Setting hosts & hostname :

Cara cek :

# hostname
# hostname -f

(hasiknya harus sama & FQDN)

Cara edit :

# nano /etc/hosts

127.0.0.1       localhost
127.0.1.1       kpliklaten02-ThinkCentre-M70e
192.168.12.12       kpliklaten02-ThinkCentre-M70e <== tambahkan IP + hosname.
# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

             
# nano /etc/hostname

>> tambahkan sesuai hostname anda.