#195 Apache 2.1.5 Listen ip:port protocol

[Luís Pedro Algarvio]

Apache supports Listen directive with the optional protocol as of v2.1.5.

If you have manually added it, when updating webmin configs, it adds the listen directive again (duplicate) and the server does not start.

http://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#listen