Firehol, restrict server to accept only one ip
From Andreida
If you want to setup certain services it is a bit safer if you don't allow anyone than yourself access to these services during the setup. Imagine someone takes over your Apache setup process.
If you have a line like the following
server http accept
then you can restrict this server to one ip with the following:
server4 http accept src 185.4.153.23
The "4" after server indicates that we only accept ipv4.
