x2go-dev December 2016

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19 participants
123 discussions

Bug#236: x2goclient on mac ignores users language setting
by Anders Bruun Olsen 28 Feb '17

28 Feb '17

Package: x2goclient Version: 4.0.1.0 Severity: minor On Mac X2goclient will be shown in the language chosen at the time of installing OS X (system wide). If the user chose danish as the language upon first starting the machine, and then later changes the language to english for his account, x2goclient will still be in danish, despite everything else he starts being in english. -- Anders Bruun Olsen It-ansvarlig Det Danske Sprog- og Litteraturselskab (Society for Danish Language and Literature)

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Bug#234: x2goclient on mac without sshd reports error
by Anders Bruun Olsen 28 Feb '17

28 Feb '17

Package: x2goclient Version: 4.0.1.0 Severity: minor On Macs where sshd (system preferences -> sharing -> remote login) hasn't ever been enabled, there does not exist any ssh host key. X2goclient looks for this key (/etc/ssh_host_rsa_key.pub) and if it does not find it, it opens a dialog box, complaining that sshd isn't running and that filesharing and local printing won't work. This despite the session given by x2gobroker has these features disabled. X2goclient should only complain about none-running/working sshd if it is actually needed. -- Anders Bruun Olsen It-ansvarlig Det Danske Sprog- og Litteraturselskab (Society for Danish Language and Literature)

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Bug#1119: Fwd: [Bug 1399281] [abrt] x2goclient: privatekey_from_file(): x2goclient killed by SIGSEGV
by Orion Poplawski 26 Feb '17

26 Feb '17

Package: x2goclient https://bugzilla.redhat.com/show_bug.cgi?id=1399281 --- Comment #17 from Andreas Schneider <asn(a)redhat.com> --- Please open a bug for x2goclient upstream to use the new PKI API of libssh and not outdated functions. http://api.libssh.org/stable/group__libssh__pki.html#ga1c8f84137606b1585006… -- You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.

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Bug#1121: x2goclient Doesn't Use libssh Config File
by Matthew Rubenstein 22 Feb '17

22 Feb '17

Package: x2goclient Version: 4.0.5.1 Severity: wishlist Hello. x2goclient uses libssh but does not use a client config file the way libssh can, ssh_options_parse_config() http://api.libssh.org/master/group__libssh__session.html#ga82371e723260 c7572ea061edecc2e9f1 ~/.ssh/config or /etc/ssh_config are essential for client configuration of the ssh connection over which x2go sessions run. Among other important configurations are Ciphers and KexAlgorithms specifications, with which a client can require only trusted crypto algorithms or else refuse connection. The current code simply negotiates whichever algorithm is the first match in the hardcoded libssh list to whatever the remote sshd specifies (eg. in its sshd_config file). The agreed algorithm is currently not exposed to the x2goclient user, but specifying it in the client config file would make it knowable by the user depending on it. There are many other configurations the config file could specify, to make x2goclient meet user requirements, even just "work the same as my other ssh sessions" where libssh supports those features. The Session preferences dialog's Connection tab could expose a file open dialog to select a config file. That file open dialog could default to the user's .ssh directory, or else to the directory specified in the Session tab's "Use RSA/DSA key [...]" value if any. -- Matthew.Rubenstein(a)Blue-Green-Group.com 718-233-5097

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Bug#884: nxagent fails to run with "Could not open default font 'fixed'"
by devsk 05 Feb '17

05 Feb '17

Package: nx-libsVersion: 3.5.0.30Distro: Gentoo ~amd64, fully updated.x2goclient: 4.0.3.2x2server: 4.0.1.19nx-libs (package nx in gentoo): 3.5.0.30fontsproto: 2.1.3libXfont: 1.5.1xorg-server: 1.17.1All font packages for xorg-x11 are installed and fonts.dir and fonts.alias files are correctly present and readable.Detailed troubleshooting: https://forums.gentoo.org/viewtopic-p-7755384.html The client connects and the server spawns the nxagent but then the session is unexpectedly terminated. Looking at the server side log, we see: Info: Using shared memory parameters 1/1/0/0K. Info: Using alpha channel in render extension. Info: Not using local device configuration changes. keyboard file created Error: Aborting session with 'Could not open default font 'fixed''. Session: Aborting session at 'Tue May 26 23:22:22 2015'. Session: Session aborted at 'Tue May 26 23:22:22 2015'. I ran the nxagent through strace -ff -tt -v and its clear that it loads all fonts (at least it finds all font.alias and reads them fine) correctly. None of the children it spawns run into any issues with missing files or folders. The snippet below (you can read longer strace on gentoo forum post): 22:11:10.608011 open("/usr/share/fonts/100dpi/fonts.alias", O_RDONLY) = 4 22:11:10.608108 fstat(4, {st_mode=S_IFREG|0644, st_size=3154, ...}) = 0 22:11:10.608217 fstat(4, {st_mode=S_IFREG|0644, st_size=3154, ...}) = 0 22:11:10.608308 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f29ca5a9000 22:11:10.608398 read(4, "lucidasans-bolditalic-8 -b&h-luc"..., 4096) = 3154 22:11:10.608496 brk(0x1f01000) = 0x1f01000 22:11:10.608688 read(4, "", 4096) = 0 22:11:10.608781 close(4) = 0 22:11:10.608868 munmap(0x7f29ca5a9000, 4096) = 0 22:11:10.609148 write(2, "Error: Aborting session with '", 30Error: Aborting session with ') = 30 22:11:10.609277 write(2, "Could not open default font 'fix"..., 35Could not open default font 'fixed') = 35 22:11:10.609395 write(2, "'.\n", 3'. ) = 3 Looking at the code, the origin of the error is: InitFonts(); if (loadableFonts) { SetFontPath(0, 0, (unsigned char *)defaultFontPath, &error); } else { if (SetDefaultFontPath(defaultFontPath) != Success) ErrorF("failed to set default font path '%s'", defaultFontPath); } if (!SetDefaultFont(defaultTextFont)) FatalError("could not open default font '%s'", defaultTextFont); SetDefaultFont() is failing. Looking at that function (text below from IRC channel): [19:57] <devsk> SetDefaultFont(char *defaultfontname)[19:57] <devsk> {[19:57] <devsk> int err;[19:57] <devsk> FontPtr pf;[19:57] <devsk> XID fid;[19:57] <devsk> fid = FakeClientID(0);[19:57] <devsk> err = OpenFont(serverClient, fid, FontLoadAll | FontOpenSync,[19:57] <devsk> (unsigned) strlen(defaultfontname), defaultfontname);[19:57] <devsk> if (err != Success)[19:57] <devsk> return FALSE;[19:57] <devsk> pf = (FontPtr) LookupIDByType(fid, RT_FONT);[19:57] <devsk> if (pf == (FontPtr) NULL)[19:57] <devsk> return FALSE;[19:57] <devsk> defaultFont = pf;[19:57] <devsk> return TRUE;[19:57] <devsk> I have a feeling that LookupIDByType() is the one failing[19:58] <devsk> OpenFont() has error paths for malloc failures and none of those looked like plausible[19:58] <devsk> LookupIDByType() was obsoleted quite a while ago in xorg code[19:59] <devsk> nx-X11 of course is hanging onto old code[19:59] <devsk> is it possible that there is some interaction there with newer libXfont which is making that function fail now[20:00] <devsk> unfortunately for me, its not possible to go back to libXfont-1.4. There is a bunch of crap which needs to be downgraded as well. And dependency hell breaks loose if I try that[20:00] <devsk> above snippet is in ./programs/Xserver/dix/dixfonts.c I did this experiment for localhost connection to avoid differences in client and server packages (which is not the case anyway because for me both client and remote server are Gentoo ~amd64 updated systems). Anybody got any ideas of why this is happening? Is it really about the newer fontsproto and libXfont not being compatible with nx-libs? Thanks,devsk

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Bug#884: nxagent aborts session with 'Could not open default font 'fixed''
by devsk 05 Feb '17

05 Feb '17

Hi, As per suggestion I built the code from https://github.com/ArcticaProject/nx-libs. And I still run into the same issue. Does anybody here know that part of the code (snippet in the report)? -devsk

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Bug#731: if KRB5CCNAME is not set client-side, don't trigger the KRB5 delegation code
by Mike Gabriel 18 Jan '17

18 Jan '17

Package: x2goclient Severity: important Version: 4.0.3.1 If the $KRB5CCNAME envvar is not set, X2Go Client nonetheless tries to push the KRB5CCNAME file to the X2Go Server. This results in a Qt error message window, because the copy command (cp $KRB5CCNAME $KRBFL just before executing x2goruncommand) is only evoked with one parameter ($KRBFL, $KRB5CCNAME is unset). """ x2go-DEBUG-../sshprocess.cpp:449> ssh finished: false - "cp: Fehlender ZieldateiOperand hinter /home/mike/.x2go/C-mike-52-1420843691_stDMATE_dp24/krb5cc cp --help liefert weitere Informationen. " (5). """ Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.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#1126: x2go session disconnects causing an issue with a program or caused by an issue with a program
by Ulrich Langenbach 04 Jan '17

04 Jan '17

Package: x2goclient Version: 4.0.5.2-0~1205~ubuntu14.04.1 severity: critical The session disconnects at some 'arbitrary' point in a way. Today I hit the issue whilest running the client in debug mode: x2goclient --debug and got this message (line 119 in the attached log): x2go-DEBUG-../src/onmainwindow.cpp:6014> Proxy wrote on stderr: "Error: Can't add a message of 4143380232 bytes to write buffer. Error: Assuming error handling data in context [B]. Session: Terminating session at 'Sun Dec 18 18:48:08 2016'. One of the instances of the program run within the remote session stopped working with an internal error. Sometimes the session crashes completely so that also the servers X session is gone, although that might be a different issue. I run an up-to-date Ubuntu 14.04.5 LTS (kernel 3.13.0-105-generic, libc 2.19-0ubuntu6.9) and X2Go Client 4.0.5.2 installed via http://ppa.launchpad.net/x2go/stable/ubuntu. This is really annoying, especially as this may ruin some hours of work and/or compute. The bug seems to be only triggered by one of our most used EDA tools, Vivado, especially in its version 2016.2. As this issue is probably complicated to reproduce, find and fix, a workaround is also very appreciated. Thank you very much! Ulrich

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Bug#910: X2Go issue (in src:x2goclient) has been marked as pending for release
by Mihai Moldovan 24 Dec '16

24 Dec '16

tag #910 pending fixed #910 4.0.5.3 thanks Hello, X2Go issue #910 (src:x2goclient) 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=x2goclient.git;a=commitdiff;h=40f3d5c The issue will most likely be fixed in src:x2goclient (4.0.5.3). light+love X2Go Git Admin (on behalf of the sender of this mail) --- commit 40f3d5c78497a1363091ebcf7769105009a11439 Author: Mihai Moldovan <ionic(a)ionic.de> Date: Sun Dec 25 00:43:16 2016 +0100 src/x2goutils.cpp: don't try to wrap absolute paths as legacy resource URIs in wrap_legacy_resource_URIs (). Fixes: #910. diff --git a/debian/changelog b/debian/changelog index 9c0c954..a88869f 100644 --- a/debian/changelog +++ b/debian/changelog @@ -13,6 +13,8 @@ x2goclient (4.0.5.3-0x2go1) UNRELEASED; urgency=medium prompts. - src/sharewidget.cpp: fix compile on UNIX-like platforms by defaulting to ISO-8859-1 not just on Linux but also other platforms. Fixes: #1124. + - src/x2goutils.cpp: don't try to wrap absolute paths as legacy resource + URIs in wrap_legacy_resource_URIs (). Fixes: #910. [ Bernard Cafarelli ] * New upstream version (4.0.5.3):

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Bug#1128: SSH daemon failed to open its public host key.
by Kalle Tuulos 24 Dec '16

24 Dec '16

Package: X2Go Windows Client Version: 1. The steps you took to produce the bug When I opened X2Go connection to Linux host, I got following error message: 2. Any exact error messages ---8<---8<--- SSH daemon failed to open its public host key. You have enabled Remote Printing or File Sharing. These features require a running and functioning SSH server on your computer. Printing and File Sharing will be disabled for this session. The SSH server is currently not configured properly. .... ---8<---8<--- 3. What you expected to happen The connection should have worked flawlessly. 4. What actually happened Error message was given. Information: 1. The client machine's OS (e.g., “Windows 7 64-bit SP1” or “Ubuntu 12.04 32-bit”) Windows 10 64-bit 2. The client machine's version of X2GoClient, PyHoca-GUI or Pyhoca-CLI 4.0.5.2 3. Any relevant session settings in X2GoClient, PyHoca-GUI or Pyhoca-CLI No settings were changed from defaults. Permissions were given for Windows Firewall. 4. The server's OS Ubuntu 16.10.1 64-bit 5. The server's version of the x2goserver package 4.0.1.20-0~1125~ubuntu16.10.1 6- The server's version of the x2goserver-xsession package 4.0.1.20-0~1125~ubuntu16.10.1 7. The server's version of the nxagent package 2:3.5.0.32-0~668~ubuntu16.10.1 8. The server's version of any other relevant packages (e.g., if the bug as about MATE integration, the version of x2gomatebindings) N/A 9. Any relevant settings in X2GoServer (that you changed from the defaults) None. X2GoServer was installed through PPA.

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x2go-dev December 2016