[X2Go-User] x2go stopped working, how do I debug this?

Stefan Baur X2Go-ML-1 at baur-itcs.de
Wed Jun 8 01:23:07 CEST 2016 

Hi,

some more information regarding your system would probably be helpful
for anyone willing to help you:
- Which Linux distribution are you using on the server?
- What's the version number?
- Which X2Go repository are you using? Stable or Heuler?

Also (assuming a Debian-based Linux distribution; please substitute the
appropriate commands if you're using something different), the output of
cat /etc/hosts
cat /etc/network/interfaces
cat /etc/apt/sources.list
dpkg -l | grep x2go

Similar info regarding the client you are using would be helpful as
well;  Also, whether or not you tried it with only one or several
clients (maybe the issue is actually with your particular client rather
than the server).

That said, if you don't want to post possibly confidential or
exploitable information to the Internet, yet need to get this issue
resolved quickly ...

<shameless plug>
X2Go also has a commercial side, where various companies - including
my own - offer support contracts with guaranteed response times as
well as consultancy and paid-for development work if someone wants to
see a bug fixed or a new feature added in a certain time frame.

What makes my company special is, IMHO:
1) I'm the current X2Go Project/Community Coordinator, so the
   development lead and the developers tend to listen to me.
2) As far as I know, we are the only company providing X2Go support
   that isn't a one-man-show.
3) We sub-contract other developers from the X2Go community on demand,
   so you only have one person you need to talk to - me - and you will
   only receive one invoice, even if the task involved several freelance
   or part-time X2Go developers.

Our hourly rate for consultancy work and fixing issues outside of a
support contract is 110 EUR.
With a support contract, you get guaranteed response times (starting at
400 EUR/month for 24h response time during business hours in the
CET/CEST time zone from Monday to Friday, German holidays excluded)
and lower hourly rates if you buy a certain amount of hours in advance.
</shameless plug>

Obviously, personal information gathered under a support contract
remains confidential.

Kind Regards,
Stefan Baur

Am 08.06.2016 um 00:38 schrieb M.Rule:
> Hello, apologies, I found the relevant Wiki page on how to collect
> detailed logging info. I've grabbed data from multiple sources on the
> client and server, but haven't been able to interpret the log outputs to
> understand what the problem is.
> 
> Apologies for the data dump, but here are the relevant logs. Again, I've
> tried to replace most identifying info with variable names.
> 
> 
> Last piece of output seen in x2go client GUI before crashing
> ---------------------------------------------------------------------
> 
> 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 '534'.
> Session: Starting session at 'Tue $DATE 21:55:25 2016'.
> Info: Connecting to remote host 'localhost:31001'.
> Info: Connection to remote proxy 'localhost:31001' 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 MODEM link parameters 256/24/1/0.
> Info: Using cache parameters 4/4096KB/8192KB/8192KB.
> Info: Using pack method '4k-png-3' with session 'unix-kde-depth_32'.
> InfoInfo: Established X server connection.
> Info: Using shared memory parameters 0/0K.
> 
> 
> Last bit of output from x2go server /var/log/auth.log
> ---------------------------------------------------------------------
> 
> $DATE $TIME $HOST sshd[14538]: reverse mapping checking getaddrinfo for
> $INTERNET_PROVIDER [$INTERNET_PROVIDER_IP] failed - POSSIBLE BREAK-IN
> ATTEMPT!
> $DATE $TIME $HOST sshd[14538]: Accepted publickey for $USER from
> $INTERNET_PROVIDER_IP port 49488 ssh2: RSA $A_RSA_KEY
> $DATE $TIME $HOST sshd[14538]: pam_unix(sshd:session): session opened
> for user $USER by (uid=0)
> $DATE $TIME $HOST systemd-logind[1544]: New session 10 of user $USER.
> $DATE $TIME $HOST su[15451]: Successful su for $USER by root
> $DATE $TIME $HOST su[15451]: + ??? root:$USER
> $DATE $TIME $HOST su[15451]: pam_unix(su:session): session opened for
> user $USER by (uid=0)
> $DATE $TIME $HOST systemd-logind[1544]: New session c20 of user $USER.
> $DATE $TIME $HOST su[15451]: pam_unix(su:session): session closed for
> user $USER
> $DATE $TIME $HOST su[15468]: Successful su for $USER by root
> $DATE $TIME $HOST su[15468]: + ??? root:$USER
> $DATE $TIME $HOST su[15468]: pam_unix(su:session): session opened for
> user $USER by (uid=0)
> $DATE $TIME $HOST systemd-logind[1544]: Removed session c20.
> $DATE $TIME $HOST systemd-logind[1544]: New session c21 of user $USER.
> $DATE $TIME $HOST sshd[14538]: pam_unix(sshd:session): session closed
> for user $USER
> $DATE $TIME $HOST su[15468]: pam_unix(su:session): session closed for
> user $USER
> $DATE 17:04:56 $HOST systemd-logind[1544]: Removed session c21.
> $DATE 17:05:01 $HOST systemd-logind[1544]: Removed session 10.
> 
> 
> Last bit of console output from x2go client run with the --debug flag
> ---------------------------------------------------------------------
> 
> x2go-DEBUG-../src/sshmasterconnection.cpp:1312> Locking SSH channel
> connection MUTEX.
> x2go-DEBUG-../src/sshmasterconnection.cpp:1314> Passing new channel
> conenction object to channelConnections.
> x2go-DEBUG-../src/sshmasterconnection.cpp:1316> Unlocking SSH channel
> connection MUTEX.
> x2go-DEBUG-../src/onmainwindow.cpp:5995> Finished proxy.
> x2go-DEBUG-../src/sshmasterconnection.cpp:1504> Creating new channel.
> x2go-DEBUG-../src/sshmasterconnection.cpp:1508> New channel:0x7faa624f8a10
> x2go-DEBUG-../src/sshmasterconnection.cpp:1539> Executing remote: "bash
> -l -c 'echo "X2GODATABEGIN:fa470e47-9c58-492b-879d-9beb33e7c7f6"; export
> PATH="/usr/local/bin:/usr/bin:/bin"; export TERM="dumb";
> x2gocmdexitmessage $USER-50-1465337781_stDXFCE_dp32; echo
> "X2GODATAEND:fa470e47-9c58-492b-879d-9beb33e7c7f6";'"
> Segmentation fault: 11
> 
> Relevant output from /var/log/syslog on x2go server:
> ---------------------------------------------------------------------
> 
> $DATE $TIME $HOST /usr/bin/x2golistsessions[4441]: x2golistsessions has
> been called with no option
> $DATE $TIME $HOST /usr/bin/x2gostartagent: x2gostartagent called with
> options: 800x600 modem 4k-png unix-kde-depth_32 us query 0 D XFCE both
> $DATE $TIME $HOST /usr/bin/x2gostartagent: client announced itself as
> ,,$IP_ADDRESS''
> $DATE $TIME $HOST /usr/bin/x2gosessionlimit[4530]: x2gosessionlimit has
> been called
> $DATE $TIME $HOST /usr/bin/x2golistsessions[4533]: x2golistsessions has
> been called with options: --all-servers
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetdisplays[4550]: db_getdisplays
> called, server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[4559]: db_getports called,
> server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertsession[4589]:
> db_insertsession called, session ID: $USER-50-1465338404_stDXFCE_dp32,
> server: $HOST, session ID: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[4598]: db_getports called,
> server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[4612]: db_insertport
> called, session ID: $USER-50-1465338404_stDXFCE_dp32, server: $HOST, SSH
> port: 30001
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[4621]: db_getports called,
> server: $HOST; return value: |30001|
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[4635]: db_insertport
> called, session ID: $USER-50-1465338404_stDXFCE_dp32, server: $HOST, SSH
> port: 30002
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[4644]: db_getports called,
> server: $HOST; return value: |30001| |30002|
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[4658]: db_insertport
> called, session ID: $USER-50-1465338404_stDXFCE_dp32, server: $HOST, SSH
> port: 30003
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338404_stDXFCE_dp32 pre-start
> $DATE $TIME $HOST /usr/bin/x2gostartagent: successfully started X2Go
> agent session with ID $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338404_stDXFCE_dp32 post-start
> $DATE $TIME $HOST /usr/lib/x2go/x2gocreatesession[4737]:
> db_createsession called, session ID: $USER-50-1465338404_stDXFCE_dp32,
> cookie: 6daa3e6d71882d95ae1af583cc7db300, client: 194.75.11.7, pid:
> 4702, graphics port: 30001, sound port: 30002, file sharing port: 30003
> $DATE $TIME $HOST /usr/bin/x2gostartagent: blocking creation of agent's
> keyboard file
> /tmp/.x2go-$USER/C-$USER-50-1465338404_stDXFCE_dp32/keyboard as
> requested by session startup command
> $DATE $TIME $HOST /usr/bin/x2goruncommand: x2goruncommand called with
> options: 50 4702 $USER-50-1465338404_stDXFCE_dp32 30002 xfce4-session
> nosnd D
> $DATE $TIME $HOST /usr/bin/x2goruncommand: exporting
> LD_LIBRARY_PATH=/usr/lib/nx/X11/Xinerama:/usr/lib/nx/X11
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338404_stDXFCE_dp32 pre-runcommand
> $DATE $TIME $HOST /usr/bin/x2goruncommand: running command
> /usr/bin/xfce4-session
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: x2gomountdirs has been
> called with options: dir $USER-50-1465338404_stDXFCE_dp32 $USER
> /home/$USER/.x2go/ssh/key.JL1025
> /Users/$USER/.x2go/S-$USER-50-1465338404_stDXFCE_dp32/spool__PRINT_SPOOL___REVERSESSH_PORT__30003
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: mounting
> /tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32, mount point
> type is print spool directory
> $DATE $TIME $HOST /usr/bin/x2gosetkeyboard: x2gosetkeyboard called with
> options:
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_XSESSION
> $DATE $TIME $HOST /usr/bin/x2gosetkeyboard:
> /home/$USER/.x2go/C-$USER-50-1465338404_stDXFCE_dp32/keyboard is
> blocked, not setting keyboard parameters from client-side settings
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_XSESSION
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: db_insertmount called,
> session ID: $USER-50-1465338404_stDXFCE_dp32, path:
> /tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32, client:
> 127.0.0.1; return value: 1
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: SSH key file has
> arrived: /home/$USER/.x2go/ssh/key.JL1025
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: SSH host key has
> arrived: /home/$USER/.x2go/ssh/key.JL1025.ident
> $DATE $TIME $HOST /usr/bin/x2gomountdirs[4987]: executing: timeout 30
> sshfs  -o idmap=user,uid=`id -u`,gid=`id
> -g`,default_permissions,ServerAliveInterval=300,Cipher=blowfish,IdentityFile=/home/$USER/.x2go/ssh/key.JL1025,UserKnownHostsFile=/home/$USER/.x2go/ssh/key.JL1025.ident
> "$USER"@127.0.0.1
> <http://127.0.0.1>:"/Users/$USER/.x2go/S-$USER-50-1465338404_stDXFCE_dp32/spool"
> "/tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32" -p 30003
> $DATE $TIME $HOST /usr/share/x2go/x2gofeature.d/x2goserver.features:
> x2goserver.features called with options: X2GO_XSESSION
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-lxdebindings.features:
> x2goserver-lxdebindings.features called with options: X2GO_XSESSION
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features:
> x2goserver-xsession.features called with options: X2GO_XSESSION
> $DATE $TIME $HOST /usr/bin/x2goruncommand: launching session with
> Xsession-x2go mechanism, using STARTUP="xfce4-session"
> $DATE $TIME $HOST /usr/bin/x2goruncommand: command
> /usr/bin/xfce4-session has finished
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338404_stDXFCE_dp32 post-runcommand
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_DESKTOPSHARING
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_DESKTOPSHARING
> $DATE $TIME $HOST /usr/share/x2go/x2gofeature.d/x2goserver.features:
> x2goserver.features called with options: X2GO_DESKTOPSHARING
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-lxdebindings.features:
> x2goserver-lxdebindings.features called with options: X2GO_DESKTOPSHARING
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features:
> x2goserver-xsession.features called with options: X2GO_DESKTOPSHARING
> $DATE $TIME $HOST /usr/lib/x2go/x2gochangestatus[5145]: db_changestatus
> called, session ID: $USER-50-1465338404_stDXFCE_dp32, new status: F
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: x2goumount-session
> has been called with options: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: db_getdisplay
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value: 50
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: db_getmounts
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value:
> 127.0.0.1|/tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32|
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: found mounted share
> $USER at 127.0.0.1:/Users/$USER/.x2go/S-$USER-50-1465338404_stDXFCE_dp32/spool
> /tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32 fuse.sshfs
> rw,nosuid,nodev,default_permissions,user=$USER 0 0
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: ERROR: failed to
> unmount "/tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32"
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_FMBINDINGS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_FMBINDINGS
> $DATE $TIME $HOST /usr/sbin/x2gocleansessions[1663]:
> $USER-50-1465338404_stDXFCE_dp32 is blocked
> $DATE $TIME $HOST /usr/sbin/x2gocleansessions[1663]:
> $USER-50-1465338404_stDXFCE_dp32, pid 4702 cleaning up stale X11 socket
> file: /tmp/.X11-unix/X50
> $DATE $TIME $HOST /usr/sbin/x2gocleansessions[1663]:
> $USER-50-1465338404_stDXFCE_dp32: unmounting all shares
> $DATE $TIME $HOST /usr/share/x2go/x2gofeature.d/x2goserver.features:
> x2goserver.features called with options: X2GO_FMBINDINGS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-lxdebindings.features:
> x2goserver-lxdebindings.features called with options: X2GO_FMBINDINGS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features:
> x2goserver-xsession.features called with options: X2GO_FMBINDINGS
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5212]: x2goumount-session
> has been called with options: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5153]: db_deletemount
> called, session ID: $USER-50-1465338404_stDXFCE_dp32, path:
> /tmp/.x2go-$USER/spool/C-$USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5212]: db_getdisplay
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value: 50
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5212]: db_getmounts
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value:
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 35
> was not found when attempting to remove it
> $DATE $TIME $HOST /usr/lib/x2go/x2gormforward[5250]: Terminating SSHD
> process: 4406
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 27
> was not found when attempting to remove it
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 46
> was not found when attempting to remove it
> $DATE $TIME $HOST /usr/lib/x2go/x2golistsessions_sql[5267]:
> dbsys_deletemounts called, session ID: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/lib/x2go/x2golistsessions_sql[5267]: Purging
> finished session from X2Go db, session ID: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/sbin/x2gocleansessions[1663]:
> $USER-50-1465338404_stDXFCE_dp32 is blocked
> $DATE $TIME $HOST /usr/sbin/x2gocleansessions[1663]:
> $USER-50-1465338404_stDXFCE_dp32: unmounting all shares
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5287]: x2goumount-session
> has been called with options: $USER-50-1465338404_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5287]: db_getdisplay
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value:
> $DATE $TIME $HOST /usr/bin/x2goumount-session[5287]: db_getmounts
> called, session ID: $USER-50-1465338404_stDXFCE_dp32; return value:
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 61
> was not found when attempting to remove it
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 72
> was not found when attempting to remove it
> $DATE 18:27:30 $HOST /usr/bin/x2golistsessions[5504]: x2golistsessions
> has been called with no option
> $DATE $TIME $HOST /usr/bin/x2gostartagent: x2gostartagent called with
> options: 800x600 modem 4k-png unix-kde-depth_32 us query 0 D XFCE both
> $DATE $TIME $HOST /usr/bin/x2gostartagent: client announced itself as
> ,,194.75.11.7''
> $DATE $TIME $HOST /usr/bin/x2gosessionlimit[5584]: x2gosessionlimit has
> been called
> $DATE $TIME $HOST /usr/bin/x2golistsessions[5587]: x2golistsessions has
> been called with options: --all-servers
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetdisplays[5604]: db_getdisplays
> called, server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[5613]: db_getports called,
> server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertsession[5642]:
> db_insertsession called, session ID: $USER-50-1465338455_stDXFCE_dp32,
> server: $HOST, session ID: $USER-50-1465338455_stDXFCE_dp32
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[5654]: db_getports called,
> server: $HOST; return value:
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[5668]: db_insertport
> called, session ID: $USER-50-1465338455_stDXFCE_dp32, server: $HOST, SSH
> port: 30001
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[5677]: db_getports called,
> server: $HOST; return value: |30001|
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[5691]: db_insertport
> called, session ID: $USER-50-1465338455_stDXFCE_dp32, server: $HOST, SSH
> port: 30002
> $DATE $TIME $HOST /usr/lib/x2go/x2gogetports[5700]: db_getports called,
> server: $HOST; return value: |30001| |30002|
> $DATE $TIME $HOST /usr/lib/x2go/x2goinsertport[5714]: db_insertport
> called, session ID: $USER-50-1465338455_stDXFCE_dp32, server: $HOST, SSH
> port: 30003
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338455_stDXFCE_dp32 pre-start
> $DATE $TIME $HOST /usr/bin/x2gostartagent: successfully started X2Go
> agent session with ID $USER-50-1465338455_stDXFCE_dp32
> $DATE $TIME $HOST /usr/bin/x2gofeature: x2gofeature called with options:
> X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST
> /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
> x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
> $DATE $TIME $HOST /usr/bin/x2goserver-run-extensions:
> x2goserver-run-extensions called with options:
> $USER-50-1465338455_stDXFCE_dp32 post-start
> $DATE $TIME $HOST /usr/lib/x2go/x2gocreatesession[5790]:
> db_createsession called, session ID: $USER-50-1465338455_stDXFCE_dp32,
> cookie: d22102308606355627945a50fa7f6496, client: 194.75.11.7, pid:
> 5757, graphics port: 30001, sound port: 30002, file sharing port: 30003
> $DATE $TIME $HOST /usr/bin/x2gostartagent: blocking creation of agent's
> keyboard file
> /tmp/.x2go-$USER/C-$USER-50-1465338455_stDXFCE_dp32/keyboard as
> requested by session startup command
> $DATE $TIME $HOST console-kit-daemon[3669]: GLib-CRITICAL: Source ID 86
> was not found when attempting to remove it
> J
> 
> On Tue, Jun 7, 2016 at 10:13 PM, M.Rule <mrule7404 at gmail.com
> <mailto:mrule7404 at gmail.com>> wrote:
> 
>     We recently moved a server to a new network and x2go is not longer
>     working. The x2go client crashes too quickly to view or copy the
>     error messages that occur before it fails.
> 
>     On the server side, I can see these messages in this in auth.log.
>     I've replaced all possible identifying information (hopefully) with
>     bash-style variable substituions (e.g. $USER). I apologize as this
>     reduces clarity, but I don't want any identifiable details on record.
> 
>     $DATE $TIME $HOSTNAME sshd[14538]: reverse mapping checking
>     getaddrinfo for $INTERNET_PROVIDER [$INTERNET_PROVIDER_IP] failed -
>     POSSIBLE BREAK-IN ATTEMPT!
>     $DATE $TIME $HOSTNAME sshd[14538]: Accepted publickey for $USER from
>     $INTERNET_PROVIDER_IP port 49488 ssh2: RSA $A_RSA_KEY
>     $DATE $TIME $HOSTNAME sshd[14538]: pam_unix(sshd:session): session
>     opened for user $USER by (uid=0)
>     $DATE $TIME $HOSTNAME systemd-logind[1544]: New session 10 of user
>     $USER.
>     $DATE $TIME $HOSTNAME su[15451]: Successful su for $USER by root
>     $DATE $TIME $HOSTNAME su[15451]: + ??? root:$USER
>     $DATE $TIME $HOSTNAME su[15451]: pam_unix(su:session): session
>     opened for user $USER by (uid=0)
>     $DATE $TIME $HOSTNAME systemd-logind[1544]: New session c20 of user
>     $USER.
>     $DATE $TIME $HOSTNAME su[15451]: pam_unix(su:session): session
>     closed for user $USER
>     $DATE $TIME $HOSTNAME su[15468]: Successful su for $USER by root
>     $DATE $TIME $HOSTNAME su[15468]: + ??? root:$USER
>     $DATE $TIME $HOSTNAME su[15468]: pam_unix(su:session): session
>     opened for user $USER by (uid=0)
>     $DATE $TIME $HOSTNAME systemd-logind[1544]: Removed session c20.
>     $DATE $TIME $HOSTNAME systemd-logind[1544]: New session c21 of user
>     $USER.
>     $DATE $TIME $HOSTNAME sshd[14538]: pam_unix(sshd:session): session
>     closed for user $USER
>     $DATE $TIME $HOSTNAME su[15468]: pam_unix(su:session): session
>     closed for user $USER
>     $DATE 17:04:56 $HOSTNAME systemd-logind[1544]: Removed session c21.
>     $DATE 17:05:01 $HOSTNAME systemd-logind[1544]: Removed session 10.
> 
>     I'm not really familiar with things like this, but it looks like it
>     is repeatedly creating new sessions, and then these sessions are
>     closed (for some reason). I don't understand form these messages.
> 
>     On the client side, this is as much of the log as I can get before
>     the program crashes. I haven't been able to locate the x2go client
>     logfiles .
> 
>     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 '534'.
>     Session: Starting session at 'Tue $DATE 21:55:25 2016'.
>     Info: Connecting to remote host 'localhost:31001'.
>     Info: Connection to remote proxy 'localhost:31001' 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 MODEM link parameters 256/24/1/0.
>     Info: Using cache parameters 4/4096KB/8192KB/8192KB.
>     Info: Using pack method '4k-png-3' with session 'unix-kde-depth_32'.
>     InfoInfo: Established X server connection.
>     Info: Using shared memory parameters 0/0K.
> 
>     Can anyone help me debug this? I need more detailed errors if I'm
>     going to solve this on my own -- I can't really access all the error
>     messages, nor interpret the errors available, at the moment.
> 
>     Thanks in advance if you're able to help.
>     Best,
>     M. Rule.
> 
> 
> 
> 
> _______________________________________________
> x2go-user mailing list
> x2go-user at lists.x2go.org
> http://lists.x2go.org/listinfo/x2go-user
> 


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