Re: AW: AW: AW: [squid-users] Accelerator Mode with two different por ts

Then you will need

1. Two http_port directives in squid.conf to make Squid accept requests
on two different ports, same ports as for your real web servers.

2. "httpd_accel_port virtual", to make Squid remember which port it
accepted the request on.

3. "httpd_accel_host www.example.com" (www.example.com should be the
official web site name).

4. Enter www.example.com with the IP address of the real web server into
/etc/hosts of your Squid server, or use a split DNS providing different
information to your Squid than to the rest of the world.

5. Configure your web server with www.example.com as webserver name.
This is ServerName in Apache, other web servers have different
configuration, some decide automatically based on the request.

1-4 will make Squid accept the request as if they were for the real web
servers.

5 will make the web servers respond with correct links.

Regards
Henrik

tis 2003-04-22 klockan 12.53 skrev Digmayer, Markus:
> Ok,
> i think i understand now. I think your example URL b) is what wie need.
> How can i forward the requests to the correct webserver?
> Markus
>
>
> -----Ursprüngliche Nachricht-----
> Von: Henrik Nordstrom [mailto:hno@squid-cache.org]
> Gesendet: Dienstag, 22. April 2003 12:36
> An: Digmayer, Markus
> Cc: Squid Users
> Betreff: Re: AW: AW: [squid-users] Accelerator Mode with two different
> ports
>
>
> You still needs to decide on what URL the browser SHOULD contact in
> order to reach the second web server (i.e. what the links from the first
> web server SHOULD look like)
>
> I cannot help you unless you define what URL namespace you want to use
> for your two webservers.
>
> Regards
> Henrik
>
>
> tis 2003-04-22 klockan 11.35 skrev Digmayer, Markus:
> > Hi Henrik,
> > the users should allways see and use the Ip-address of the Proxy ( xxx.199.17 ).
> > They should never see the IP-Adress if the Webserver. Until now we didn't give them DNS-Names.
> > I think the second Webserver only presents the real files on port 8042, i think the PDFs will be generated by the get request.
> > When i try to get them my client ( IE5 ) tries to contact the second webserver instance directly (xxx.113.125:8042).
> > Maybe these are two different problems?
> > What can i do?
> > Regards,
> > Markus
> >
> >
> > -----Ursprüngliche Nachricht-----
> > Von: Henrik Nordstrom [mailto:hno@squid-cache.org]
> > Gesendet: Dienstag, 22. April 2003 10:58
> > An: Digmayer, Markus
> > Cc: Squid Users
> > Betreff: Re: AW: [squid-users] Accelerator Mode with two different ports
> >
> >
> > Let me rephrase the question:
> >
> >
> > What URLs do you want the end-users (i.e. browsers) to use for
> > referring to the two web server instances?
> >
> >
> > Once you have decided upon this there is two tasks:
> >
> > 1. Make Squid forward the requests to the correct web server according
> > to your defined URL namespace. How this is done depends a little on
> > your definition of the URL namespace, but basically any rules are
> > possible.
> >
> > 2. Make your web servers present the information with correct links to
> > the information according to your defined URL namespace.
> >
> >
> > Two examples of URL namespace definitions:
> >
> > a)
> >
> > http://www.example.com/ -> web server instance 1
> > http://www.example.com/pdf/ -> web server instance 2
> >
> > b)
> >
> > http://www.example.com/ -> web server instance 1
> > http://www.example.com:8000/ -> web server instance 2
> >
> > Regards
> > Henrik
> >
> >
> > On Tuesday 22 April 2003 10.22, Digmayer, Markus wrote:
> > > Hi Henrik,
> > > the webserver communicates with the squid-proxy via Ip-Address and
> > > Port Number. The Proxy receives requests on ip-adress xxx.199.17.
> > > The webserver has xxx.113.125.
> > > http_accel_host xxx.113.125
> > > httpd_accel_port 81 ( between proxy and webserver-instance 1 ).
> > >
> > > Now we have a second instance on IP xxx.113.125 which uses the port
> > > 8042. The first instance presents a directory tree ans pdf-files (
> > > up to this point everything works fine). As long i switch trough
> > > the tree i can only see the IP of the proxy ( xxx.199.17), but when
> > > i touch the pdf-files i can see the IP of the webserver. And when i
> > > click on on of the files nothing happends until i get a request
> > > timeout.
> > >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Henrik Nordstrom [mailto:hno@squid-cache.org]
> > > Gesendet: Dienstag, 22. April 2003 09:54
> > > An: Digmayer, Markus; squid-users@squid-cache.org
> > > Betreff: Re: [squid-users] Accelerator Mode with two different
> > > ports
> > >
> > > On Tuesday 22 April 2003 08.38, Digmayer, Markus wrote:
> > > > Hello Admins,
> > > >
> > > > i have here a Webserver behind a firewall with two webserver
> > > > instances on it and one Proxy in front of the firewall. We use
> > > > the ports 81 and 3149 on the Webserver and one IP-Address. The
> > > > first Webserver on the machine is an apache intance on port 81
> > > > for accepting requests and send back a directory tree an the
> > > > server. The second one is a non apache server which sends
> > > > pdf-docs to the users by request over port 3149. We need to use
> > > > the squid accelerator mode but it is only defined with one
> > > > webserver one Webserver IP-Address and one Webserver Port
> > > > Address. Any information would be appreciated.
> > >
> > > This is fully possible to solve, but there is many ways depending
> > > on what you actaully want.
> > >
> > > Main question: How do you want Squid to accept these requests?
> > > (addresses, ports, hostnames, ...)
> > >
> > > Regards
> > > Henrik

-- 
Henrik Nordstrom <hno@squid-cache.org>
MARA Systems AB, Sweden