9 guides
Clients stuck on 169.254 addresses? Work through DHCP scope state, AD authorization, pool exhaustion, conflicts, relay/IP helper, and firewall to fix it fast.
Set up an Nginx reverse proxy with Docker Compose: route multiple apps on one host, configure proxy_pass, use Docker networks, and add TLS.
Understand and configure vmbr0, the Proxmox Linux bridge: how it works, editing /etc/network/interfaces, attaching VMs, adding a second bridge, and fixing no-internet issues.
Hyper-V VM has no internet? Work through the virtual switch type, NAT setup, VM adapter, host firewall, and DNS to get your guest back online for good.
Fix the Docker 'port is already allocated' error: find what's using the port with docker ps, ss, and lsof, then free it or change the mapping.
Create an external virtual switch in Hyper-V the right way. Switch types compared, Hyper-V Manager and New-VMSwitch steps, and how to avoid losing host network.
Learn what still works for NIC teaming in Windows 10, how to use New-NetSwitchTeam, when to use Windows Server LBFO instead, and how to remove a team safely.
Set up NIC Teaming on Windows Server 2025 with PowerShell. Learn when to use LBFO, when Hyper-V needs SET, and how to avoid common network mistakes.
Learn the real Windows 11 NIC teaming options, why old PowerShell commands fail, how to check NetLbfo and NetSwitchTeam, and what to use instead.