[K12OSN] setting quotas per user to solve our slow login process

[Gideon Romm]

On Fri, 2009-09-11 at 12:38 -0400, Gideon Romm wrote:
> On Fri, 2009-09-11 at 10:25 -0400, Daniel Howard wrote:
> > Dan Young wrote:
> > > Sounds like:
> > > https://bugs.launchpad.net/ltsp/+bug/357268
> > >
> > > If you're not using localapps, you can test to see if this is the bug by:
> > >
> > > cd /opt/ltsp/i386/usr/share/ldm/rc.d/
> > > mv X01-localapps oldX01-localapps
> > >
> > > Then reboot your terminal.
> > Thanks Dan.  We tried it to no avail.  This seems like a bug because we 
> > switched a server back to K12LTSP and had 1000+ accounts up, no problem, 
> > boot up in seconds.  Unfortunately that is likely to be the solution for 
> > the time being until we can resolve the large number of accounts/slow 
> > bootup issue with K12Linux, or anyone can suggest other avenues for us 
> > to explore.  Thanks, Daniel
> 
> Daniel,
> 
> K12LTSP is based on LTSP5, which uses ssh to login to the server.  Can
> you test to see if running:  ssh -Y user at server  from another box takes
> a long time?
> 
> If so, then add "-vvv" to the ssh command line, like:  ssh -vvv -Y
> user at server
> 
> This will make ssh verbose and you will see at what point it hangs.  
> 
> By default, sshd on the server runs through several authentication
> mechanisms, and if it takes earlier/unused ones time to fail, you'll
> feel it.  You can optimize things by identifying the one that fails and
> turning it off in the sshd_config file.  A common one I have seen is:
> GSSAPIAuthentication
> 
> Sometimes, setting that to "no" will speed up ssh logins a great deal.
> 
> -Gadi
> 

Oops! I meant to say "K12Linux is based on LTSP5"

-- 
--------------------------------------------------------
Gideon Romm | Proud LTSP Developer
ltsp at symbio-technologies.com

Pay It Forward!  
Intel Atom 1.6GHz, 512MB RAM + Symbiont Boot Stick = $275
10% of order goes to school or open source project of your choice!

Buy yourself a lab or office and use your donation to set up a school,
pay for a desperately needed feature added to a software package,
or sponsor part of LTSP's annual developer's conference LTSP-by-the-sea!

Check out:  http://www.symbio-technologies.com/payitforward