Linux修改IP位址

1.檢視本機ip位址，自動獲取192.168.1.12，我們將它改為192.168.1.100的內網ip，將網絡卡改為橋接模式

[root@localhost ~]# ifconfig

enp0s3: flags=4163mtu 1500

inet 192.168.1.12  netmask 255.255.255.0  broadcast 192.168.1.255
inet6 fe80::9fcb:e79f:32bb:57a6  prefixlen 64  scopeid 0x20ether 08:00:27:8f:b7:2c  txqueuelen 1000  (ethernet)
rx packets 3307  bytes 208431 (203.5 kib)
rx errors 0  dropped 0  overruns 0  frame 0
tx packets 392  bytes 31801 (31.0 kib)
tx errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73mtu 65536
inet 127.0.0.1  netmask 255.0.0.0
inet6 ::1  prefixlen 128  scopeid 0x10loop  txqueuelen 1000  (local loopback)
rx packets 68  bytes 5908 (5.7 kib)
rx errors 0  dropped 0  overruns 0  frame 0
tx packets 68  bytes 5908 (5.7 kib)
tx errors 0  dropped 0 overruns 0  carrier 0  collisions 0

en:表示乙太網卡

p0s3:代表pci介面的物理位置為(0, 3), 其中橫座標代表bus，縱座標代表slot

2.進行ip位址的修改

[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-enp0s3

type=ethernet

proxy_method=none
browser_only=no
bootproto=dhcp
defroute=yes
ipv4_failure_fatal=no
ipv6init=yes
ipv6_autoconf=yes
ipv6_defroute=yes
ipv6_failure_fatal=no
ipv6_addr_gen_mode=stable-privacy
name=enp0s3
uuid=f1f5f762-3838-4908-b8d7-e6866c62f508
device=enp0s3
onboot=yes

修改為：

type=ethernet

proxy_method=none
browser_only=no
#bootproto=dhcp
#added
bootproto=static
ipaddr=192.168.1.100
netmask=255.255.255.0
gateway=192.168.1.1
#end added
defroute=yes
ipv4_failure_fatal=no
ipv6init=yes
ipv6_autoconf=yes
ipv6_defroute=yes
ipv6_failure_fatal=no
ipv6_addr_gen_mode=stable-privacy
name=enp0s3
uuid=f1f5f762-3838-4908-b8d7-e6866c62f508
hwaddr=08:00:27:2e:c2:f8
device=enp0s3
onboot=yes

[root@localhost ~]# reboot

[root@localhost ~]# service network restart

[root@localhost ~]# ifconfig

enp0s3: flags=4163mtu 1500

inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
inet6 fe80::9fcb:e79f:32bb:57a6  prefixlen 64  scopeid 0x20ether 08:00:27:8f:b7:2c  txqueuelen 1000  (ethernet)
rx packets 212  bytes 16235 (15.8 kib)
rx errors 0  dropped 0  overruns 0  frame 0
tx packets 73  bytes 14013 (13.6 kib)
tx errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73mtu 65536
inet 127.0.0.1  netmask 255.0.0.0
inet6 ::1  prefixlen 128  scopeid 0x10loop  txqueuelen 1000  (local loopback)
rx packets 196  bytes 17040 (16.6 kib)
rx errors 0  dropped 0  overruns 0  frame 0
tx packets 196  bytes 17040 (16.6 kib)
tx errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@localhost ~]# vim /etc/resolv.conf

; generated by /usr/sbin/dhclient-script
nameserver 192.168.1.1
search localdomain

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