静态ip 变成自动获取(家用宽带ip是静态还是动态)
时间：2023-10-27 21:21:11 浏览量：17
怎么将linux的动态IP设置成静态IP?
例如我的eth0网卡信息如下
eth0 Link encap:Ethernet HWaddr 00:0C:29:AA:B2:CA
inet addr:192.168.79.135 Bcast:192.168.79.255 Mask:255.255.254.0
inet6 addr: fe80::20c:29ff:feaa:b2ca/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:208685 errors:0 dropped:0 overruns:0 frame:0
TX packets:53443 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:42393010 (40.4 MiB) TX bytes:18010745 (17.1 MiB)
现在我想把我的本地IP固定成192.168.79.133(用虚拟机的童鞋都知道, IP老是变化好麻烦)
1.查看网关地址, 我的是192.168.79.2
> # route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.78.0 0.0.0.0 255.255.254.0 U 1 0 0 eth0
0.0.0.0 192.168.79.2 0.0.0.0 UG 0 0 0 eth0
此时的网关: 192.168.199.2
掩码: 255.255.255.0
2.查看DNS，我的是192.168.79.2
> # cat /etc/resolv.conf
# Generated by NetworkManager
search 7
nameserver 192.168.79.2
3.配置网卡信息, 我的是 vim /etc/sysconfig/network-scripts/ifcfg-eth0
配置信息如下
DEVICE="eth0"
IPV6INIT="yes"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE="Ethernet"BOOTPROTO=static
DNS1=192.168.79.2
IPADDR=192.168.79.133
NETMASK=255.255.254.0
GATEWAY=192.168.79.2
通用需要修改的参数
BOOTPROTO="static"
DNS1=192.168.79.2
IPADDR=192.168.79.133
NETMASK=255.255.254.0
GATEWAY=192.168.79.2
重启网络
systemctl restart network
来源：https://www.cnblogs.com/xiaozong/p/7070015.html
Linux系统\Centos没有网卡eth0配置文件怎么办?
一般来说如果没有网卡eth0配置文件, 你到网卡配置目/etc/sysconfig/network-scripts/下面都会有一个 ifcfg-lo 回环接口配置文件(可以复制其他的配置文件), 拷贝一份
> # cd /etc/sysconfig/network-scripts
> # pwd
/etc/sysconfig/network-scripts
> # cp cp ifcfg-ziroom502 ifcfg-eth0
拷贝了一个lo配置文件之后, 把文件IP地址和参数改一下改成eth0保存即可
[root@localhost ~]# ifconfig
enp2s0: flags=4099
ether ec:aa:a0:26:df:11 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 68 bytes 5912 (5.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 68 bytes 5912 (5.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:5e:7f:0a txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp1s0: flags=4163
inet 192.168.8.236 netmask 255.255.255.0 broadcast 192.168.8.255
inet6 fe80::21f6:8823:b668:701b prefixlen 64 scopeid 0x20
ether 2c:6e:85:60:cb:c4 txqueuelen 1000 (Ethernet)
RX packets 121494 bytes 173704591 (165.6 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 46497 bytes 4666787 (4.4 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Last login: Fri May 1 09:53:12 2020 from desktop-gmsei0s.lan
[root@localhost ~]# ifconfig
enp2s0: flags=4099
ether ec:aa:a0:26:df:11 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 72 bytes 6256 (6.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 72 bytes 6256 (6.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:5e:7f:0a txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp1s0: flags=4163
inet 192.168.8.236 netmask 255.255.255.0 broadcast 192.168.8.255
inet6 fe80::21f6:8823:b668:701b prefixlen 64 scopeid 0x20
ether 2c:6e:85:60:cb:c4 txqueuelen 1000 (Ethernet)
RX packets 128179 bytes 182388737 (173.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 50886 bytes 5188221 (4.9 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0