How do I create Virtual Hosts for Different Ports on Apache?

Question

I want apache to do this >

mydomain.com:80  --- opens var/www1
mydomain.com:81  --- opens var/ww2
mydomain.com:82  --- opens var/www3

Problem is I dont know if those ports are open on Linux (how do i check?)

And if they're not how do I open them in the firewall and get apache to listen?

I tried doing this

> iptables -A RH-Firewall-1-INPUT -m  NEW -m tcp -p tcp –dport 81 -j ACCEPT
iptables v1.3.5: Couldn't load match `NEW':/lib64/iptables/libipt_NEW.so: cannot open shared object file: No such file or directory

and I checked the ports... looks like httpd is listening... but I dunno why I can't hit my URL

> netstat -tulpn | less
tcp        0      0 :::80       :::*      LISTEN      6840/httpd
tcp        0      0 :::81       :::*      LISTEN      6840/httpd
tcp        0      0 :::82       :::*      LISTEN      6840/httpd

Answer 1

To expand on Jeff's answer you'll need something like this in your apache configuration

Listen 80
Listen 81
Listen 82

# Listen for virtual host requests on all IP addresses
NameVirtualHost *:80

<VirtualHost *:80>
DocumentRoot /var/www1
ServerName www.example1.com
</VirtualHost>

NameVirtualHost *:81
<VirtualHost *:81>
DocumentRoot /var/www2
ServerName www.example2.org
</VirtualHost>


NameVirtualHost *:82
<VirtualHost *:82>
DocumentRoot /var/www3
ServerName www.example3.org
</VirtualHost>

Answer 2

Step 1: Configure Apache to Listen on each of the ports you want to service.

Step 2: Set up a Virtual Host configuration for each port you want to service.