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Re: [X2go-dev] ENHANCEMENT-REQUEST: x2goclient -- option for reverse SSH port
by Gerry Reno 25 Jun '10

25 Jun '10

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ENHANCEMENT-REQUEST: x2goclient -- option for reverse SSH port
by Mike Gabriel 25 Jun '10

25 Jun '10

Hi there, in the current x2goclient package (3.01-5, Debian, Qt version) there is need for an option to configure the reverse SSH port number (i.e. the SSH daemon's port on the client side). This option should be a client wide config option (not a per-session option). Printing and file sharing (sshfs/fuse) build up a reverse port forwarding tunnel from the x2goserver back to the client. This feature is used for x2goprint and x2gomountdirs (if I understand the perl code correctly) and could also be used for any other feature that could be evoked by a reverse SSH connection... The linux x2goclient, however, pre-requisites a running ssh daemon on the client system. Its standard port is 22. The x2goclient will only work if the client's SSH daemon runs on the default port 22. It will fail if the port has been set to a custom (high) port. Consider a client, whose system administrator has set the SSH port to a high --- to potential intruders unknown --- port number (e.g. 20222). With such an SSH setup, sshfs/fuse will fail... Reproduce: o modify /etc/ssh/sshd_config o set ,,Port 20222'' (or something else) o /etc/init.d/ssh restart o start x2goclient as some user and login to a remote x2goserver o start a shell within the x2go session on the server o type ,,mount | grep sshfs'' Suggestions: (a) add a global SSH port number option to the x2goclient (linux-only). (b) Another way for the x2goclient could be some autodetect code: lsof -ni | egrep "^sshd.*root.*IPv4" | awk '{ print $8 }' (c) Another way, similar to the windows client, could be to run a separate ssh instance that binds to a random port on the localhost lo-device only. That's where the reverse SSH tunnel (server -> client) has its endpoint. sshd -o ListenAddress 127.0.0.1:<someport> -o <someOtherOption> Hope to be of help, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 eMail-LeseSchreibStunde: wochentags 8h-10h mail: m.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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BUG-REPORT: x2goclient (Windows): pulseaudio missing pa_stream_proplist_update patch
by Mike Gabriel 25 Jun '10

25 Jun '10

Hi there, pulseaudio in x2goclient (Windows, 3.0.1-5) is probably missing a patch that was introduced on 2009/05/18. http://launchpadlibrarian.net/26903656/lp-348540-pulsesink.patch When connecting from Windows to Ubuntu Lucid, pulseaudio crashes once you start totem to play an mp3 or other file. A pop up error appears, stating: """ Es ist ein Fehler aufgetreten pa_stream_proplist_update() failed: Nicht untersützt """ Best, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 eMail-LeseSchreibStunde: wochentags 8h-10h mail: m.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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BUG-REPORT: login by non-x2gousers account increase server load
by Mike Gabriel 25 Jun '10

25 Jun '10

Hi there, here is a little --- what seems to me like a --- bug report... SERVER (Ubuntu Lucid) x2goserver-home: 3.0.1-1 x2goserver-one: 3.0.1-1 x2goserver: 3.0.1-5 CLIENT (Debian Lenny; Ubuntu Karmic/Lucid) x2goclient: 3.0.1-5 When logging in to the x2goserver with an account that is not in the x2gousers group on the x2goserver, I see hundreds of sudo errors in the auth.log file on the server (about 50-60, every 5 seconds): <quote> Jun 23 13:12:46 <hostname> sudo: <uid> : no tty present and no askpass program specified ; TTY=unknown ; PWD=<homedir> ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper insertsession <pid> <fqdn.hostname> <session-id> </quote> To my understanding, the x2goserver should just say: ,,NO, you are not supposed to login, as you are not in the x2gousers group on this server... Goodbye and Farewell...'' Instead the x2goclient waits endlessly for a login... BTW: once you add a user to the x2gousers group the login from the x2goclient proceeds as normal... greets, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 eMail-LeseSchreibStunde: wochentags 8h-10h mail: m.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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FEATURE-REQUESTS: increase log/debug output
by Mike Gabriel 25 Jun '10

25 Jun '10

Hi, I find debugging of the x2go server side script a bit difficult. IMHO there could/should be more verbosity explaining processings and failures in the x2goserver logs. Of course, this should be configurable --- i.e. it needs a switch to be turned on or off... If there is a concept on how to log events in the x2goserver, please let me know and I would love to add debug verbosity. Best, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 eMail-LeseSchreibStunde: wochentags 8h-10h mail: m.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Re: [X2go-dev] trouble getting printing to work
by Gerry Reno 24 Jun '10

24 Jun '10

1 0

Re: [X2go-dev] trouble getting printing to work
by Gerry Reno 24 Jun '10

24 Jun '10

1 0

INSTALLATION IN CLEAN UBUNTU 10.04/DEBIAN WORKS BUT CLIENTS CAN'T CONNECT
by Ricardo Díaz Martín 24 Jun '10

24 Jun '10

Hi, I'm getting crazy with x2go home server when I read all users installation works at the first. I have done step by step installation in ubuntu and looks like all works fine (no errors at installation time). After when I'm try to connect from client side I get always the same error: Connection failed. cat: /home/<user_that_is_trying_connect>/.x2go/C-<user_that_is_trying_connect>-<some_numbers>_stDGNOME_DP<some_numers>/ cmdoutput: No such file or directory All users are in groups x2gousers and fuse. ssh is enabled and I connect with no problems. I'm using a ubuntu 10.04 clean box. Somebody knows what's wrong? Thanks, Ricardo Díaz

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Re: [X2go-dev] INSTALLATION IN CLEAN UBUNTU 10.04/DEBIAN WORKS BUT CLIENTS CAN'T CONNECT
by Gerry Reno 24 Jun '10

24 Jun '10

1 0

Re: [X2go-dev] trouble getting printing to work
by Gerry Reno 24 Jun '10

24 Jun '10

1 0

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