CentOS 7 设置IP地址inet 127.0.0.inet 192.168.29.128/24 brd 192.1

自动获取IP地址

[root@localhost ~]# dhclient

查看IP地址

[root@localhost ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:fe:ef:0f brd ff:ff:ff:ff:ff:ff
    inet 192.168.29.128/24 brd 192.168.29.255 scope global noprefixroute ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::b731:8219:5f1f:a11/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

vi编辑配置文件

[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens33

编辑配置文件

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static     //静态填static、动态填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=88fa6506-0ee8-48c0-adf1-1b8b8392cc62
DEVICE=ens33
ONBOOT=yes     //系统启动时是否激活网卡
IPADDR=192.168.29.128     //IP地址
NETMASK=255.255.255.0     //子网掩码
GATEWAY=192.168.29.2     //网关
DNS1=119.29.29.29     //DNS

刷新网络配置

[root@localhost ~]# systemctl restart network.service

查看IP地址

[root@localhost ~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.29.128  netmask 255.255.255.0  broadcast 192.168.29.255
        inet6 fe80::b731:8219:5f1f:a11  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:fe:ef:0f  txqueuelen 1000  (Ethernet)
        RX packets 1274  bytes 129949 (126.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1167  bytes 154006 (150.3 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 1000  (Local Loopback)
        RX packets 32  bytes 2592 (2.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 32  bytes 2592 (2.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0