[K12OSN] Server load balancing, made easy
M.Pribik
mpribik at zoznam.sk
Tue Mar 8 07:40:23 UTC 2005
I don't have any experience with this solution of the load balancing , but
if it works /it seems it does/ it is briliant
and natural solution.
Marian
----- Original Message -----
From: "Jonathan Carter" <jonathan at shuttleworthfoundation.org>
To: "Support list for opensource software in schools." <k12osn at redhat.com>
Sent: Tuesday, March 08, 2005 7:01 AM
Subject: Re: [K12OSN] Server load balancing, made easy
> Hi!
>
> I want to set up a lab with two servers and load balancing, and I've
> found the post below. Is this a good way of doing it? Do anyone perhaps
> know of some links that points to other methods of doing the below?
>
> I must admit, I'm not familiar with rsync. How do I rsync between two
> servers' home directories if one server is 192.168.0.254 and the other
> one 192.168.0.253?
>
> thanks
> Jonathan
>
> Barry R Cisna wrote:
> > Here is an easy/quick way to acheive load balancing between K12LTSP
> > servers for your LAN..
> >
> > We have our school under a two subnet setup ( elem & high school)
> > This setup works in conjunction with a windows network with no
> > mods,,to your existing switches,wiring,etc.
> > Our windows network is on a 172.28.x.x network on each subnet as
well,
> > I have the LTSP netowrk setup..to the default setup,,of 192.168.0.x
> > on both subnets.
> > I have two K12LTSP servers feeding into each subnet.( total four).
> > Make sure you have disabled DHCP on your firewall..and windows
> > servers...
> > Then,, simply run parallel,,DHCP servers( enable DHCP,,on all of
> > your K112LTSP servers,and then all you have to do is hardcode,, the IP
> > settings,,on your teachers/staff windows boxes,,( we are trying to get
> > (almost) completly away from win doze),,
> > If you have DHCP enabled on your windows servers some clients will
> > boot up ok,,and some will "kernel panic",,
> > When your clients bootup under this scenario ..they will randomly
> > "access" the least busyest server,and will usually end up about 50/50to
> > each sevrer feeding them, in a given room of puters,,
> > You will not need to even do any config in your hosts.conf...etc..
> > then, just do a scheduled cron job ,hourly with rsync of your
> > students home folders( unless your have a centralized server for home
> > folder redirection),,
> > this may be a overly simplistic approach,,but works great for our
> > school scenario.
> > I tryed to get the XDMCP chooser to work,on clients,,but was too
> > time consuming.and this approach is "seamless".
> > Just thought this may help some people trying to "build out" on
> > their existing K12lTSP setup..
> >
> > hope this is of some help to someone,,
> >
> > Take care...
> >
> >
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