https://my-it-blog.netlify.app/tags/acl/ Recent content in ACL on My IT Journal Hugo en-us Sat, 18 Apr 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/linux-permission-access-control/ Sat, 18 Apr 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/linux-permission-access-control/ <h1 id="-linux-permission-and-access-control-lab">🧪 Linux Permission and Access Control Lab</h1> <h2 id="-objective">📌 Objective</h2> <p>To test how Linux file permissions and access control mechanisms work in a multi-user environment.</p> <hr> <h2 id="-environment">⚙️ Environment</h2> <ul> <li>OS: Ubuntu</li> <li>Tools: chmod, chown, ls, groups, sudo</li> <li>Users: alice, bob, admin</li> <li>Groups: devs, managers</li> </ul> <hr> <h2 id="-setup">🛠️ Setup</h2> <h3 id="1-create-users">1. Create Users</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>sudo adduser alice </span></span><span style="display:flex;"><span>sudo adduser bob </span></span><span style="display:flex;"><span>sudo adduser admin </span></span></code></pre></div><hr> <h3 id="2-create-groups">2. Create Groups</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>sudo groupadd devs </span></span><span style="display:flex;"><span>sudo groupadd managers </span></span></code></pre></div><p>Assign users:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>sudo usermod -aG devs alice </span></span><span style="display:flex;"><span>sudo usermod -aG managers bob </span></span><span style="display:flex;"><span>sudo usermod -aG devs admin </span></span><span style="display:flex;"><span>sudo usermod -aG managers admin </span></span></code></pre></div><p><img alt="Add_Groups" loading="lazy" src="https://my-it-blog.netlify.app/posts/linux-permission-access-control/add_groups.png"></p>