Sudoers File Explained

You are probably wondering how the sudoers file works. Here’s a simple explanation.

Command

username host=(user:group) tag:commands

Explanation

- username – the specified user allowed to run commands.
- host – the specified host the command is allowed to run.
- user – specifies which users can use the command.
- group – specifies which groups can run the command.
- tag – the option allowed. NOPASSWD
- command – the command allowed to run.

Examples

root    ALL=(ALL) ALL
username ALL=(ALL) ALL
john test=(ALL) NOPASSWD: /bin/useradd
jane ALL=(sales) NOPASSWD: /bin/sh
%sudo ALL=(ALL) ALL
%adgroup ALL=(ALL) ALL

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