{"id":6845,"date":"2026-05-12T00:40:48","date_gmt":"2026-05-12T03:40:48","guid":{"rendered":"https:\/\/helpsysadmin.com.br\/blog\/?p=6845"},"modified":"2026-05-12T01:25:50","modified_gmt":"2026-05-12T04:25:50","slug":"adding-removing-sudo-privileges-ubuntu","status":"publish","type":"post","link":"https:\/\/helpsysadmin.com.br\/blog\/en\/adding-removing-sudo-privileges-ubuntu\/","title":{"rendered":"Adding and Removing Sudo Privileges in Ubuntu: The Ultimate Guide"},"content":{"rendered":"<div id=\"helps-2885159233\" class=\"helps-before-content-2 helps-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- 2anuncios display quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"5051229894\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<h1 class=\"wp-block-heading\">Adding and Removing Sudo Privileges in Ubuntu: The Ultimate Sysadmin Guide<\/h1>\n\n\n\n<p>In the realm of <a href=\"https:\/\/helpsysadmin.com.br\/blog\/como-instalar-crowdsec\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Como instalar Crowdsec\" target=\"_blank\" rel=\"noopener\">Linux<\/a> administration, managing user permissions is not just a daily task\u2014it is the foundation of server security. For those operating on Debian-based systems, understanding how to manage <strong>sudo privileges in Ubuntu<\/strong> is critical. This guide provides a comprehensive, step-by-step walkthrough on adding, verifying, and revoking administrative rights to keep your environment secure and efficient.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Understanding the Sudo Philosophy<\/h2>\n\n\n\n<p>Before we dive into the technical &#8220;how-to,&#8221; we must address the &#8220;why.&#8221; In Ubuntu, the <code>root<\/code> user is the all-powerful &#8220;God mode&#8221; of the system. However, logging in as root is a major security risk.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is Sudo?<\/h3>\n\n\n\n<p>&#8220;Sudo&#8221; stands for <strong>SuperUser DO<\/strong>. It is a program that allows users to run programs with the security privileges of another user, by default the superuser.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why Use Sudo Privileges in Ubuntu?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Accountability:<\/strong> Every command executed via sudo is logged in <code>\/var\/log\/auth.log<\/code>.<\/li>\n\n\n\n<li><strong>Risk Mitigation:<\/strong> It prevents accidental system-wide changes. You only use elevated privileges when specifically requested.<\/li>\n\n\n\n<li><strong>Granular Control:<\/strong> You can grant access to specific commands rather than giving away the keys to the entire kingdom.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Preparing the Environment: Creating a New User<\/h2>\n\n\n\n<p>To demonstrate how to manage <strong>sudo privileges in Ubuntu<\/strong>, we first need a standard user account. Let\u2019s create a user named <code>helpsysadmin<\/code>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step-by-Step User Creation<\/h3>\n\n\n\n<p>Open your terminal and execute the following command:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo adduser helpsysadmin<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">adduser<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">helpsysadmin<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>The system will prompt you for a password and some optional information (Full Name, Room Number, etc.). Once completed, the user <code>helpsysadmin<\/code> exists but currently has <strong>no administrative power<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Verifying Initial Permissions<\/h3>\n\n\n\n<p>To check if the new user has sudo access, run:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo -l -U helpsysadmin<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">U<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">helpsysadmin<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<p>The output will clearly state: <code>User helpsysadmin is not allowed to run sudo on server<\/code>. This confirms our starting point.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. How to Grant Sudo Privileges in Ubuntu<\/h2>\n\n\n\n<p>There are two primary methods to elevate a user&#8217;s status. We will cover the standard &#8220;Group&#8221; method and the &#8220;Sudoers File&#8221; method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Method A: The User Group Method (Recommended)<\/h3>\n\n\n\n<p>Ubuntu identifies administrative users through a specific group named <code>sudo<\/code>. Any user belonging to this group can execute any command as root.<\/p>\n\n\n\n<p>To add our user to this group:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo usermod -aG sudo helpsysadmin<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">usermod<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">aG<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">helpsysadmin<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>-a<\/code>: Stands for <strong>append<\/strong>. This ensures the user stays in their current groups while joining the new one.<\/li>\n\n\n\n<li><code>-G<\/code>: Specifies the <strong>group<\/strong> name.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method B: Editing the Sudoers File (Advanced)<\/h3>\n\n\n\n<p>If you need more specific control, you can edit the <code>\/etc\/sudoers<\/code> file. <strong>Caution:<\/strong> Never edit this file with a standard text editor. Always use <code>visudo<\/code>, which checks for syntax errors before saving.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Run <code>sudo visudo<\/code>.<\/li>\n\n\n\n<li>Scroll to the end and add: <code>helpsysadmin ALL=(ALL:ALL) ALL<\/code><\/li>\n<\/ol>\n\n\n\n<p>This grants the user full <strong>sudo privileges in Ubuntu<\/strong> across all terminals and commands.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Testing the New Permissions<\/h2>\n\n\n\n<p>Configuring permissions is only half the job; the other half is validation. Follow these steps to ensure the <strong>sudo privileges in Ubuntu<\/strong> were applied correctly:<\/p>\n\n\n\n<p><strong>Switch to the new user:<\/strong><code> su - helpsysadmin<\/code><br><strong>Try an administrative task:<\/strong> <code>sudo apt update<\/code><br><strong>Confirm the prompt:<\/strong> You will be asked for <code>helpsysadmin<\/code>&#8216;s password. If the update starts, you are officially an administrator.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Security Deep-Dive: The Sudoers Policy<\/h2>\n\n\n\n<p>To truly master <strong>sudo privileges in Ubuntu<\/strong>, you must understand how the policy engine works. The <code>\/etc\/sudoers<\/code> file defines who can do what.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The Syntax Explained<\/h3>\n\n\n\n<p>A standard entry looks like this: <code>user host=(runas) commands<\/code><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>User:<\/strong> Who the rule applies to.<\/li>\n\n\n\n<li><strong>Host:<\/strong> Where the rule applies (usually <code>ALL<\/code>).<\/li>\n\n\n\n<li><strong>Runas:<\/strong> Which user the command can be run as (usually <code>ALL<\/code> for root).<\/li>\n\n\n\n<li><strong>Commands:<\/strong> Which specific paths\/binaries can be executed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Hardening the Sudo Configuration<\/h3>\n\n\n\n<p>For high-security environments, you might want to limit a user to only specific tasks, such as restarting the web server: <code>helpsysadmin ALL=(ALL) \/usr\/bin\/systemctl restart nginx<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. How to Revoke Sudo Privileges in Ubuntu<\/h2>\n\n\n\n<p>Removing access is just as important as granting it, especially when offboarding team members or limiting access after a specific project ends.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Removing a User from the Sudo Group<\/h3>\n\n\n\n<p>To strip a user of their administrative rights while keeping their account active, use:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo deluser helpsysadmin sudo<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">deluser<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">helpsysadmin<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sudo<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<p>After running this, the user will revert to a standard user account upon their next login.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Deleting the User Account Completely<\/h3>\n\n\n\n<p>If the user is no longer needed on the system:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo deluser --remove-home helpsysadmin<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">deluser<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">--<\/span><span style=\"color: #D8DEE9\">remove<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">home<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">helpsysadmin<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<p>The <code>--remove-home<\/code> flag ensures that the user&#8217;s files and directory are cleaned up, preventing &#8220;orphaned&#8221; files from cluttering your server.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Auditing and Monitoring Sudo Activity<\/h2>\n\n\n\n<p>A professional sysadmin always keeps an eye on the logs. Monitoring <strong>sudo privileges in Ubuntu<\/strong> ensures that you can trace back any errors or security breaches.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Viewing the Auth Log<\/h3>\n\n\n\n<p>All sudo attempts (successful and failed) are recorded here:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo tail -f \/var\/log\/auth.log<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tail<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/var<\/span><span style=\"color: #D8DEE9FF\">\/<\/span><span style=\"color: #D8DEE9\">log<\/span><span style=\"color: #D8DEE9FF\">\/auth.log<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Searching for Specific Sudo Usage<\/h3>\n\n\n\n<p>To see a history of all sudo commands used by everyone:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>grep \"sudo\" \/var\/log\/auth.log<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">grep<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">sudo<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/var<\/span><span style=\"color: #D8DEE9FF\">\/<\/span><span style=\"color: #D8DEE9\">log<\/span><span style=\"color: #D8DEE9FF\">\/auth.log<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. Troubleshooting Common Sudo Issues<\/h2>\n\n\n\n<p><strong>Issue: &#8220;User is not in the sudoers file. This incident will be reported.&#8221;<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cause:<\/strong> The user was likely added to the group but hasn&#8217;t logged out and back in yet.<\/li>\n\n\n\n<li><strong>Fix:<\/strong> Log out of the session and log back in to refresh group memberships.<\/li>\n<\/ul>\n\n\n\n<p><strong>Issue: Sudo password not working.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cause:<\/strong> Sudo requires the <strong>user&#8217;s<\/strong> password, not the root password.<\/li>\n\n\n\n<li><strong>Fix:<\/strong> Ensure you are typing the password for the current user logged in.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Managing <strong>sudo privileges in Ubuntu<\/strong> is a fundamental skill for any Linux user. Whether you are adding a new developer to a project or securing a production server, following these steps ensures a professional and secure workflow. Remember: with great power comes great responsibility\u2014always audit your sudoers list regularly!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-faq\">FAQ<\/h3>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1778558182471\"><strong class=\"schema-faq-question\">Is sudo safer than logging in as root?<\/strong> <p class=\"schema-faq-answer\">Absolutely. Sudo provides an audit trail and prevents the &#8220;always-on&#8221; risk of a root session.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778558199413\"><strong class=\"schema-faq-question\">Can I use sudo privileges in Ubuntu without a password?<\/strong> <p class=\"schema-faq-answer\">Yes, by adding <code>NOPASSWD: ALL<\/code> in the sudoers file, but this is <strong>highly discouraged<\/strong> for security reasons.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778558235664\"><strong class=\"schema-faq-question\">What is the difference between <code>sudo -i<\/code> and <code>sudo -s<\/code>?<\/strong> <p class=\"schema-faq-answer\"><code>sudo -i<\/code> (initial login) simulates a full login into the root environment, while <code>sudo -s<\/code> just gives you a root shell in your current environment.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778558249458\"><strong class=\"schema-faq-question\">How do I change the sudo password timeout?<\/strong> <p class=\"schema-faq-answer\">Edit <code>\/etc\/sudoers<\/code> using <code>visudo<\/code> and add <code>Defaults env_reset,timestamp_timeout=30<\/code> (where 30 is the number of minutes).<\/p> <\/div> <\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-learn-more\">Learn more:<\/h3>\n\n\n\n<p><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/how-to-configure-a-lamp-with-wordpress-and-lets-encrypt\/\" target=\"_blank\" rel=\"noreferrer noopener\">How to configure a lamp with WordPress and Let&#8217;s Encrypt<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/web-server-war-apache-vs-nginx-vs-litespeed\/\" target=\"_blank\" rel=\"noreferrer noopener\">Web Server War: Apache vs. Nginx vs. Litespeed \u2013 Real benchmarks.<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/complete-guide-directadmin-for-administrators\/\" target=\"_blank\" rel=\"noreferrer noopener\">Complete Guide to DirectAdmin for Administrators: Installation, Security, and Performance<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/benchmark-script-on-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">Benchmark Script on Linux<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/create-an-os-template-in-virtualizor\/\" target=\"_blank\" rel=\"noreferrer noopener\">How to Create an OS Template in Virtualizor: Complete Guide 2025<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adding and Removing Sudo Privileges in Ubuntu: The Ultimate Sysadmin Guide In the realm of Linux administration, managing user permissions is not [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1045,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4456],"tags":[4468,4478,4471,4469,4470,4473,1405],"class_list":["post-6845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-infrastructure-and-cloud-computing","tag-linux-security","tag-root-access","tag-server-management","tag-sudo","tag-sysadmin","tag-terminal","tag-ubuntu"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Adding and Removing Sudo Privileges in Ubuntu<\/title>\n<meta name=\"description\" content=\"Master user management by learning how to grant and revoke sudo privileges in Ubuntu 22.04 &amp; 24.04. 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