Network Operations

Cross-platform network troubleshooting (Windows, macOS, Linux) via local or remote shell. Use for: DNS broken, can't resolve hostnames, nslookup/dig works but apps fail, NRPT, WFP, scutil, /etc/resolver, systemd-resolved, resolv.conf, NetworkManager, VPN DNS leak residue (ProtonVPN/Mullvad/WireGuard/AnyConnect), AV/firewall blocking DNS or DoH, Tailscale DNS, remote diagnostics over SSH, mapped drive Disconnected, SMB share unreachable, NAS by hostname fails but IP works, single-label hostname, LLMNR/NetBIOS, System error 5 on net use, NextDNS, DoH profile pinning, flushdns needed after every reboot, wrong DNS profile after reboot, inheriting router DNS profile, boot-orde…