Informations
Many web or mail server control panel installation need a “fully qualified domain name” (FQDN) which is not a main domain to work. You can use a Subdomain as Example:
Your Domain is: domain.id
Your FQDN is: srv01.server.domain.id (or something else!)
It’s important that you take only one and every Time you have been asked after it you tell this one!
How to Set a new FQDN
Now you have to set you new Hostname at /etc/hostname you can do that with this echo command. After that we will copy the hostname file for the Mailserver as Mailname:
echo your.full.qualified-domain-name.id > /etc/hostname cp /etc/hostname /etc/mailname
Now edit the /etc/hosts file and correct the Information’s:
# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost <ip> <myfullqualified.id> <myfullqualified> # The following lines are desirable for IPv6 capable hosts #(added automatically by netbase upgrade) ::1 ip6-localhost ip6-loopback feo0::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts
Note: You have to Replace <ip> with your IP, <myfullqualified.id> with your FQDN and <myfullqualified> with your Hostname without Domain-TLD(.id)!
Now restart the Hostname Service:
/etc/init.d/hostname.sh stop /etc/init.d/hostname.sh start
