Changing port 80 to 8080 in Apache

I'm trying to change the port used by a website from 80 to 8080.

Here is my /etc/apache2/ports.conf:

NameVirtualHost *:80
NameVirtualHost *:8080
Listen 80
Listen 8080

Here is my VirtualHost file:

<VirtualHost *:8080>
  # Admin email, Server Name (domain name), and any aliases
  ServerAdmin webmaster@foo.com
  ServerName  www.foo.com
  ServerAlias foo.com

  # Index file and Document Root (where the public files are located)
  DirectoryIndex index.html index.php
  DocumentRoot /var/www/foo.com/
</VirtualHost>

netstat -lntp output:

tcp6       0      0 :::8080       :::*              LISTEN      7267/apache2    
tcp6       0      0 :::80         :::*              LISTEN      7267/apache2

When I restart apache using the port 8080 in my VirtualHost, the website goes down (could not connect to website error in chrome), if I change back to port 80, all works correctly again.

What am I doing wrong here?

UPDATE:

The host it's a linode machine with Debian 7.

Also I do not have SElinux enabled.

The /etc/hosts config:

127.0.0.1   <foo.com> <serverhostname>
127.0.1.1   debian

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

I think the port 8080 it's correctly open, here is the output of iptables -L -n -v:

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
  467 36136 ACCEPT     all  --  lo     *       0.0.0.0/0            0.0.0.0/0           
    0     0 REJECT     all  --  *      *       0.0.0.0/0            127.0.0.0/8          reject-with icmp-port-unreachable
 103K   11M ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED
  600 35296 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:80
   30  1532 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:443
   42  2308 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:8080
 6860  411K ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            state NEW tcp dpt:22
   44  2848 ACCEPT     icmp --  *      *       0.0.0.0/0            0.0.0.0/0           
  860 57824 LOG        all  --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 5/min burst 5 LOG flags 0 level 7 prefix "iptables denied: "
  968 67687 DROP       all  --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       all  --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination

curl -v http://localhost:8080 output:

* About to connect() to localhost port 8080 (#0)
*   Trying ::1...
* connected
* Connected to localhost (::1) port 8080 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.26.0
> Host: localhost:8080
> Accept: */*
> 
* additional stuff not fine transfer.c:1037: 0 0
* HTTP 1.1 or later with persistent connection, pipelining supported
< HTTP/1.1 301 Moved Permanently
< Date: Mon, 10 Jun 2013 09:58:08 GMT
< Server: Apache/2.2.22 (Debian)
< X-Powered-By: PHP/5.4.4-14
< X-Pingback: http://www.foo.com/xmlrpc.php
< Location: http://localhost/
< Vary: Accept-Encoding
< Content-Length: 0
< Content-Type: text/html; charset=UTF-8
< 
* Connection #0 to host localhost left intact
* Closing connection #0