ubuntu 修改主机名

修改主机名 

vim  /etc/hostname 

修改主机映射  ，重启生效

root@temple-102:~# cat /etc/hosts
127.0.0.1	localhost
127.0.1.1	mysy-SYS-7048GR-TR
127.0.1.1       temple-102

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters