https://alexej.disterhoft.de/posts/Recent content in Posts on alexej.disterhoft.deHugoenAlexej DisterhoftSat, 04 Apr 2026 00:00:00 +0200https://alexej.disterhoft.de/posts/reverse-engineering-the-mapr-ticket-format/Tue, 26 Dec 2023 22:19:21 +0100https://alexej.disterhoft.de/posts/reverse-engineering-the-mapr-ticket-format/<aside class="admonition admonition-warning" role="note"> <p class="admonition-title"><span class="admonition-icon i-lineicons-warning" aria-hidden="true"></span><span>Disclaimer</span> </p> <div class="admonition-body">The information in this post is based entirely on publicly available artifacts. No proprietary information is disclosed. Code snippets have been heavily redacted for educational purposes.</div> </aside> <h2 id="introduction"> <a class="heading-anchor" href="#introduction" aria-label="Link to this section" title="Link to this section" > <span aria-hidden="true">#</span> </a> Introduction </h2> <p>MapR, now rebranded as <a href="https://www.hpe.com/us/en/hpe-ezmeral-data-fabric.html">HPE Ezmeral Data Fabric</a>, is a comprehensive data platform built on the Hadoop stack. It bundles a distributed file system, a NoSQL database, a streaming engine, and many other components into a single system.</p>https://alexej.disterhoft.de/posts/sudo-touch-id-macos/Tue, 26 Dec 2023 00:00:00 +0100https://alexej.disterhoft.de/posts/sudo-touch-id-macos/<p>On macOS Sonoma and newer, <code>sudo</code> still defaults to password authentication. If your Mac has Touch ID, you can enable fingerprint approval with a local PAM config that persists across updates.</p> <h2 id="enable-touch-id-for-sudo"> <a class="heading-anchor" href="#enable-touch-id-for-sudo" aria-label="Link to this section" title="Link to this section" > <span aria-hidden="true">#</span> </a> Enable Touch ID for sudo </h2> <ol> <li> <p>Open <code>/etc/pam.d</code> and confirm the template file exists.</p> <div class="code-block" data-collapsed-default="false"> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell-session" data-lang="shell-session"><span class="line"><span class="cl"><span class="gp">$</span> <span class="nb">cd</span> /etc/pam.d </span></span><span class="line"><span class="cl"><span class="gp">$</span> ls -l sudo* </span></span><span class="line"><span class="cl"><span class="go">.r--r--r-- 283 root 16 Sep 15:28 sudo </span></span></span><span class="line"><span class="cl"><span class="go">.r--r--r-- 179 root 16 Sep 15:28 sudo_local.template </span></span></span></code></pre></div> </div> </li> <li> <p>Create <code>sudo_local</code> from the template.</p>