> Happy New Year to the list! > > I use tigervnc on Stretch to provide remote access to my machine from > a > variety of devices. I'm running VNC over an OpenVPN VPN but I don't > THINK that is relevant to the problem. > > If I start tigervnc as the same user I log into Gnome as, I have no > problem. I find I can connect from a variety of client devices including > iDevices, Windows machines, and Android devices, and it works very well. > > However, I would like to use this mechanism to also allow a friend to > access my machine remotely, the friend is a Mac user. I have no need > or > desire to access the existing X session, just getting any graphical > desktop environment remotely is the goal. Sitting in front of his Mac > I > can connect to my machine and log in as me and it all works. But I want > him to log in as him, not me. I believe that is going to require a > second instance of tigervnc server, especially as it is possible that > in > the future we might both be accessing the machine remotely at the same > time from different places. If I try to run an additional tigervnc > server on my machine as HIS account on my machine, that fails to start with: > > $ tigervncserver > > Warning: kazuki.local:1 is taken because of /tmp/.X11-unix/X1 > Remove this file if there is no X server kazuki.local:1 > /usr/bin/xauth: timeout in locking authority file /run/user/1000/gdm/Xauthority > /usr/bin/xauth: timeout in locking authority file /run/user/1000/gdm/Xauthority > > New 'kazuki.local:2 (richard)' desktop at :2 on machine kazuki.local > > Starting applications specified in /etc/X11/Xvnc-session > Log file is /home/richard/.vnc/kazuki.local:2.log > > Use xtigervncviewer -SecurityTypes VncAuth,TLSVnc -passwd /home/richard/.vnc/passwd kazuki.local:2 to connect to the VNC server. > > > tigervncserver: Failed command '/etc/X11/Xvnc-session': 256! > > =================== tail -15 /home/richard/.vnc/kazuki.local:2.log =================== > Killing Xtigervnc process ID 12775... which seems to be deadlocked. Using SIGKILL! > > Xvnc TigerVNC 1.7.0 - built Apr 9 2017 14:38:13 > Copyright (C) 1999-2016 TigerVNC Team and many others (see README.txt) > See http://www.tigervnc.org for information on TigerVNC. > Underlying X server release 11903000, The X.Org Foundation > > > Sun Dec 31 23:34:35 2017 > vncext: VNC extension running! > vncext: Listening for VNC connections on all interface(s), port 5902 > vncext: created VNC server for screen 0 > XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":2" > after 173 requests (173 known processed) with 0 events remaining. > Killing Xtigervnc process ID 13234... which seems to be deadlocked. > Using SIGKILL! > > ======================================================================= > =============== > > > Starting applications specified in /etc/X11/Xvnc-session has failed. > Maybe try something simple first, e.g., > tigervncserver -xstartup /usr/bin/xterm > > > > I understand that the very first two lines of the above are not a > problem, just tigervnc reporting that it found the local X environment > (Gnome) running on the machine that I use when I am sitting in front of > it. But the rest doesn't look healthy... > > > /etc/X11/Xvnc-session contains: > > #! /bin/sh > > test x"$SHELL" = x"" && SHELL=/bin/bash > test x"$1" = x"" && set -- default > > vncconfig -iconic & > $SHELL -l <<EOF > exec /etc/X11/Xsession "$@" > EOF > vncserver -kill $DISPLAY > > > Now there is no way I wrote that, so I either copied it from a webpage > somewhere or that is what the tigervnc package installs by default. > > As I say this works when I run the server as me and try to log into it > as me. How can I set things up so I can log in as me, my friend can log > in as him, and not have to share passwords (which I just will not do, > come what may)? > > Googling about multiuser access to tigervnc results in a lot of pages > referring to files /etc/sysconfig/ which I guess is not a Debian thing > as my box doesn't have an /etc/sysconfig directory. > > Thanks > > Mark
One additional thing I have found -- the user richard had never logged into Gnome directly on the box. If I did that, I could then start a tigervnc instance as richard as normal. And, while logged into Gnome locally as richard, I also _could_ launch an instance of tigervnc as me after su - 'ing to my account (mark). I got the timeout errors but the server successfully started. Logging out of everything and logging back in as me, I can again start a server as me but attempting to start it as richard gets the same result as in my original post. I must be missing something obvious -- items I have found with Google either don't touch on this or else expect it to just work -- any suggestions where to look for a solution? Thanks Mark
