Re: How to run VNC thru ssh (openssh question)
On Mon, 20 Mar 2006, Siegfried Heintze wrote: > >I used to use the following all the time to access my Windows machine > >remotely: > > >ssh -f -L 5901:localhost:5900 -N -C -o Compression=yes -o > >CompressionLevel=9 > > > >vncviewer & > > >YMMV. > > >Obviously, you need to make sure that the port ssh is using is open > >through any firewall. > > >None of this is really Cygwin-specific so further discussion on this l > >list along this line is really off-topic though. > > H... I hope that is not true. I hope this is on topic because I think it > is an issue with installing ssh. I get the following error when I try the > command above: > > No matching comp found: client zlib server none,[EMAIL PROTECTED] > > I tried leaving off the -o and compression flags, but this did not help. I > got the same error until I removed the -C and then it did not even give me > an error message (and still did not work). > > Thanks, > Siegfried Again, as Larry said, this is off-topic, but I use the following neat batch file to tunnel VNC over ssh, where ssh runs only as long as the VNC session is open, and then quits. In fact, I wouldn't even need a batch file if I had the RealVNC directory in my system PATH. @echo off cd C:\Program Files\RealVNC vncviewer.exe | c:\cygwin\bin\ssh -L 5900:127.0.0.1:590%1 %2 "cat >/dev/null" The two parameters to the batch file are the display number (0, 1, etc) and [EMAIL PROTECTED] HTH, Igor -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_[EMAIL PROTECTED] | [EMAIL PROTECTED] ZZZzz /,`.-'`'-. ;-;;,_Igor Peshansky, Ph.D. (name changed!) |,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! "Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte." "But no -- you are no fool; you call yourself a fool, there's proof enough in that!" -- Rostand, "Cyrano de Bergerac" -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/
Re: How to run VNC thru ssh (openssh question)
Siegfried Heintze wrote: >> I used to use the following all the time to access my Windows machine >> remotely: >> >> ssh -f -L 5901:localhost:5900 -N -C -o Compression=yes -o >> CompressionLevel=9 >> >> vncviewer & >> > H... I hope that is not true. I hope this is on topic because I think it > is an issue with installing ssh. I get the following error when I try the > command above: > > No matching comp found: client zlib server none,[EMAIL PROTECTED] > > I tried leaving off the -o and compression flags, but this did not help. I > got the same error until I removed the -C and then it did not even give me > an error message (and still did not work). > I'm no expert, but... -C and -o Compression=yes are the same option, so it'll fail due to what looks like an incompatibility between versions of ssh I think. See: http://archive.netbsd.se/?ml=openssh-unix-dev&a=2005-10&t=1422256 If you leave compression off, then you won't get an error message because it's probably working. ssh with -f will just spawn in the background and return (-f implies -n, which redirects to /dev/null). [EMAIL PROTECTED] ~]$ ssh -C -N -f -L 5901:localhost:5900 [EMAIL PROTECTED] [EMAIL PROTECTED] ~]$ ps -elf | grep ssh 1 S me19430 1 0 75 0 - 1117 - 10:42 ?00:00:00 ssh -C -N -f -L 5901:localhost:5900 [EMAIL PROTECTED] You don't say *how* it's not working, but if you're using "5901:localhost:5900" as the tunnel, you'll need to connect vncviewer to localhost:1 not just localhost. - Si -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/
Re: How to run VNC thru ssh (openssh question)
Siegfried Heintze wrote: I used to use the following all the time to access my Windows machine remotely: ssh -f -L 5901:localhost:5900 -N -C -o Compression=yes -o CompressionLevel=9 vncviewer & YMMV. Obviously, you need to make sure that the port ssh is using is open through any firewall. None of this is really Cygwin-specific so further discussion on this l list along this line is really off-topic though. H... I hope that is not true. I hope this is on topic because I think it is an issue with installing ssh. I get the following error when I try the command above: No matching comp found: client zlib server none,[EMAIL PROTECTED] I tried leaving off the -o and compression flags, but this did not help. I got the same error until I removed the -C and then it did not even give me an error message (and still did not work). It is off-topic because there is nothing Cygwin-specific about the process to getting this working. So unless you can point to how this works on some other platform and not on Cygwin, you need to find a good book, site, or forum for ssh tunneling information. Consulting the man page is a good start if you haven't already. I don't know what lines you typed to get the above error but I'm guessing from the error you typed: ssh -f -L 5901:localhost:5900 -N -C -o Compression=yes -o CompressionLevel=9 [EMAIL PROTECTED] I can't reproduce your issue. When I try it, it tells me: ssh: connect to host openssh.com port 22: Connection timed out -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 838 Washington Street (508) 893-9889 - FAX Holliston, MA 01746 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/
