临时配置ip
ifconfig eth0 up //端口启用 ifconfig eth0 down //端口关闭 ifconfig eth0 192.168.1.10 //只修改ip地址 ifconfig eth0 192.168.1.10/24 或者 ifconfig eth0 1.1.1.1 netmask 255.0.0.0
临时修改路由
route //查看路由表 netstat -rn //查看路由表 route del default eth0 //删除eth0上的默认路由 route add default gw 192.168.1.1 //添加默认路由
修改配置文件修改网卡信息
/etc/network/interfaces auto lo iface lo inet loopback allow-hotplug eth0 iface eth0 inet dhcp iface eth0 inet6 auto 修改为： auto lo iface lo inet loopback allow-hotplug eth0 auto eth0 # 增加了该选项，因为使用networking restart时系统启动 auto的网卡，如不加上则启动无反应 iface eth0 inet static # 配置了static 为静态ip | 自动获取 iface eth0 inet dhcp address 192.168.1.4 # 设置ip地址 netmask 255.255.255.0 # 设置掩码 gateway 192.168.1.1 # 设置网关
dns-nameservers 223.5.5.5 # 错误的
iface eth0 inet6 auto # 可写可不写
终端命令行下重启网络：service networking restart或 /etc/init.d/networking restart 。
报错信息
root@bogon:~# /etc/init.d/networking restart [....] Restarting networking (via systemctl): networking.serviceJob for networking.service failed because the control process exited with error code. See "systemctl status networking.service" and "journalctl -xe" for details. failed! root@bogon:~# vim /etc/network/interfaces root@bogon:~# systemctl status networking.service ● networking.service - Raise network interfaces Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor prese Active: failed (Result: exit-code) since Sun 2019-04-28 12:06:52 CST; 58s ago Docs: man:interfaces(5) Process: 6811 ExecStartPre=/bin/sh -c if [ "$CONFIGURE_INTERFACES" != "no" ] & Process: 6814 ExecStart=/sbin/ifup -a --read-environment (code=exited, status= Main PID: 6814 (code=exited, status=1/FAILURE) 4月 28 12:06:52 bogon systemd[1]: Starting Raise network interfaces... 4月 28 12:06:52 bogon ifup[6814]: Not enough information: "dev" argument is requ 4月 28 12:06:52 bogon ifup[6814]: ifup: failed to bring up eth0 4月 28 12:06:52 bogon systemd[1]: networking.service: Main process exited, code= 4月 28 12:06:52 bogon systemd[1]: networking.service: Failed with result 'exit-c 4月 28 12:06:52 bogon systemd[1]: Failed to start Raise network interfaces. lines 1-14/14 (END)
注意代码后面不能有注释，否则报错，需要把注释删除掉
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.2.135 netmask 255.255.255.0 gateway 192.168.2.1
修改dns配置文件
缺点： 重启后会消失
/etc/resolv.conf nameserver 202.106.0.20 nameserver 202.106.46.151 修改为： nameserver 202.106.0.20 nameserver 202.106.46.151 nameserver 8.8.8.8