Virtual Login server

[Joseph Mack NA3T]

On Tue, 12 Sep 2006, Tom Kavanaugh wrote:

> We are talking Linux/Unix here, no Windoze pls!.

this is still not clear. Why are you using vnc if there is 
no windows here? I'm also not clear on what you are trying 
to load balance - the login and/or the VNC sesssion and I 
don't know which boxes are where. How about a diagram of the 
setup without LVS, showing the OS, and the location of the 
VNC client/server, login client/server, job scheduler, where 
the graphics are displayed etc.

> Yes, all the current login servers in my env are RedHat Linux, Solaris.

I don't understand what they're doing, see below

> Users do run interactive graphics jobs on the compute grid. This does impose
> a load on the login servers. 10-15 users is what we would like to see on a
> single linux/solaris login server. Beyond that does slow down response.

OK

> Users ssh into one of these linux/solaris login servers and run the vnc
> server. The vnc server then gives them a vnc display number. The user then
> connects from his PC using the Windoze vnc client and points to the vnc
> server display number.

Why don't you have the clients VNC directly to the VNC 
server and start their jobs there?

>> did you look in the HOWTO?
> I already looked there, but did not find any info related to vnc logins.

that's the answer.

>> Do you know what ports are involved?
> VNC starts using ports from 5900. The first user is on port 5901, second on
> 5902, and so on.

OK you'll have to LVS the ssh connection that VNC is 
tunnelled through.

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!