topic Re: VNC log out how to log in in Operating System - Linux

VNC log out how to log in

Gary L — Mon, 13 Aug 2007 15:29:28 GMT

Hi

I open a linux remote virtual desktop via VNC (version E4.2.9). Just now, I did a "Log Out" via main menu - log out - ok. But, I meet problem when I wanna log in. The VNC window no any log in prompt like real linux desktop. No available on mouse right/left only F8 key.
How can I re-login in this VNC window? ( I know, I could kill this process of VNC xxx:1 and startup another VNC process via command vncserver).
Any answers will be very appricate

Re: VNC log out how to log in

Stuart Browne — Tue, 14 Aug 2007 01:38:39 GMT

Yeah, this happens because the VNC session launches a single instance of the windows manager, and when you exit it, there's nothing left to do with the empty X server.

Start by looking at the '~/.vnc/xstartup' routine. The last line should be your windows manager.

Re: VNC log out how to log in

Steven E. Protter — Tue, 14 Aug 2007 07:09:06 GMT

Shalom,

ps -ef | grep vnc

Lets get a handle on whether the process is dead or not. I'm not sture at this point.

SEP

Re: VNC log out how to log in

Gary L — Tue, 14 Aug 2007 08:13:53 GMT

Hi Stuart Browne and SEP

Thank you very much for your help.
Have a great day.

Re: VNC log out how to log in

Gary L — Tue, 14 Aug 2007 08:24:32 GMT

Hi Stuart Browne

Below is my xstartup file
#cat .vnc/xstartup
#!/bin/sh

# Uncomment the following two lines for normal desktop:
# unset SESSION_MANAGER
# exec /etc/X11/xinit/xinitrc

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
exec gnome-session &

the last line is execute "Gnome" desktop when startup VNC, right? So, which one is my windows manager?

I have a another way to fix it, kill -9 "server1:1" process and re-start "vncserver". But, when I kill server1:1 and restart the nmuber became server:2, when kill :2 restart, number becaume :3. So, how to let the system use the server1:1 "1" again? is there a configuration file and parameter that let vncserver re-use.

thanks

Re: VNC log out how to log in

Stuart Browne — Tue, 14 Aug 2007 15:58:06 GMT

Assuming it's installed as a service, then you should just be able to 'service vncserver restart'.

'gnome-session' is your windows manager / desktop.

When you Log Out, that's what you are exiting.

Re: VNC log out how to log in

Alexander Chuzhoy — Wed, 15 Aug 2007 02:00:48 GMT

To start the vnc on specific port - 1 for example (assuming this port isn't occupied by already running session) do:
vncserver :1

to stop:
vncserver -kill :1

There's a file /etc/sysconfig/vncservers,
where you can configure the vnc to start on specific port(s) for specific user(s).Thus every time you'll reboot your system, the VNC will start listening on these ports.

Re: VNC log out how to log in

Gary L — Wed, 15 Aug 2007 08:32:56 GMT

Hi Alexander and Stuart

Thank you very much for your kindly help.

I know, vncserver restart and vncserver:1 can fix it. But, I remember there is a Linux server of our company can automatic use the lowest number via "vncserver" when the VNC process of the lowest number be stopped. For example: server:1 for root, server:2 for oracle. kill the process of server:1. root run "vncserver" again. It still used server:1 not server:3. Probably, I should remove some files or change some configurations of VNC.
But, It doesnâ t matter , I could use vncserver:1 to reuse the specific number.

Thanks

Re: VNC log out how to log in

Gary L — Wed, 15 Aug 2007 09:16:23 GMT

I find a method could reuse the lowest number via "vncserver"
cd /tmp

ll -al you will find some files like these: .X0-lock .... .X7-lock

rm -r .X*

vncserver

reuse :1 not :8