Ask HN: What's in your crontab?
Do you still have a personal crontab in 2025? What sorts of jobs does it contain? What cron daemon runs it? Where is it hosted?
# Runs the IP change check on Mon - Sun at 09:00, 10:30, 12:00, 20:00 -- If the power goes out or the router reboots I get a new IP. On the server I use fail2ban and if I log into the admin panel I might get banned for making too many requests. So my IP needs to be "blessed".
# Runs Letsencrypt certificate expiry check on Sundays at 11:00 and 18:00 -- I still have a server where I update the certificates by hand.
# Runs the "daily" backup -- Just rsync
# Download Godaddy auction data every day at 19:00 -- I don't actively do this anymore but I used to check, based on certain criteria, for domains that were about to expire.
# Download the sellers.json on the 1st of every month at 19:00 -- I use this to collect data on websites that appear and disappear from the Mediavine and Adthrive sellers.json
- 'chronyc makestep'
- Overwrite the console with ASCII art.
- Refresh DNS A/NS cache for a few hundred domains in Unbound DNS.
- fstrim once a week.
- Custom log rotate and truncate.
- RSnapshot
- Gateway check, arp deletions if gateway fail-over occurs.
Some of that on workstations, some on servers, some on both.