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CentOS开机网络默认的关闭的,查看网卡:
$ ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.52.128 netmask 255.255.255.0 broadcast 192.168.52.255
inet6 fe80::25c5:e1ad:cf86:88fc prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:a5:d3:82 txqueuelen 1000 (Ethernet)
RX packets 342 bytes 29392 (28.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 210 bytes 30952 (30.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
找到对应的配置文件:
$ sudo more /etc/sysconfig/network-scripts/ifcfg-ens33
[sudo] Toa 的密码:
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=ens33
UUID=a80268f2-6e1b-41f2-8e45-f197b703f2ce
DEVICE=ens33
ONBOOT=no
ZONE=public
可以看到他的ONBOOT是no,将其改成yes(需要管理员权限)
$ sudo vim /etc/sysconfig/network-scripts/ifcfg-ens33
[Toa@toa ~]$ sudo more /etc/sysconfig/network-scripts/ifcfg-ens33
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=ens33
UUID=a80268f2-6e1b-41f2-8e45-f197b703f2ce
DEVICE=ens33
ONBOOT=yes
ZONE=public
下次开机就会直接打开下图位置处的联网了