ubuntu-配置网卡配置静态ip

ubuntu配置网卡配置静态ip

$ ip a
ens39: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 00:0c:29:5a:34:bd brd ff:ff:ff:ff:ff:ff
# 查看网卡发现没有分配ip地址

# 创建网卡配置文件
$ vim /etc/network/interfaces
auto ens39	# 网卡名
iface  ens39  inet  static	# 注意网卡名
address  192.168.235.8	# 配置ip地址
netmask  255.255.255.0	# 掩码
gateway  192.168.235.2	# 网关

# 如果需要配置多块网卡可直接在配置文件里加配置如下（如果只需要配置一块网卡则忽略）
auto ens33	# 网卡名
iface  ens33  inet  static	# 注意网卡名
address  192.168.100.11	# 配置ip地址
netmask  255.255.255.0	# 掩码
gateway  192.168.100.2	# 网关

# 重启网卡
$ apt install net-tools
$ ifconfig ens39 down;ifconfig ens39 up

# 查看网卡已经获得ip地址
$ ip a
1: 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 forever
    link/ether 00:0c:29:5a:34:c7 brd ff:ff:ff:ff:ff:ff
4: ens39: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:5a:34:d1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.235.8/24 brd 192.168.235.255 scope global ens39
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe5a:34d1/64 scope link 
       valid_lft forever preferred_lft forever

$ ping baidu.com
PING baidu.com (220.181.38.251) 56(84) bytes of data.
64 bytes from 220.181.38.251 (220.181.38.251): icmp_seq=1 ttl=128 time=6.65 ms
^C
--- baidu.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 6.652/6.652/6.652/0.000 ms