How to solve the problem that centos cannot ping the domain name

How to solve the problem that centos cannot ping the domain name?

Step one:

Check vi /etc/sysconfig/network-scripts/ifcfg-eth0

View the network card configuration Is the dns consistent with nameserver in vi /etc/resolv.conf;

If it is inconsistent, please change it to be consistent and restart the network card. Note that the first DNS is Mainly, it must be correct!

systemctl restart network

If the first step still does not work after processing, please perform the second step:

The second step:

vi /etc/nsswitch.conf
hosts: files dnsnetworks: files

Change to:

hosts: files dns wins
networks: files

If it is different, just add wins after the original line of hosts:.

Related references: centOS tutorial

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