrote:

While trying to run x2golistsessions on the server: DBIconnect('dbname=/var/x2go/x2go_sessions','',...)failed:unabletoopendatabasefileat/usr/share/perl5/vendor_perl/X2Go/Server/DB/SQLite3.pmline67.

Also: the x2go_sessions file should be in /var/lib/x2go/x2go_sessions,
this was a previous problem with the RPM packages provided by X2Go.

Please adapt the HOME path for system user x2gouser on your system
(set it to /var/lib/x2go). Then re-run x2godbadmin --createdb (I
misspelled the command name in my previous mail) and try another
session startup.

Mike

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Found something better while digging HEAD.

In the .spec file, you create the user with: "%{_localstatedir}/x2go" as the home. On CentOS 7, this would mean /var/x2go, if you want to specify /var/lib/x2go, you would have to use "%{_sharedstatedir}/x2go". The x2godbadmin then fails afterwards because /var/x2go doesn't exist and is not writable by x2gouser.

Hope this helps,

Jasmin