Below are snippets for the settings you can use to enable IPv6 on Apache2. These settings can be changed/added from /etc/apache2/ports.conf

You can use multiple Listen directives to listen on multiple IP’s. This goes for both IPv4 and IPv6.

  • Listen *

    • (Both IPv4 and IPv6 on every IP)

  • Listen 192.168.0.100

    • (IPv4 Only)

  • Listen Listen [2001:db8::a00:20ff:fea7:ccea]:80

    • (IPv6 Only)

    You can also specify the port apache uses with the Listen directive. To listen op port 443 on both IPv4 and IPv6 use the following:

  • Listen 443

    • (Both IPv4 and IPv6 on every IP on port 443)
      

    These vhosts go in /etc/apache2/sites-enabled/nameofyourvhost.conf
    Set a vhost on all IP’s (both IPv4 and IPv6).

    <virtualhost *:80>
       ServerName fix6.net
       ServerAlias *.fix6.net
       DocumentRoot /www/fix6.net/public_html
       ErrorLog /www/fix6.net/logs/error_log
       Customlog /www/fix6.net/logs/combined_log combined
    </virtualhost>

    Set vhost to a specific IPv6 only

    <virtualhost [2001:db8::a00:20ff:fea7:ccea]:80>
       ServerName fix6.net
       ServerAlias *.fix6.net
       DocumentRoot /www/fix6.net/public_html
       ErrorLog /www/fix6.net/logs/error_log
       Customlog /www/fix6.net/logs/combined_log combined
    </virtualhost>

    Set vhost to a specific IPv4 and IPv6 adres

    <virtualhost 192.168.1.100:80, [2001:db8::a00:20ff:fea7:ccea]:80>
       ServerName fix6.net
       ServerAlias *.fix6.net
       DocumentRoot /www/fix6.net/public_html
       ErrorLog /www/fix6.net/logs/error_log
       Customlog /www/fix6.net/logs/combined_log combined
    </virtualhost>

    Source and more information: http://httpd.apache.org/docs/2.2/mod/mpm_common.html and http://httpd.apache.org/docs/2.2/vhosts/name-based.html