Linux Network troubleshooting

network troubleshooting is very important for operators, so know the detailed process of network troubleshooting and every step of the principle is very important, when the network problems, we can quickly identify the network problems, so as to quickly solve the network problem.

For example, the network can not connect, the reasons are generally divided into hardware problems and software problems, the following is the summary of the reasons and troubleshooting process:

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Common network commands:

Test network connectivity:

Ping 192.168.1.1ping www.baidu.com

To test DNS resolution:

Host Www.baidu.comdig www.baidu.com

Show route table:

IP route

Trace the network path to the destination address:

Traceroute www.baidu.com

Network quality testing using MTR (combined with traceroute and ping):

MTR www.baidu.com

This article is from the "Concise Linux" blog, so be sure to keep this source http://easylinux.blog.51cto.com/9732761/1939284

Linux Network troubleshooting