DokuWiki » Infrastructure » Operating System » CentOS 7

h1. Configure sudo (sudoers-list)

h2. Requirements

To install ssh you will need the following:

* a installed and supported operating system (e.g. CentOS 7.x)

* root-access

h2. Preliminary Note

@sudo@ allows any user to run commands or a shell as root. Use this with care. This is better than allow everyone access the root-shell directly as there is no easy way to trace who was root when.

This information was taken from

* http://wiki.centos.org/TipsAndTricks/BecomingRoot

* http://centoshelp.org/security/sudo-an-advanced-howto

h2. Install 

@sudo@ is installed by default.

h2. Config

To configure the sudoers-list CentOS supplies the tool @visudo@. Don't use any other editor to manipulate the sudoers-list.

to edit the basic sudo.conf by

<pre><code class="bash">

visudo

</code></pre>

if you want to add user-specific rules you might

<pre><code class="bash">

visudo -f /etc/sudoers.d/user

</code></pre>

check the config by

<pre><code class="bash">

visudo -c

</code></pre>

h2. Test

<pre><code class="bash">

sudo -i

</code></pre>

h2. Troubleshooting 

If the command is not allowed to be executed you may use following commands to check the configuration:

as root

<pre><code class="bash">

visudo -c

</code></pre>