1. ubuntu下修改静态IP

    打开/etc/network/interfaces文件，修改为以下内容

    auto eth0

    iface eth0 inet static

    address 172.30.1.xxx

    network 255.255.0.0

    gateway 172.30.1.1


    添加DNS地址，打开/etc/resolvconf/resolv.conf.d/base文件，添加DNS如下

    nameserver 180.76.76.76

    nameserver 8.8.8.8

    更新DNS，使其生效

    sudo resolvconf -u


  2. centos下修改静态IP

    打开/etc/sysconfig/network-scripts/ifcfg-eth0文件，修改为以下内容

    auto eth0

    iface eth0 inet static

    address 172.30.1.xxx

    network 255.255.0.0

    gateway 172.30.1.1


    添加DNS地址，打开/etc/resolv.conf文件，添加DNS如下


    nameserver 180.76.76.76

    nameserver 8.8.8.8