//Linux修改主机名
1.修改network
cd /etc/sysconfig
vi network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=server1.group1
2.修改hosts
cd /etc/
vi hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 server1.group1 server1
::1 localhost6.localdomain6 localhost6
3.修改IP
cd /etc/sysconfig/network-scripts
vi ifcfg-eth0
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
HWADDR=00:0c:29:fa:df:7a
vi ifcfg-eth1
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth1
BOOTPROTO=dhcp
ONBOOT=yes
HWADDR=00:0c:29:fa:df:84
IPADDR=192.168.10.121
NETMASK=255.255.255.0
编辑完成后，重启服务即可。
service network restart