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Different behavior of X2Go Client from Desktop and TCE
by Oleksandr Shneyder 24 May '18

24 May '18

Hi guys, I have a strange issue. The Xinerama works well in full screen mode, when x2goclient is started on desktop, but doesn't work if x2goclient is started from TCE. It's the same version of client: 4.1.2.0-0x2go1~git20180514.1774+9.heuler.1 and same version of Debian - stretch. Session config identical as well. xrandr output inside of X2Go session is different though: desktop: Screen 0: minimum 320 x 240, current 4480 x 1080, maximum 4480 x 1200 NX1 connected 1920x1080+2560+0 0mm x 0mm nx_1920x1080 60.00* NX2 connected 2560x1080+0+0 0mm x 0mm TCE: Screen 0: minimum 320 x 240, current 2560 x 1024, maximum 2560 x 1200 default connected 2560x1024+0+0 0mm x 0mm 1360x768 60.00 320x240 60.00 1024x600 60.00 1280x800 60.00 1600x900 60.00 1600x1200 60.00 Although if session is started from TCE, I'm getting error dialog from /etc/x2go/Xsession.d/20x11-common_process-args: "unsupported number of arguments (3); falling back to default" before I'm starting to look for the reason, maybe someone who tweaked on Xinerama or on x2go server have any idea why it's happening? regards, Alex -- ----------------------------------------------------------- Oleksandr Shneyder | Email: o.shneyder(a)phoca-gmbh.de phoca GmbH | Tel. : 0911 - 14870374 0 Harzstr. 4 | Fax. : 0911 - 14870374 9 D-90491 Nürnberg | Mobil: 0163 - 49 64 461 Geschäftsführung: Dipl.-Inf. Oleksandr Shneyder Amtsgericht München | http://www.phoca-gmbh.de HRB 196 658 | http://www.x2go.org USt-IdNr.: DE281977973 -----------------------------------------------------------

6 25

Bug#1301: ubuntu ppa x2goserver broken
by jkirsz 24 May '18

24 May '18

Package: x2goserver I installed x2goserver and x2goserver-xsession on Ubuntu 16.04 (latest upgrades) and 18.04 (latest upgrades). When i try to connect to those x2goserver with different x2go-client (latest archlinux / windows 10), and open XFCE desktop environment, i get an error "Connexoin Failed : Failed to start X2Go Agent session with ID user-xxxxxxxxx_stDXFCE_dp24. X2go Agent terminated unexpectedly. Aborting session startup."

3 2

Bug#1301: fixed
by jkirsz 24 May '18

24 May '18

Nxagent fixed by unset LD_LIBRARY_PATH which was set to /usr/lib/x86_64-linux-gnu root@test-triolet:~# nxagent -ac :1 NXAGENT - Version 3.5.99.16 Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder(a)phoca-gmbh.de> Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Copyright (c) 2014-2016 Ulrich Sibiller <uli42(a)gmx.de> Copyright (c) 2014-2016 Mihai Moldovan <ionic(a)ionic.de> Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) See https://github.com/ArcticaProject/nx-libs for more information. Info: Agent running with pid '8762'. Session: Starting session at 'Thu May 24 09:38:15 2018'. Info: Using alpha channel in render extension. nxagent: ../../src/xcb_io.c:520: _XAllocID: Assertion `ret != inval_id' failed. Abandon (core dumped) root@test-triolet:~# unset $LD_LIBRARY_PATH root@test-triolet:~# nxagent -ac :1 NXAGENT - Version 3.5.99.16 Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder(a)phoca-gmbh.de> Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Copyright (c) 2014-2016 Ulrich Sibiller <uli42(a)gmx.de> Copyright (c) 2014-2016 Mihai Moldovan <ionic(a)ionic.de> Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) See https://github.com/ArcticaProject/nx-libs for more information. Info: Agent running with pid '1265'. Session: Starting session at 'Thu May 24 09:43:02 2018'. Info: Using alpha channel in render extension. Info: Not using local device configuration changes. Warning: Cannot read keystroke file '/root/.nx/config/keystrokes.cfg'. Info: using keystrokes file '/etc/nxagent/keystrokes.cfg' Warning: ignoring keystroke 'viewport_scroll_up' (already in use by 'viewport_move_up') Warning: ignoring keystroke 'viewport_scroll_up' (already in use by 'viewport_move_up') Warning: ignoring keystroke 'viewport_scroll_right' (already in use by 'viewport_move_right') Warning: ignoring keystroke 'viewport_scroll_right' (already in use by 'viewport_move_right') Warning: ignoring keystroke 'viewport_scroll_down' (already in use by 'viewport_move_down') Warning: ignoring keystroke 'viewport_scroll_down' (already in use by 'viewport_move_down') Current known keystrokes: close_session Ctrl+Alt+t switch_all_screens Ctrl+Alt+f fullscreen Ctrl+Shift+Alt+f minimize Ctrl+Alt+m defer Ctrl+Alt+e ignore Ctrl+Alt+BackSpace force_synchronization Ctrl+Alt+j resize Ctrl+Alt+r viewport_move_left Ctrl+Shift+Alt+Left viewport_move_left Ctrl+Shift+Alt+KP_Left viewport_move_up Ctrl+Alt+Up viewport_move_up Ctrl+Alt+KP_Up viewport_move_right Ctrl+Alt+Right viewport_move_right Ctrl+Alt+KP_Right viewport_move_down Ctrl+Alt+Down viewport_move_down Ctrl+Alt+KP_Down viewport_scroll_left Ctrl+Alt+Left viewport_scroll_left Ctrl+Alt+KP_Left reread_keystrokes Ctrl+Alt+k Warning: SessionPath not defined Info: Keycode conversion auto-determined as on xkb_keycodes { include "xfree86+aliases(qwerty)" }; xkb_types { include "complete" }; xkb_compatibility { include "complete" }; xkb_symbols { include "pc+us" }; xkb_geometry { include "pc(pc102)" }; The XKEYBOARD keymap compiler (xkbcomp) reports: > Error: Cannot open "compiled/server-1.xkm" to write keyboard description > Exiting Session: Session started at 'Thu May 24 09:43:03 2018'. Info: Screen [0] resized to geometry [958x383] fullscreen [0]. ^CSession: Terminating session at 'Thu May 24 09:43:04 2018'. Session: Session terminated at 'Thu May 24 09:43:04 2018'. FreeFontPath: FPE "/usr/share/fonts/X11/misc/" refcount is 2, should be 1; fixing.

1 0

Bug#1301: syslog during connexion
by jkirsz 24 May '18

24 May '18

Here are server log during connexion with loglevel=debug : May 24 09:21:55 test-triolet systemd[1]: Started Session 202 of user root. May 24 09:22:25 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:25 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:27 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:27 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:29 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:29 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:29 test-triolet systemd[1]: Stopping X2Go Server Daemon... May 24 09:22:29 test-triolet systemd[1]: Stopped X2Go Server Daemon. May 24 09:22:29 test-triolet systemd[1]: Starting X2Go Server Daemon... May 24 09:22:29 test-triolet x2gocleansessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:29 test-triolet x2gocleansessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:29 test-triolet systemd[1]: Started X2Go Server Daemon. May 24 09:22:31 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:31 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:31 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:33 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:33 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:34 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:36 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:36 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:36 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:38 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:38 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:38 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:40 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:40 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:40 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:42 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:42 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:42 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:44 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:44 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:44 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:46 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:47 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:47 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:49 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:49 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:49 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:49 test-triolet systemd[1]: Started Session 203 of user jkirszling. May 24 09:22:49 test-triolet x2golistsessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:49 test-triolet x2golistsessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:49 test-triolet x2golistsessions: x2golistsessions has been called with no option May 24 09:22:49 test-triolet x2golistsessions: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessions,test-triolet May 24 09:22:49 test-triolet /usr/bin/x2gostartagent: x2gostartagent called with options: 800x600 adsl 16m-jpeg-9 unix-kde-depth_24 us auto 1 D XFCE both May 24 09:22:50 test-triolet /usr/lib/x2go/x2gogetrandomport: x2gogetrandomport called with options: May 24 09:22:50 test-triolet /usr/lib/x2go/x2gogetrandomport: Full SSH port randomization requested. May 24 09:22:50 test-triolet /usr/bin/x2gostartagent: client announced itself as "162.38.105.222" May 24 09:22:50 test-triolet /usr/bin/x2gosessionlimit[26694]: x2gosessionlimit has been called May 24 09:22:50 test-triolet /usr/bin/x2gosessionlimit[26694]: executing external command ,,x2golistsessions'' with args: --all-servers May 24 09:22:50 test-triolet x2golistsessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:50 test-triolet x2golistsessions: executing external command ,,x2gopath'' with args: libexec May 24 09:22:50 test-triolet x2golistsessions: x2golistsessions has been called with options: --all-servers May 24 09:22:50 test-triolet x2golistsessions: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessions_all May 24 09:22:50 test-triolet x2gogetdisplays: executing external command ,,x2gopath'' with args: libexec May 24 09:22:50 test-triolet x2gogetdisplays: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getdisplays,test-triolet May 24 09:22:50 test-triolet x2gogetdisplays: db_getdisplays called, server: test-triolet; return value: May 24 09:22:50 test-triolet x2gogetports: executing external command ,,x2gopath'' with args: libexec May 24 09:22:50 test-triolet x2gogetports: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getports,test-triolet May 24 09:22:50 test-triolet x2gogetports: db_getports called, server: test-triolet; return value: May 24 09:22:50 test-triolet /usr/bin/x2gostartagent: initializing new session with ID jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:51 test-triolet x2goinsertsession: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2goinsertsession: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: insertsession,50,test-triolet,jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:51 test-triolet x2goinsertsession: db_insertsession called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, server: test-triolet, session ID: jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:51 test-triolet x2gogetports: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2gogetports: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getports,test-triolet May 24 09:22:51 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:51 test-triolet x2gogetports: db_getports called, server: test-triolet; return value: May 24 09:22:51 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:51 test-triolet x2goinsertport: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2goinsertport: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: insertport,test-triolet,jkirszling-50-1527146570_stDXFCE_dp24,30246 May 24 09:22:51 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2gogetstatus'' with args: jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:51 test-triolet x2gogetstatus: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2gogetstatus: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getstatus,jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:51 test-triolet x2goinsertport: db_insertport called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, server: test-triolet, SSH port: 30246 May 24 09:22:51 test-triolet x2gogetstatus: db_getstatus called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, return value: R May 24 09:22:51 test-triolet x2gocleansessions: jkirszling-50-1527146570_stDXFCE_dp24: state file for this session does not exist: /tmp/.x2go-jkirszling/C-jkirszling-50-1527146570_stDXFCE_dp24/state (this can be ignored during session startups) May 24 09:22:51 test-triolet x2gogetports: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2gogetports: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getports,test-triolet May 24 09:22:51 test-triolet x2gogetports: db_getports called, server: test-triolet; return value: |30246| May 24 09:22:51 test-triolet x2goinsertport: executing external command ,,x2gopath'' with args: libexec May 24 09:22:51 test-triolet x2goinsertport: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: insertport,test-triolet,jkirszling-50-1527146570_stDXFCE_dp24,30247 May 24 09:22:52 test-triolet x2goinsertport: db_insertport called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, server: test-triolet, SSH port: 30247 May 24 09:22:52 test-triolet x2gogetports: executing external command ,,x2gopath'' with args: libexec May 24 09:22:52 test-triolet x2gogetports: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getports,test-triolet May 24 09:22:52 test-triolet x2gogetports: db_getports called, server: test-triolet; return value: |30246| |30247| May 24 09:22:52 test-triolet x2goinsertport: executing external command ,,x2gopath'' with args: libexec May 24 09:22:52 test-triolet x2goinsertport: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: insertport,test-triolet,jkirszling-50-1527146570_stDXFCE_dp24,30248 May 24 09:22:52 test-triolet x2goinsertport: db_insertport called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, server: test-triolet, SSH port: 30248 May 24 09:22:52 test-triolet /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS May 24 09:22:52 test-triolet /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS May 24 09:22:52 test-triolet /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: jkirszling-50-1527146570_stDXFCE_dp24 pre-start May 24 09:22:52 test-triolet /usr/bin/x2gostartagent: started nxagent: NX_TEMP=/tmp x2goagent X2GO_NXAGENT_OPTIONS (' -nolisten tcp') NOLISTOPT ('-nolisten tcp') X2GODPIOPTION_ ('-dpi 96') XDMCPPOPT ('') -SESSION_TYPE ('-D') NOEXITPARAM ('') -auth "XAUTHORITY" ('"/auto_home/jkirszling/.Xauthority"') agent_geometry ('-geometry 800x600') -name "SESSION_WINDOW_TITLE" ('"X2GO-jkirszling-50-1527146570_stDXFCE_dp24"') "NX_AGENT" ('":50"') 2>"SESSION_LOG" ('"/tmp/.x2go-jkirszling/C-jkirszling-50-1527146570_stDXFCE_dp24/session.log"') & May 24 09:22:52 test-triolet /usr/bin/x2gostartagent: creating new session: jkirszling-50-1527146570_stDXFCE_dp24 e38bf19b0d7abb0bc596dfb50f615d35 26820 162.38.105.222 30246 30247 30248 -1 -1 May 24 09:22:52 test-triolet x2gocreatesession: executing external command ,,x2gopath'' with args: libexec May 24 09:22:52 test-triolet x2gocreatesession: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: createsession,jkirszling-50-1527146570_stDXFCE_dp24,e38bf19b0d7abb0bc596dfb50f615d35,26820,162.38.105.222,30246,30247,30248,-1,-1 May 24 09:22:53 test-triolet x2gocreatesession: db_createsession called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, cookie: e38bf19b0d7abb0bc596dfb50f615d35, client: 162.38.105.222, pid: 26820, graphics port: 30246, sound port: 30247, file sharing port: 30248. telekinesis ctrl port: -1, telekinesis data port: -1 May 24 09:22:53 test-triolet /usr/bin/x2gostartagent: Failed to start X2Go Agent session with ID jkirszling-50-1527146570_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup. May 24 09:22:53 test-triolet /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS May 24 09:22:53 test-triolet /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS May 24 09:22:53 test-triolet /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: jkirszling-50-1527146570_stDXFCE_dp24 fail-start May 24 09:22:53 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:53 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:53 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:53 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2gogetstatus'' with args: jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:53 test-triolet x2gogetstatus: executing external command ,,x2gopath'' with args: libexec May 24 09:22:53 test-triolet x2gogetstatus: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getstatus,jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:53 test-triolet x2gogetstatus: db_getstatus called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, return value: R May 24 09:22:55 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:56 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:56 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:56 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2gogetstatus'' with args: jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:56 test-triolet x2gogetstatus: executing external command ,,x2gopath'' with args: libexec May 24 09:22:56 test-triolet x2gogetstatus: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getstatus,jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:56 test-triolet x2gogetstatus: db_getstatus called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, return value: R May 24 09:22:58 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2golistsessions_sql'' with args: test-triolet May 24 09:22:58 test-triolet x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec May 24 09:22:58 test-triolet x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,test-triolet May 24 09:22:58 test-triolet x2gocleansessions: executing external command ,,/usr/lib/x2go/x2gogetstatus'' with args: jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:58 test-triolet x2gogetstatus: executing external command ,,x2gopath'' with args: libexec May 24 09:22:58 test-triolet x2gogetstatus: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: getstatus,jkirszling-50-1527146570_stDXFCE_dp24 May 24 09:22:58 test-triolet x2gogetstatus: db_getstatus called, session ID: jkirszling-50-1527146570_stDXFCE_dp24, return value: R

1 0

command to start xfce4
by Dr. K. nick 21 May '18

21 May '18

Dear x2go team, according to x2goserver/bin/x2goruncommand xfce4 is being launched by executing xfce4-session 239 elif [ "$cmd" == "XFCE4" ] || [ "$cmd" == "XFCE" ]; then 240 cmd="/usr/bin/xfce4-session" According to https://docs.xfce.org/xfce/getting-started startxfce4 should be used to start xfce, at least from command line. /Command line// //Use //|startxfce4|//to start an Xfce session or choose //Xfce Session//from the login manager... /So why does x2go uses xfce4-session instead of startxfce4. Is this legacy or are there technical reasons for that? Marcin //

1 0

Re: [X2Go-Dev] Different behavior of X2Go Client from Desktop and TCE
by Ulrich Sibiller 18 May '18

18 May '18

On Thu, May 17, 2018 at 2:13 PM, Oleksandr Shneyder <o.shneyder(a)phoca-gmbh.de> wrote: > Nope, it looks for me, that nxproxy window get information about screens > from WM. If WM is not started, nxproxy get just the window geometry. > With started WM we have correct display information on server side. > Xinerama starts to work with WM even if X2Go Session already running. I > made some experiments like: > > 1. Starting tce without WM. > 2. Connect to TC with ssh. > 3. Open X2Go Session. At this moment Xinerama in X2Go session not > working. I have one big screen over two monitors. What exactly do you mean by "open x2go session"? > 4. Starting WM on the TC. At this moment Xinerama starts to work in the > running X2Go session immediately. > > It worked in TCE for me in 100% of cases. Independent when I'm starting > WM - before X2Go Client, after X2Go Client or even when X2Go Session > already running. I'll implement this solution in classic TCE and will > let my customers test it. I'd prefer understanding what's going on first. nxagent is running if (nxagentGrabServerInfo.grabstate == SERVER_GRABBED && nxagentGrabServerInfo.client != NULL) { /* * If any client grabbed the server it won't expect screen * configuration changes until it releases the grab. That could * lead to an X error because available modes are changed * in the meantime. */ #ifdef TEST fprintf(stderr, "nxagentChangeScreenConfig: Cancel with grabbed server (grab held by [%p]).\n", (void *) nxagentGrabServerInfo.client); #endif return 0; } pScreen = screenInfo.screens[screen] -> root -> drawable.pScreen; #ifdef TEST fprintf(stderr, "nxagentChangeScreenConfig: Changing config to %d x %d (%dmm x %dmm).\n", width, height, mmWidth, mmHeight); #endif r = nxagentResizeScreen(pScreen, width, height, mmWidth, mmHeight); if (r != 0) { if (nxagentOption(Xinerama) && (noRRXineramaExtension == FALSE)) { nxagentAdjustRandRXinerama(pScreen); } else { #ifdef DEBUG fprintf(stderr, "%s: Xinerama is disabled\n", __func__); #endif nxagentAdjustCustomMode(pScreen); } } And XineramaQueryScreens ins finally called in nxagentAdjustRandRXinerama. BUT: If nxagentAdjustRandRXinerama FAILS to get that data it will NOT fall back to the version you see but to reporting ONE screen (called NX1, IIRC). So all this fails somewhere else. Can you run an nxagent that has #define TEST and #define DEBUG enabledin in Screen.c? Uli

6 30

Bug#1300: X2Go Client: API for setpass between client and broker
by Mike Gabriel 16 May '18

16 May '18

Package: x2goclient Severity: wishlist Version: 4.1.1.1 Tags: patch X-Debbugs-Cc: o.schneyder(a)phoca-gmbh.de Hi Alex, a customer of mine is paying me to do some work on X2Go Client and X2Go Broker. While doing that, I noticed that the --change-broker-pass option in X2Go Client does not fully work together with the X2Go Session Broker. In fact, I could not find any implementation reference in earlier broker prototypes. I thus came up with some "API" for password setting. When the client sends the setpass task to the broker, it expects an answer (success or failure). I will scan for PASSWORD CHANGED: OK (or something else). Please take a look at the below patch, if it breaks something for your setups. If you have a different "API" for setpass, please let me know and I adapt the patch. Greets, Mike ``` diff --git a/src/httpbrokerclient.cpp b/src/httpbrokerclient.cpp index 1416348..19c6068 100644 --- a/src/httpbrokerclient.cpp +++ b/src/httpbrokerclient.cpp @@ -493,7 +493,7 @@ void HttpBrokerClient::slotPassChanged(bool success, QString answer, int) } if(!checkAccess(answer)) return; - + parsePwdChangedResult(answer); } void HttpBrokerClient::slotSelectSession(bool success, QString answer, int) @@ -546,6 +546,19 @@ void HttpBrokerClient::slotRequestFinished ( QNetworkReply* reply ) reply->deleteLater(); } +void HttpBrokerClient::parsePwdChangedResult(QString pwdchres) +{ + x2goDebug<<"Starting parser."; + QStringList lst=pwdchres.split("PASSWORD CHANGED: ",QString::SkipEmptyParts); + QString result = (lst[1].split("\n"))[0]; + x2goDebug<<"Password change result is: "<<result; + x2goDebug<<"Parsing has finished."; + if (result == "OK" ) + emit passwordChanged(config->brokerPass); + else + emit passwordChanged(QString::null); +} + void HttpBrokerClient::parseSession(QString sinfo) { config->sessiondata=""; diff --git a/src/httpbrokerclient.h b/src/httpbrokerclient.h index 3cb0eb0..bb578f6 100644 --- a/src/httpbrokerclient.h +++ b/src/httpbrokerclient.h @@ -63,6 +63,7 @@ private: private: void createIniFile(const QString& raw_content); void parseSession(QString sInfo); + void parsePwdChangedResult(QString pwdchres); void createSshConnection(); bool checkAccess(QString answer); ``` -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby mobile: +49 (1520) 1976 148 landline: +49 (4354) 8390 139 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de

2 1

Bug#1253: ssh broker : bad error feedback in interaction mode
by Walid MOGHRABI 15 May '18

15 May '18

package: x2gobroker-ssh version: 0.0.4.0-0~972~ubuntu16.04.1 priority: bug Using the ssh broker is great because it adds the ability for the x2goclient to interact with the auth mechanism such as PAM so that you get notified that you need to renew a password for example. This is great but it doesn't always work well. For example, the user don't get the reason why the access is denied. Here are different tests I made based on the following setup : x2gobroker in ssh mode with local PAM auth based on Samba Winbind/Kerberos. I tried both situations to compare : * with the x2goclient in broker-ssh mode * with a term rying to connect through SSH 1) Account set for password change with temporary password in Active Directory, user type wrong password (neither old or new one) * with x2goclient: get message "Access denied. Authentication that can continue: publickey,password,keyboard-interactive" * with term : "Your account has been locked. Please contact your System administrator. Password: " 2) Account set for password change with temporary password in Active Directory, user type good password * with x2goclient: get a new password form in order to type (and confirm) the new password. Reseting password works and you get logged in to the broker with the sessions list displayed. However, if you click on the "cancel" button, x2goclient freeze and must be killed, you're not sent back to the login form. On the other hand, if you change your password and then be logged in, clicking on the session slot fails because this is the old password that is relayed to the session slot and not the new one. When it fails, you get a new login form to enter your password again, if you type the new password there, it works. * with term: "Password: ******" "Password expired. You must change it now." "Enter new password: ******" "Enter it again: ******" If you cancel (ctrl+c), nothing happen and you get back to the prompt. If you enter the good old password, you're prompted to change it then you're logged in. If you enter the wrong password, your prompted to retry 2 times then you get this message "Your account has been locked. Please contact your System administrator" (this is our security policy, this is normal behaviour, 2 fauils then blocked for 10mn. 3) Account disabled in Active Directory * with x2goclient: get message "Access denied. Authentication that can continue: publickey,password,keyboard-interactive" * with term : "Your account has been locked. Please contact your System administrator. Password: " Would be great to fix the issues in 2) and would be great to retrieve the error message directly from PAM so that we get the reason. Regards, Walid Moghrabi TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3 --- DISCLAIMER: This e-mail is private and confidential and may contain proprietary or legally privileged information. It is for the intended recipient only. If you have received this email in error, please notify the author by replying to it and then destroy it. If you are not the intended recipient you must not use, disclose, distribute, copy, print or rely on this e-mail or any attachment. Thank you

3 2

Bug#1252: X2Go issue (in src:x2gobroker) has been marked as pending for release
by Mike Gabriel 15 May '18

15 May '18

tag #1252 pending fixed #1252 0.0.4.0 thanks Hello, X2Go issue #1252 (src:x2gobroker) reported by you has been fixed in X2Go Git. You can see the changelog below, and you can check the diff of the fix at: http://code.x2go.org/gitweb?p=x2gobroker.git;a=commitdiff;h=638d820 The issue will most likely be fixed in src:x2gobroker (0.0.4.0). light+love X2Go Git Admin (on behalf of the sender of this mail) --- commit 638d82037e6d0cfb71c759667cccad24fbe7a874 Author: Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Date: Tue May 15 14:36:16 2018 +0200 update debian/changelog from Git history diff --git a/debian/changelog b/debian/changelog index a119984..4e346a2 100644 --- a/debian/changelog +++ b/debian/changelog @@ -14,20 +14,91 @@ x2gobroker (0.0.4.0-0x2go1) UNRELEASED; urgency=medium check_profile_acls() method. (Fixes: #1234). - x2gobroker/tests/test_web_plain_base.py: Add test case for passwords with accentuated characters (using the testsuite_authmech for now). + - Makefile: Support skipping installation of the x2gobroker PyModule. + Useful when building with CDBS on Debian. + - Makefile: Compress man pages. + - Makefile: Run setup.py build at build time. + - tmpfiles.d utilization: Create RUNDIR/x2gobroker via tmpfiles.d system. + Fixes missing dir and flawed permissions when running under systemd. + - etc/x2gobroker.conf: Mention the per-profile option for enabling/disabling + load checker support. + - sbin/{x2gobroker-pubkeyauthorizer,x2gobroker-keygen}: Use proper octal + numbers for file permissions. + - sbin/x2gobroker-pubkeyauthorizer: Fix key lookup in os.environ for + Python3. + - sbin/x2gobroker-pubkeyauthorizer: Some string/bytecode fixes for Python3. + Plus urllib -> urllib.request. + - sbin/x2gobroker-pubkeyauthorizer: Improve key integrity checker and move + it further up. Plus one more Python2 -> Python3 issue fixed. + - sbin/x2gobroker-pubkeyauthorizer: Drop unused binascii import. + - x2gobroker-pubkeyauthorizer: Tiny Python2to3 fix. + - load checker integration: Make the default-use-load-checker option work + like all other default-* options. + - uccs frontend: Convert datetime.datetime object to string before answering + the http request with it. + - x2gobroker/agent (check_load()): Bail out if no remote agent is given. + - x2gobroker-testagent: Convert to Python3 (using 2to3 tool). + - x2gobroker-loadchecker: Python3'ify iteration over dict keys. + - x2gobroker/utils.py: Provide helper functions for pretty-formatting key + fingerprints. + - x2gobroker-keygen: Use new fingerprint formatting functions. + - x2gobroker/agent.py: Bail out if no hostaddr contained in remote_agent. + - x2gobroker/agent.py: No load-checking when remote_agent is set to 'LOCAL'. + - x2gobroker/agent.py: Better sanity checks for remote_agent and its dict + keys hostname and hostaddr. + - x2gobroker/loadchecker.py: Report properly to the logger if we fail to + obtain a load factor. + - x2gobroker-loadchecker.service: loadchecker service needs to chuid to + system user x2gobroker. (Closes: #1252). + - x2gobroker-loadchecker.service: File ownership should be + x2gobroker:x2gobroker, too. + - x2gobroker-loadchecker: No chown/chmod if we are not running as root + (which is mostly the case). + - x2gobroker/brokers/inifile_broker.py: Make sure profile['name'] has a + fallback if not given in the session profile. + - x2gobroker/brokers/inifile_broker.py: Also check for presence of 'host' + and 'sshport'. + - UCCS API change for X2Go Sessions: Rename "SessionType" to "Command". + - obligatory profile keys: Move from inifile backend to UCCS frontend, as + those requirements are frontend specific. + - UCCS: Start working on API version 5. + - x2gobroker/uccsjson.py: Hide private Python class properties from JSON + dict (like <obj>._api_version). + - UCCS frontend: Fix API version check. + - UCSS frontend: Propagate API version onwards to the X2GoServer JSON + generator class. + - infile broker backend: Fix handling of empty lists in session profile + and session profile defaults. + - etc/x2gobroker-wsgi.apache.*: Drop Apache2.2 support. + - Log to system broker.log file when run via x2gobroker-ssh. + * debian/*: + + Trigger Makefile's install target and install those files. Drop debhelper from-source-installation magic. * debian/{control,compat}: Bump to DH version level 9. * debian/{control,x2gobroker-common.install}: + Split out common files into non-Pythonian bin:pkg. - * debian/*.install: Add EOLs at EOF. + * debian/*.install: + + Add EOLs at EOF. + + Add tmpfiles.d files into bin:pkgs. + + Fix installation to /usr/lib/python3.x paths. * debian/control: + Drop from D (several bin:pkgs): python3-argparse, argparse is shipped with Python3 core. + Switch from libapache2-mod-wsgi to libapache2-mod-wsgi-py3. + + Add B-D: dh-python. + * debian/x2gobroker-loadchecker.postinst: + + Do chown/chmod on the correct file (not authservice.log, but loadchecker.log). * x2gobroker.spec: + Adapt to Python3 port. + Bump package version. + CentOS 6 + 7 have python34-devel, not python3-devel. + Enable debug_packages for openSUSE Tumbleweed (suse_version > 1500). + CentOS 6 + 7 have python34-setuptools, not python3-setuptools. + + Fix removal of conf files in tmpfiles.d where needed. + + Install tmpfiles.d configs into bin:pkgs. + + Only install tmpfiles.d configs on systems that support/have systemd. + + Some path fixes for the new tmpfiles.d/. + + Make sure the build chroot has all it needs to run the PyModule's unit tests. + + Let's try to get unit tests working on Fedora first... -- X2Go Release Manager <git-admin(a)x2go.org> Wed, 05 Apr 2017 20:01:48 +0000

2 1

Bug#1252: ssh broker : load balancing not working
by Walid MOGHRABI 15 May '18

15 May '18

package: x2gobroker-ssh version: 0.0.4.0-0~972~ubuntu16.04.1 priority: bug Hi, Tried using x2gobroker-ssh (0.0.4.0-0~972~ubuntu16.04.1) instead of classical http broker and finaly got it working but in ssh mode, load balancing on my server farm is not working, every session is redirected to the same server (the first one) while it is balanced correctly with the http broker on the same broker server. I would love to send logs but it seems this broker don't produce log files or I couldn't find a way to get them. Regards, Walid Moghrabi TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3 --- DISCLAIMER: This e-mail is private and confidential and may contain proprietary or legally privileged information. It is for the intended recipient only. If you have received this email in error, please notify the author by replying to it and then destroy it. If you are not the intended recipient you must not use, disclose, distribute, copy, print or rely on this e-mail or any attachment. Thank you

3 2

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