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初次安裝centos7後網路連線設定

初次安裝好CentOS7後網路可能還未開啟。需要自己手動配置。

Type “nmcli d” command in your terminal for quick identification of Ethernet cards installed in your machine.

Step 1 » Network interface config files are located in /etc/sysconfig/network-scripts/ directory. Open ifcfg-enp0s17 file ( For interface enp0s17 ) and you can see the content like below.
[

[email protected] ~]# vi /etc/sysconfig/network-scripts/ifcfg-enp0s17
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=enp0s17
UUID=7f1aff2d-b154-4436-9497-e3a4dedddcef
ONBOOT=no
HWADDR=00:0C:29:A1:B5:D6
PEERDNS=yes
PEERROUTES=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes

» DHCP configuration

Step 2 » For DHCP
Find the below lines in config File.
BOOTPROTO=none
ONBOOT=no
and replace with
BOOTPROTO=dhcp
ONBOOT=yes
Now Restart network service by typing below command.
systemctl restart networkNow your server will get IP Address from DHCP

參考資料