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From Axel-St├ęphane SMORGRAV <Axel-Stephane.SMORG...@europe.adp.com>
Subject RE: [users@httpd] Multiple instances bound to separate IPs?
Date Wed, 26 Oct 2005 08:25:12 GMT
Of course this is possible.

A TCP connection is uniquely identified by the 5-tuple {localIP, localPort, remoteIP, remotePort,
protocol}. The remoteIP and remotePort may be * in case of a passive open, i.e. a socket in
LISTEN status, as is the case of a http server.

AS a matter of fact, you may not even need separate Apache instances. One instance can listen
for connections on multiple addresses and ports, i.e. have multiple Listen directives.

-ascs

-----Original Message-----
From: Sean Brown [mailto:seanmichaelbrown@gmail.com] 
Sent: Tuesday, October 25, 2005 10:25 PM
To: users@httpd.apache.org
Subject: [users@httpd] Multiple instances bound to separate IPs?

Is it possible to run two separate instances of Apache, both on port
80, but each bound to a different IP?  So, for instance one, I'd have
this in the httpd.conf:

Listen 192.168.1.1:80

And in the other, I'd have have:

Listen 192.168.1.2:80

If I started each with a specification of configuration file, would it
work, or would I get an error about a service already bound to port
80?  I'd start them like so

/usr/local/apache2/bin/httpd -f /usr/local/apache2/conf/httpd.conf -k start
/usr/local/apache2_php5/bin/httpd -f
/usr/local/apache2_php5/conf/httpd.conf -k start

Thanks in advance,

Sean

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