Ubuntu 15.04
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Set Hostname
2015/04/24
 
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
        Machine ID: 88f58c3910fee96e8ba80808b3230b4e
           Boot ID: 51b14fd0cfac4cc8bd5ab4980fb22395
    Virtualization: kvm
  Operating System: Ubuntu 15.04
            Kernel: Linux 3.19.0-15-generic
      Architecture: x86-64
 
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