https://lintech.uk/lab-notes/networking/Recent content in Networking on Richard LinternHugo -- gohugo.ioen-GBCopyright © 2026 Richard LinternMon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/connectivity-port-testing/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/connectivity-port-testing/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Separate DNS, route, TCP, TLS and application-layer connectivity faults.</p>https://lintech.uk/lab-notes/networking/dhcp-client-troubleshooting/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/dhcp-client-troubleshooting/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Workflow for address assignment, lease, gateway, DNS options and conflict symptoms. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>https://lintech.uk/lab-notes/networking/dns-exposure-management/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/dns-exposure-management/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Plan and validate internal DNS, public DNS, ingress and protected service exposure.</p>https://lintech.uk/lab-notes/networking/dns-resolution-troubleshooting/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/dns-resolution-troubleshooting/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Cross-platform workflow for resolver, record, cache, suffix and upstream DNS faults. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>https://lintech.uk/lab-notes/networking/unifi-client-connectivity/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/unifi-client-connectivity/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Support workflow for association, VLAN, lease, DNS, roaming and access problems. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>https://lintech.uk/lab-notes/networking/unifi-dhcp-troubleshooting/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/unifi-dhcp-troubleshooting/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Investigate UniFi network DHCP scopes, leases, gateway and DNS options. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>https://lintech.uk/lab-notes/networking/vpn-connectivity-troubleshooting/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/vpn-connectivity-troubleshooting/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Workflow for client state, DNS, routes, policy, authentication and service reachability. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>https://lintech.uk/lab-notes/networking/wifi-connectivity-troubleshooting/Mon, 31 Aug 2026 00:00:00 +0000https://lintech.uk/lab-notes/networking/wifi-connectivity-troubleshooting/<blockquote><p><strong>Time guide</strong></p> <ul> <li>Initial checks: approximately 10 to 20 minutes</li> <li>Detailed investigation: approximately 20 to 60 minutes</li> </ul> </blockquote> <h2 class="relative group">Purpose <div id="purpose" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#purpose" aria-label="Anchor">#</a> </span> </h2> <p>Workflow for signal, association, DHCP, DNS, gateway and internet access. This public reference consolidates professional support experience developed since March 2022 and uses generic placeholders rather than employer or customer information.</p>