How to restart the network card in centos

centos6 network card restart method:

service network restart

centos7 network card restart method:

systemctl restart network

(recommended learning: linux video tutorial)

Extended knowledge:

DNS configuration file:

cat /etc/resolv.conf

Set host and IP binding information:

cat /etc/hosts

Set host name:

cat /etc/hostname

Recommended related tutorials: CentOS usage tutorial

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