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9 Tips to diagnose remote GNU/Linux server network connectivity issues

Filed under
HowTos

Many new admin or Linux users get frustrated when their remote Linux box is not accessible dues to network connectivity. In this article I will try to provide tools and information about how to diagnose network configurations. You can try these tips/tools to diagnose an issue of Linux network connectivity to remote or local servers.

Steps to diagnose the problem:

#1: Use ping command

Always ping the IP address of server and then try hostname. For example:

$ ping 75.126.43.232
$ ping cyberciti.biz

#2: Use traceroute command

If you cannot ping your server at all, use traceroute to trace network problem.

#3: Look for default route / gateway IP

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