Linux dig Command

In this tutorial we learn how to use dig commmand in Linux. dig command is a flexible tool for interrogating DNS name servers. It performs DNS lookups and displays the answers that are returned from the name server(s) that were queried. Most DNS administrators use dig to troubleshoot DNS problems because of its flexibility, ease of use and clarity of output. Other lookup tools tend to have less functionality than dig.
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What is Linux dig Command?

In this tutorial we learn how to use dig commmand in Linux. dig command is a flexible tool for interrogating DNS name servers. It performs DNS lookups and displays the answers that are returned from the name server(s) that were queried. Most DNS administrators use dig to troubleshoot DNS problems because of its flexibility, ease of use and clarity of output. Other lookup tools tend to have less functionality than dig.

dig Syntax

       dig [OPTION]... [FILE]...

dig Examples

dig Command Manual / Help

We can use man and info command to see the manual page of dig command.

cat command also have --help option to show list of options.

To open man page for dig command we can use command below. To exit man or info page you can press q.

man cat

To open info page for dig command we can use command below.

info cat

To open help page from dig command we can run command below.

cat --help

Linux dig Command Source Code

You can find dig command source code from the folowing repositories:

You can read tutorials of related Linux commands below:

Summary

In this tutorial we learn how to use dig in Linux with practical examples. Visit our Linux Commands guide to learn more about using command line interface in Linux.