DokuWiki » Infrastructure » Operating System » CentOS 9

h1. sudo

is an alias for @substitute user do@, it allows user to run programs with root-privileges.

h2. usage

example: run @dnf update@

<pre><code class="shell">

sudo dnf update

</code></pre>

example: show available commands

<pre><code class="shell">

sudo -l

</code></pre>

h2. config wheel group

any user in @wheel@ is allowed to sudo into everything

<pre><code class="shell">

usermod -aG wheel USERNAME

</code></pre>

h2. config /etc/sudoers.d

make a separate file for each user

<pre><code class="shell">

visudo -f /etc/sudoers.d/zabbix

</code></pre>

<pre zabbix>

zabbix ALL = NOPASSWD:/usr/local/bin/get_smart_value.sh

</pre>

<pre trusted_user>

trusted_user ALL=/bin/bash

</pre>

h2. check configuration

<pre><code class="shell">

visudo -c

</code></pre>