https://my-it-blog.netlify.app/tags/ns-records/ Recent content in NS Records on My IT Journal Hugo en-us Thu, 02 Jul 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/private-dns/ Thu, 02 Jul 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/private-dns/ <h1 id="private-dns-infrastructure-with-bind9">Private DNS Infrastructure with BIND9</h1> <h2 id="objective">Objective</h2> <p>Build a private DNS infrastructure using BIND9 where:</p> <ul> <li>A DNS server resolves names in the company.lab domain.</li> <li>A web server hosts a website.</li> <li>A client uses the DNS server to locate and access the web server.</li> </ul> <hr> <h2 id="environment">Environment</h2> <ul> <li>Virtualization: VirtualBox</li> <li>OS: ( 1 DNS Server VM + 1 Web Server VM + 1 Client VM)</li> </ul> <hr> <h2 id="network-topology">Network Topology</h2> <p><img alt="dns-topology" loading="lazy" src="https://my-it-blog.netlify.app/posts/private-dns/dns-topology.png"></p> <hr> <h2 id="phase-1---configure-dns-server">Phase 1 - Configure DNS Server</h2> <h3 id="step-1---install-bind9-and-verify">Step 1 - Install BIND9 and verify</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 apt update </span></span><span style="display:flex;"><span>sudo apt install bind9 bind9-utils dnsutils </span></span><span style="display:flex;"><span>sudo systemctl status named/bind9 </span></span><span style="display:flex;"><span>ss -tulnp | grep 192.168.10.10:53 </span></span></code></pre></div><p><img alt="bind9-status" loading="lazy" src="https://my-it-blog.netlify.app/posts/private-dns/bind9-status.png"> <img alt="verify" loading="lazy" src="https://my-it-blog.netlify.app/posts/private-dns/verify-bind.png"></p>