Change Hostname

[CENTOS7]-[DEBIAN9]:

SHOW:

• $ hostname
• $ hostname -s #displayed the computer short name
• $ hostname -f #displays the computer FQDN in the network
• $ cat /etc/hostname
• Add new hostname in /etc/hosts

CHANGE:

• hostnamectl set-hostname NAME
• hostnamectl #Show change config

URL

Get hostname from ip

sudo nmblookup -A  IP | grep '<00' | grep -v GROUP | awk '{print $1}'