Set Hostname2015/10/25

	This is the example for setting Hostname of your system.
[1]	Change hostname with a commnad (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
           Boot ID: 4c2bfd4980a84fef8882b5a5939e5624
    Virtualization: kvm
  Operating System: Ubuntu 14.04.3 LTS
            Kernel: Linux 3.13.0-66-generic
      Architecture: x86_64

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