Hej sahsanu
sorry for the late response. I did it several ways. First I copied/pasted it from this website. Then I typed it manually. Usually I use sudo crontab -e or as root user crontab -e.
Not sure if I answered your question right.
But I found a workaround. Based on your replies here I have disabled certbot.timer and added the following line to my crontab:
30 3 * * 1 systemctl start certbot.service
I have tested it this way:
*/15 * * * * systemctl start certbot.service
and could find the following in the logs:
...
Apr 27 18:15:01 winter-pi systemd[1]: Starting Certbot...
(...)
Apr 27 18:30:01 winter-pi systemd[1]: Starting Certbot...
...
-rw-r--r-- 1 root root 1635 Apr 27 18:30 letsencrypt.log
-rw-r--r-- 1 root root 1635 Apr 27 18:15 letsencrypt.log.1
Anyhow, I would like to know why my previous setup did not work.
Thank you much in advance.
Kind regards
//neph