Apache 1 virtual host definition listening on 2 ips - how?

Question

We have a couple of complex virtual host definitions in our httpd.conf file.

What I mean by that is:

<VirtualHost .....>
....
</VirtualHost>

What I mean by complex is that they are full of rewrite rules and such.

We would like to bind this virtual host on 2 ip addresses. Currently it is bound only to one.

Is it possible to bind a virtual host to 2 ip addresses using a single VirtualHost?

It would make things a lot easier to have a single one if we need to make changes in the future.

Answer 1

An easy way to handle this is to extract the common bits into a separate file (e.g., /path/to/foo) and then Include it in your vhost defs:

<Vitrualhost ...>
  ServerName X
  DocumentRoot Y
  Include /path/to/foo
</Virtualhost>

<Vitrualhost ...>
  ServerName Z
  DocumentRoot A
  Include /path/to/foo
</Virtualhost>

Note: Do not put /path/to/foo somewhere that will be pulled in by a wildcard Include elsewhere.

Answer 2

You can just place multiple IP/Port specifiers in the definition, as described in the documentation.

Example:

<VirtualHost 1.2.3.4:80 2.3.4.5:80 1.2.3.4:8080>
DocumentRoot /path/to/wherever
ServerName example.com
# Stuff goes here
</VirtualHost>

Just make sure you've got Apache configured with enough NameVirtualHost definitions.

Answer 3

Sure:

Listen 80

<VirtualHost _default_:80>
    ...
</VirtualHost>

Alternatively, consider using name-based virtual hosts instead.

Answer 4

You could use...

Listen 80

<VirtualHost *:80>
...
</VirtualHost>

..to bind to any IP on the server

Answer 5

I would probably go with the named virtual hosts, AND make the modification to the DNS so that both IPs have A records with the same hostname.