Mohit https://mohitdudi.github.io/ Recent content on Mohit Hugo en-us Sat, 20 Jun 2026 10:02:00 +0530 Access Control Lists in linux https://mohitdudi.github.io/posts/access-control-lists-linux/ Sat, 20 Jun 2026 10:02:00 +0530 https://mohitdudi.github.io/posts/access-control-lists-linux/ <ul> <li>applicable for both files and folders</li> </ul> <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-sh" data-lang="sh"><span style="display:flex;"><span>getfacl filename </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># -m means modification</span> </span></span><span style="display:flex;"><span>setfacl -m u:oggy:rw filename <span style="color:#75715e"># give user oggy read and write access to filename</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>setfacl -m g:staff:rw filename <span style="color:#75715e"># add permission for a group</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>setfacl -m u:oggy filename <span style="color:#75715e"># remove a entry</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>setfacl -b filename <span style="color:#75715e"># remove all entries</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># -R options recursively changes the acl for sub-directories</span> </span></span></code></pre></div> DWL install on Debian https://mohitdudi.github.io/posts/dwl-install-debian/ Wed, 26 Feb 2025 10:19:00 +0530 https://mohitdudi.github.io/posts/dwl-install-debian/ <blockquote> <p>debian 12 was used to build wlroots 0.18 and dwl 0.7</p> </blockquote> <h2 id="adding-backport-and-testing-repo-s">Adding backport and testing repo&rsquo;s</h2> <ul> <li>Add following lines to your <code>/etc/apt/sources.list</code></li> <li>These repo&rsquo;s are required to pull some version specific packages <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-shell" data-lang="shell"><span style="display:flex;"><span>deb http://deb.debian.org/debian bookworm-backports main </span></span><span style="display:flex;"><span>deb http://deb.debian.org/debian sid main </span></span></code></pre></div></li> </ul> <h2 id="install-required-packages">Install Required Packages</h2> <ul> <li>Same packages are needed by both wlroots and dwl</li> <li>Some packages are pulled from backport and testing repo&rsquo;s due to version requirements</li> <li>This list of packages is not verbose (as of now) <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-shell" data-lang="shell"><span style="display:flex;"><span>apt install -t bookworm-backports libwayland-server0 </span></span><span style="display:flex;"><span>apt install -t sid libliftoff-dev </span></span><span style="display:flex;"><span>apt install meson cmake libgbm-dev glslang-dev glslang-tools libudev-dev libseat-dev hwdata libdisplay-info-dev libinput-dev libxcb-dri3-dev libxcb-present-dev libxcb-render-util0-dev libxcb-xinput-dev xwayland libxcb-errors-dev libxcb-composite0-dev libxcb-ewmh-dev libxcb-icccm4-dev libxcb-res0-dev </span></span></code></pre></div></li> </ul> <h2 id="wlroots">Wlroots</h2> <blockquote> <p>Building wlroots is recommended as you can customize your build (enabling Xwayland support)</p> Debian WiFi Issue https://mohitdudi.github.io/posts/debian-wifi-issue/ Thu, 30 Jan 2025 10:14:00 +0530 https://mohitdudi.github.io/posts/debian-wifi-issue/ <h2 id="what-happened">What happened</h2> <ul> <li>I have faced this issue multiple times after installing debian</li> <li>Each time during installation WiFi worked but after that it didn&rsquo;t, initially I thought that there was some issue of firmware</li> <li>But this time after installation wifi worked, but <code>nmcli device</code> had a problem, it always showed that the device was <code>unmanaged</code></li> <li>So I tried different things and finally was able to resolve the issue</li> </ul> <h2 id="solution--source">Solution (<a href="https://www.linuxquestions.org/questions/linux-networking-3/wifi-card-device-or-resource-busy-4175479576/">Source</a>)</h2> <ul> <li>Just add the following line to your grub config (/etc/grub.d/10_linux)</li> </ul> <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>GRUB_CMDLINE_LINUX_DEFAULT<span style="color:#f92672">=</span><span style="color:#e6db74">&#34;quiet splash acpi=force&#34;</span> </span></span></code></pre></div><ul> <li>After that generate grub config</li> </ul> <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>grub-mkconfig </span></span></code></pre></div><ul> <li>Now just reboot</li> </ul> DWL install on Fedora https://mohitdudi.github.io/posts/dwl-install-fedora/ Fri, 20 Dec 2024 10:19:00 +0530 https://mohitdudi.github.io/posts/dwl-install-fedora/ <blockquote> <p>fedora 41 was used to build wlroots 0.18 and dwl 0.7</p> </blockquote> <h2 id="install-required-packages">Install Required Packages</h2> <ul> <li>Same packages are needed by both wlroots and dwl <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-shell" data-lang="shell"><span style="display:flex;"><span>sudo dnf install make gcc libinput-devel meson wayland-devel wayland-utils wayland-protocols-devel waylandpp-devel libdrm-devel libxkbcommon-devel pixman-devel xcb-util-cursor-devel xcb-util-errors-devel xcb-util-xrm-devel xcb-util-devel mesa-libgbm-devel lcms2-devel vulkan-loader-devel glslang-devel libseat-devel hwdata-devel libdisplay-info-devel libliftoff-devel xcb-util-wm-devel xorg-x11-server-Xwayland xorg-x11-server-Xwayland-devel cairo-devel </span></span></code></pre></div></li> </ul> <h2 id="wlroots">Wlroots</h2> <blockquote> <p>Building wlroots is recommended as you can customize your build (enabling Xwayland support)</p> </blockquote> <ul> <li>Clone and build <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-shell" data-lang="shell"><span style="display:flex;"><span>git clone --branch 0.18 https://gitlab.freedesktop.org/wlroots/wlroots.git </span></span><span style="display:flex;"><span>cd wlroots/ </span></span><span style="display:flex;"><span>meson setup build </span></span><span style="display:flex;"><span>ninja -C build </span></span></code></pre></div></li> </ul> <blockquote> <p>To enable Xwayland support edit <code>meson.build</code> and set <code>x11-backend</code> and <code>xwayland</code> to <code>true</code> in features</p>