1. hosts file
[root@my-linux]# vi /etc/hosts
127.0.0.1 my-linux localhost.localdomain localhost
2. network file
[root@my-linux]# vi /etc/sysconfig/network
ETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=NewName
3.system kenel hostname file
[root@my-linux]# NewName > /proc/sys/kernel/hostname
Host Name 호스트네임 변경방법