CentOS7网卡配置

查看IP信息安装完CentOS之后，通过 ip addr 命令查看ip信息[root@localhost yum.repos.d]# ip addr1: 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 forever2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 08:00:27:39:fe:2b brd ff:ff:ff:ff:ff:ff查看网卡配置进入网卡配置文件目录cd /etc/sysconfig/network-scripts/查看目录文件，如下ifcfg-enp0s3 ifdown ifdown-ippp …可以看出网卡配置文件为 ifcfg-enp0s3，有的电脑里可能为 eth0 或者其他配置动态IP编辑网卡配置文件vi /etc/sysconfig/network-scripts/ifcfg-enp0s3文件内容如下YPE=EthernetPROXY_METHOD=noneBROWSER_ONLY=noBOOTPROTO=dhcpDEFROUTE=yesIPV4_FAILURE_FATAL=noIPV6INIT=yesIPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_FAILURE_FATAL=noIPV6_ADDR_GEN_MODE=stable-privacyNAME=enp0s3UUID=e7666215-13db-4cc2-bbea-6fd152c7b4a8DEVICE=enp0s3ONBOOT=no将 ONBOOT=no 修改为 ONBOOT=yes…ONBOOT=yes重启网络服务service network restart或者/etc/init.d/network restart网络服务重启成功Restarting network (via systemctl): [ OK ]查看ip信息此时可以看到ip为 192.168.2.107…inet 192.168.2.107/24 brd 192.168.2.255 scope global noprefixroute dynamic enp0s3…配置静态ip以上配置为动态ip，当系统重启后，ip可能会改变，所以需将ip配置为静态。修改配置文件将 BOOTPROTO=dhcp 修改为 BOOTPROTO=static…BOOTPROTO=static…添加静态ip信息IPADDR=192.168.2.110 // 静态ipGETWAY=192.168.2.1 // 网关地址NETMASK=255.255.255.0 // 子网掩码DNS1=192.168.2.1 // DNS地址重启网络服务service network restart