[Unit]
Description=Performs periodically, at arbitrary times, verification for renewal of Let's Encrypt certificates
[Timer]
OnCalendar=*-*-* 12,00:00:00
Unit=certbot-renew.service
AccuracySec=1h
RandomizedDelaySec=6h
When setting these options consider the following:
- How long is your average request?
- What is the maximum number of simultaneous visitors the site(s) get?
- How much memory on average does each child process consume?
sudo grep max_children /var/log/php?.?-fpm.log.1 /var/log/php?.?-fpm.log