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Debian系统中将动态ip改为静态ip

debian linux information-technology

安装debian时，在安装过程中会默认启用dhcp获取网络地址，但为了管理方便，我希望使用静态ip，这样就能保持ip固定。在debian系统中配置静态ip地址，涉及到2个文件要修改，具体操作如下。

1、配置静态ip：

1vi /etc/network/interfaces

可以看到默认是dhcp配置：

 1# This file describes the network interfaces available on your system
 2# and how to activate them. For more information, see interfaces(5).
 3
 4source /etc/network/interfaces.d/*
 5
 6# The loopback network interface
 7auto lo
 8iface lo inet loopback
 9
10# The primary network interface
11allow-hotplug eth0
12iface eth0 inet dhcp

看到上面的最后一行没？这里需要将dhcp改为static，并配置指定的ip地址，具体如下：

 1# This file describes the network interfaces available on your system
 2# and how to activate them. For more information, see interfaces(5).
 3
 4source /etc/network/interfaces.d/*
 5
 6# The loopback network interface
 7auto lo
 8iface lo inet loopback
 9
10# The primary network interface
11allow-hotplug eth0
12iface eth0 inet static
13    address 10.248.201.224/23
14    gateway 10.248.201.1
15    # dns-* options are implemented by the resolvconf package, if installed
16    dns-nameservers 10.248.201.8

2、修改DNS,编辑/etc/resolv.conf中的nameserver

1vi /etc/resolv.conf

1nameserver 10.248.201.8
2nameserver 114.114.114.114

修改完成后，重启网络使配置生效：

1systemctl restart networking

或者重启系统也可以。