Set Hostname2016/04/21

	This is the example for setting Hostname of your system.
[1]	Change hostname. (but if rebooting, it will be back).

# show current hostname

root@ubuntu:~#

hostname

ubuntu

# change hostname

root@ubuntu:~#

hostname dlp

root@ubuntu:~#

hostname

dlp

# just changed

[2]	Change hostname permanently.

root@ubuntu:~#

hostnamectl set-hostname dlp

# display settings

root@ubuntu:~#

hostnamectl

   Static hostname: dlp
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 4146e8929ffa426ebdac4569cf024113
           Boot ID: fb2d71a7d85b44a39a8444a94e510b08
    Virtualization: kvm
  Operating System: Ubuntu 16.04 LTS
            Kernel: Linux 4.4.0-21-generic
      Architecture: x86-64

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