Incident Runbooks

Step-by-step playbooks for when things go sideways. Interactive checklists with copy-paste commands.

Connection Refused — SSH Troubleshooting Guide

Diagnose and fix SSH connection failures. Covers network connectivity, sshd configuration, firewall rules, fail2ban, and daemon troubleshooting.

10 min7 steps

linuxsshnetworkingconnectionfirewall

Container Network Failure — Docker Troubleshooting Guide

Troubleshoot Docker container networking failures. Covers DNS resolution, inter-container communication, network inspection, and firewall rules.

15 min7 steps

dockernetworkingdnsconnectivitycontainers

WireGuard Peer Unreachable — Tunnel Debugging

Fix a WireGuard tunnel where peers can't reach each other. Covers handshake failure, AllowedIPs + routing, UDP firewalling, IP forwarding, and NAT/masquerade for site-to-site setups.

20 min7 steps

wireguardvpntunnelnetworkingfirewallrouting