There's a bug in VNC Server that shows up in Linux causing it to refuse
connections due to a buffer overflow.
Attached is a patch. I can't take credit, though. I found the fix by
searching VNC mailing list archives.
http://www.uk.research.att.com/vnc/archives/2000-03/0144.html
To use the patch:
tar xvzf vnc-3.3.3r1_unixsrc.tgz
cd vnc_unixsrc
patch -c -p0 < vnc_unixsrc_linux_patch
If for some reason that doesn't work, just edit the patched source file
manually. It's only a one line change.
BTW If you use VNC on lots of machines I have a simple install script for
easing installation. I suppose I should learn how to write a .spec file
and create an rpm.
Oh, and your old session is lost. Kill the Xvnc process.
R.
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 26, 2000 4:51 PM
> To: [EMAIL PROTECTED]
> Subject: Rescuing a VNC session
>
> Sometimes I'll leave my VNC viewer open on Windows, connected to the Linux
> VNC server, and when I come back it will have closed for some reason. But if
> I telnet to the linux box, all the apps that I left open are still open, and
> running, and even the VNC server is still running. But if I try to reconnect
> the client, even with the "request shared session" option, it will
> authenticate and start to open up the viewer window, then suddenly close.
> And there's nothing I can see to do about it. Has anyone else had this
> trouble, and is there any other way to reconnect to that xsession in order
> to, for instance, save my work?
>
> JW
>
>
>
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> _______________________________________________
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######## patch -c -p0 < vnc_unixsrc_linux_patch
*** Xvnc/programs/Xserver/hw/vnc/hextile.c Thu Aug 24 11:09:16 2000
--- Xvnc/programs/Xserver/hw/vnc/hextile.c Thu Aug 24 11:11:45 2000
***************
*** 120,126 ****
if (ry+rh - y < 16) \
h = ry+rh - y; \
\
! if ((ublen + 1 + 16*16*(bpp/8)) > UPDATE_BUF_SIZE) { \
if (!rfbSendUpdateBuf(cl)) \
return FALSE; \
} \
--- 120,126 ----
if (ry+rh - y < 16) \
h = ry+rh - y; \
\
! if ((ublen + 1 + (2 + 16*16)*(bpp/8)) > UPDATE_BUF_SIZE) { \
if (!rfbSendUpdateBuf(cl)) \
return FALSE; \
} \
