Bind Address Problem

[Peter Robinson <pe...@opensystems.net.au>]

Hi All,

I have an apache 1.3.20 server that I'm having some problems with it binding
to a particular address.

OK so here's a rough outline of the system.

Rehat 6.2 (SMP machine) running apache 1.3.20 with mod_ssl 1.8.4
We have one network card with three IP addresses bound to eth0 eth0:0 and
eth0:1. We only want apache to bind to the IP address running on the eth0
interface so in the config file I specify this with the config line

BindAddress 1.2.3.4

But it doesn't just bind to that IP address it binds to all the IP
addresses -> the three interfaces and lookback and everything else. ie if I
do a netstat -ap command it returns

tcp        0      0 *:www                   *:*                     LISTEN
31451/httpd
tcp        0      0 *:https                 *:*                     LISTEN
31451/httpd

instead of

tcp        0      0 www:www                   *:*                     LISTEN
31451/httpd
tcp        0      0 www:https                 *:*                     LISTEN
31451/httpd

if it was just binding to the address we specify.

The reason I need to do this is I need to be able to bind a different
process to port 80 and 443 on the other IP address range that its running.

We are running a number of Virtual hosts with the NameVirtualHost and
appropriate sections.

Does any one have any ideas as this is driving me nuts.

Regards
Peter

--------------------------------------------------------------
Peter Robinson                               Senior Consultant
Open Systems Support                 peterr@opensystems.net.au
97 Broadway, Nedlands WA 6009
Ph (08) 92848777                             Fax (08) 93869833


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Re: Bind Address Problem

[Owen Boyle <ob...@bourse.ch>]

Peter Robinson wrote:
> 
> Hi All,
> 
> I have an apache 1.3.20 server that I'm having some problems with it binding
> to a particular address.
> 
> OK so here's a rough outline of the system.
> 
> Rehat 6.2 (SMP machine) running apache 1.3.20 with mod_ssl 1.8.4
> We have one network card with three IP addresses bound to eth0 eth0:0 and
> eth0:1. We only want apache to bind to the IP address running on the eth0
> interface so in the config file I specify this with the config line
> 
> BindAddress 1.2.3.4
> 
> But it doesn't just bind to that IP address it binds to all the IP
> addresses -> the three interfaces and lookback and everything else. ie if I
> do a netstat -ap command it returns

If you have multiple IP addresses and VHs, I usually defeat all defaults
and specify bindings explicitly using the Listen directive (I never use
Bind or BindAddress). You can then do things like:

	Listen 1.2.3.4:80
	<VirtualHost 1.2.3.4:80>
	..
	</VirtualHost>

	Listen 1.2.3.4:8000
	<VirtualHost 1.2.3.4:8000>
	..
	</VirtualHost>

and be sure that only specified IP/ports will be listened to.

Rgds,

Owen Boyle.

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