Step-by-step playbooks for when things go sideways. Interactive checklists with copy-paste commands.
Renew an expired or expiring SSL/TLS certificate. Covers Let's Encrypt/certbot renewal, manual certificate replacement, web server reload, and auto-renewal setup.
Diagnose TLS/SSL connection failures. Covers certificate issues, version mismatches, cipher incompatibility, chain problems, SNI, and mTLS failures.