Linux external network cannot ping

The solution is as follows:

Method 1:

Modify resolv.conf

vi /etc/resolv.conf

Add the following content:

nameserver 114.114.114.114 (电信的DNS) nameserver 8.8.8.8（googel的DNS）

You can ping the external network.

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Method 2:

ip a or ifconfig check the network card used, and then Enter /etc/sysconfig/network-scripts, find the corresponding network card and modify it.

vi /etc/sysconfig/network-scripts/ifcfg-ethx

Restart the network card

service network restart

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