RE: [squid-users] Reverse Proxy Multiple IP Addresses

Jerry,

That is true the servers are the same but each client needs to return
the same backend server each time. Could that be done?

Brad

-----Original Message-----
From: Jerry Thomas [mailto:thomasj@scoregroup.com]
Sent: Wednesday, August 31, 2005 2:34 PM
To: Brad Taylor
Subject: RE: [squid-users] Reverse Proxy Multiple IP Addresses

Hi Brad,

I thought in your previous email you said that the 3 servers were
essentially the same, they were serving the same content? If so then I
would assign those three IPs to the squid boxe. If not I would still
assign those 3 ips to the squid server and use a redirector instead of
the 3 separate squid instances.

Jerry

On Wed, 2005-08-31 at 14:12 -0400, Brad Taylor wrote:
> The problem with that is the 3 IPs need to proxy for 3 different web
> servers (3 IPs).
>
> -----Original Message-----
> From: Jerry Thomas [mailto:thomasj@scoregroup.com]
> Sent: Wednesday, August 31, 2005 1:55 PM
> To: Brad Taylor
> Cc: Squid Users
> Subject: RE: [squid-users] Reverse Proxy Multiple IP Addresses
>
> Hi Brad,
>
> I am a little confused it sounds like you are just try to put a squid
> server in front of 3 apache servers. I guess they used to be LB'd
> somehow.
>
> When I said:
> Configure the squid server to listen to the 3 ips, I meant to set up
ip
> aliasing on the particular ethernet interface. Then just set http_port
> to 80.
>
> This will be incredibly more efficient than running 3 squids
processes.
>
> >From my personal experience I had 8 dedicated apache servers running
a
> cluster. I was able to get it down to 2 servers running a custom
> compiled squid and two apache backend servers.
>
> I had to have the second apache in case of issues but they were both
> lightly loaded. Hopefully you will be able to do the same.
>
> Jerry
>
> On Wed, 2005-08-31 at 12:30 -0400, Brad Taylor wrote:
> > Thanks.
> >
> > I'm replying so this gets put in the archives.
> >
> > I think you also need to add something about the PID in the conf
file
> so
> > squid will run under a different PID #
> >
> > -----Original Message-----
> > From: Jerry Thomas [mailto:thomasj@scoregroup.com]
> > Sent: Wednesday, August 24, 2005 12:17 PM
> > To: Brad Taylor
> > Subject: Re: [squid-users] Reverse Proxy Multiple IP Addresses
> >
> > Hi,
> >
> > Reassign the ips of the real servers.
> >
> > Configure the squid server to listen to the 3 ips this has to be
done
> in
> > your OS.
> >
> > If you can just set http_port to 80 squid will listen and answer all
> > requests on all interfaces/ips.
> >
> > if not set http_port like so:
> >
> > http_port 172.16.0.2:80 172.16.0.3:80 172.16.0.4:80
> >
> > If the squid is set up correctly and you don't have too many dynamic
> > objects one dedicated squid and one dedicated apache will handle the
> > load fine.
> >
> > If not you will need to set up 3 dns records for all the accelerated
> > servers and use round robin LB.
> >
> > like so:
> >
> > accelhost 172.16.0.5
> > accelhost 172.16.0.6
> > accelhost 172.16.0.7
> >
> > then set
> >
> > httpd_accel_host accelhost
> >
> > I had some issues with the round robin LB but I was trying o do it
> with
> > the hosts file so you should look into this.
> >
> > Good Luck,
> > Jerry
> >
> > On Wed, 2005-08-24 at 11:05 -0400, Brad Taylor wrote:
> > > I'd like to know how to reverse proxy multiple IP addresses or run
> > > multiple squids on one box to do this. They are not different
> domains
> > so
> > > I can't use host headers. Basically I'd like Squid to accept http
> > > requests on 3 different IP addresses and proxy for 3 different IP
> > > addresses (3 real servers). The 3 real servers have the same
content
> > so
> > > I would like to not have to have 3 separate squid boxes.
> > >
> > > Can Squid do this, I'm not able to find it anywhere in the FAQ or
> the
> > > Squid book. Thanks your any help.
> > >

-- 
Jerry Thomas            thomasj@scoregroup.com
I.T. Director           ph. 305-662-5959 ext. 242
The SCORE Group         fax 305-662-8922