01-05 linux 静态ip配置

• 最近在学习linux环境下服务器搭建，发现ip一直变化，影响虚拟机配置，顺便写个笔记

1、查看当前ip：

[root@localhost ~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.58.172  netmask 255.255.255.0  broadcast 192.168.58.255
        inet6 fe80::20c:29ff:fe38:27a6  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:38:27:a6  txqueuelen 1000  (Ethernet)
        RX packets 127  bytes 18647 (18.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 94  bytes 17847 (17.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

• 说明：ends33为当前用户的ip

2、进入ip配置文件页面

[root@bogon ~]# cd /etc/sysconfig/network-scripts/
[root@bogon network-scripts]# ls
ifcfg-ens33  ifdown-ppp       ifup-ib      ifup-Team
ifcfg-lo     ifdown-routes    ifup-ippp    ifup-TeamPort
ifdown       ifdown-sit       ifup-ipv6    ifup-tunnel
ifdown-bnep  ifdown-Team      ifup-isdn    ifup-wireless
ifdown-eth   ifdown-TeamPort  ifup-plip    init.ipv6-global
ifdown-ib    ifdown-tunnel    ifup-plusb   network-functions
ifdown-ippp  ifup             ifup-post    network-functions-ipv6
ifdown-ipv6  ifup-aliases     ifup-ppp
ifdown-isdn  ifup-bnep        ifup-routes
ifdown-post  ifup-eth         ifup-sit

3、设置固定ip

[root@bogon network-scripts]# vi ifcfg-ens33 
TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="463a331c-293b-40b0-aeda-bacc1f88bd78"
DEVICE="ens33"
ONBOOT="yes"

• 在文件底部添加配置

#static assignment
NM_CONTROLLED=no #表示该接口将通过该配置文件进行设置，而不是通过网络管理器进行管理
ONBOOT=yes #开机启动
BOOTPROTO=static #静态IP
IPADDR=192.168.58.121 #本机地址
NETMASK=255.255.255.0 #子网掩码
GATEWAY=192.168.1.1 #默认网关

• 修改后效果

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="463a331c-293b-40b0-aeda-bacc1f88bd78"
DEVICE="ens33"
ONBOOT="yes"
#static assignment
NM_CONTROLLED=no #表示该接口将通过该配置文件进行设置，而不是通过网络管理器进行管理
ONBOOT=yes #开机启动
BOOTPROTO=static #静态IP
IPADDR=192.168.58.121 #本机地址
NETMASK=255.255.255.0 #子网掩码
GATEWAY=192.168.1.1 #默认网关
~                         

5、重启网络服务

[root@localhost network-scripts]# service network restart
Restarting network (via systemctl):                        [  OK  ]

6、查看修改后ip

[root@localhost network-scripts]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.58.121  netmask 255.255.255.0  broadcast 192.168.58.255
        inet6 fe80::20c:29ff:fe38:27a6  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:38:27:a6  txqueuelen 1000  (Ethernet)
        RX packets 266  bytes 30695 (29.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 190  bytes 32741 (31.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[root@localhost network-scripts]#