Troubleshooting

A dead man's switch alerts you when a cron job stops running — the failure normal monitoring misses. Here's how heartbeat monitoring works and how to add it in one line.

Your cron job isn't running or silently stopped? Here are the 7 most common reasons crontab fails — PATH, permissions, syntax, environment — plus how to catch it next time.

Four reliable ways to confirm whether a cron job actually ran and succeeded — from syslog and exit codes to email and heartbeat monitoring — with the trade-offs of each.