Write FAQ on how to set <hostname> correctly
As we introduced checks for and may going to be more strict with this over time documentation needs to be updated.
- Check if documentation tells about setting this to an IP address anywhere. If so correct this.
- Write a small FAQ on setting correctly. This should be mostly for those who aren't familiar with the concept of hostnames.
Some ideas for the FAQ:
- Tell what a hostname, a FQDN is and how it is related and more importantly not related to IP addresses.
- Include a hint to use same domain as webpage.
- Include hint for falling back to whatever server hoster use a default hostname.