https://www.compilemymind.com/categories/system-administration/ Recent content in System-Administration on Compile My Mind Hugo en Wed, 15 Jul 2026 20:08:42 +0300 https://www.compilemymind.com/posts/troubleshooting-windows-dns-powershell/ Wed, 15 Jul 2026 20:08:42 +0300 https://www.compilemymind.com/posts/troubleshooting-windows-dns-powershell/ <h2 id="direct-answer">Direct answer</h2> <p>Windows DNS failures should be separated into three questions: does the machine have the expected interface and resolver settings, can it reach a resolver, and does the resolver return the record being requested? <code>Get-NetIPConfiguration</code>, <code>Test-NetConnection</code>, and <code>Resolve-DnsName</code> answer those questions without changing the adapter or DNS cache. This guide is for administrators who need a safe, repeatable diagnosis before changing DHCP, firewall, or server configuration.</p> <h2 id="start-with-local-configuration">Start with local configuration</h2> <p><code>Get-NetIPConfiguration</code> shows the interface, address, gateway, and DNS server assignments that Windows is using. Save the output before making a change. A missing address, an unexpected gateway, or a resolver from the wrong network explains many apparent DNS failures.</p> https://www.compilemymind.com/posts/kubernetes-probe-misconfigurations-fixes/ Wed, 15 Jul 2026 19:31:37 +0300 https://www.compilemymind.com/posts/kubernetes-probe-misconfigurations-fixes/ <h2 id="direct-answer">Direct answer</h2> <p>Kubernetes probes fail when the check does not match the application&rsquo;s startup time, listening address, endpoint, or expected response. A liveness probe decides whether a container should be restarted, a readiness probe decides whether traffic should be sent, and a startup probe gives a slow-starting container time to initialize before the other checks matter. Diagnose the probe type first, then verify the command, HTTP path, port, and timing values against the running Pod.</p> https://www.compilemymind.com/posts/troubleshooting-windows-event-logs-powershell/ Wed, 15 Jul 2026 18:49:56 +0300 https://www.compilemymind.com/posts/troubleshooting-windows-event-logs-powershell/ This article guides system administrators on troubleshooting Windows Event Logs using PowerShell&rsquo;s Get-WinEvent and the wevtutil command-line tool, focusing on efficient, read-only queries, filtering, remote access, and safe export techniques.