Ubuntu Server Configuration Network

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Ubuntu 14.04 x86_64

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Set static IP:
Vi/etc/network/interfaces.

And then edit

Auto Lo
Iface Lo inet Loopback

# The Primary network interface
Auto Em1 # #第一块网卡的名称, can be found by ifconfig command
Iface em1 inet Static # # is set to still IP
Address 192.xx.yy.zz #你的IP地址

netmask 255.255.255.0 # #子网掩码
Network 192.xx.yy.0 # # #
Broadcast 192.XX.YY.255 # Broadcast
Gateway 192.xx.yy.254 # # Default Gateways

# Dns-* Options is implemented by the RESOLVCONF package, if installed
Dns-nameservers 8.8.8.8 # #域名解析服务器地址

After editing in the format above, you can save the exit.

For example:

sudo/etc/init.d/networking restart

After this sentence is executed, it is best to check whether the execution succeeded: Echo $?

If the output value is not 0, the execution fails. Try using the following method:

To shut down the network:

Ifdown < nic name >

Open Network:

Ifup < nic name >

Not really. Restart the system:

sudo reboot–h now

Ubuntu Server Configuration Network