I have SSL installed, and I think that the way to auto-renew SSL certification is by putting this crontab entry:
0 7 * * * sudo certbot renew
The command sudo crontab -l gives the following output:
# Edit this file to introduce tasks to be run by cron.
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use ‘*’ in these fields (for ‘any’).
# Notice that tasks will be started based on the cron’s system
# daemon’s notion of time and timezones.
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
# For more information see the manual pages of crontab(5) and cron(8)
# m h dom mon dow command
0 7 * * * sudo certbot renew >> /tmp/ct1
When I run sudo certbot renew to test, it gives the following output:
sudo: certbot: command not found
When I check /var/log/syslog, I get these entries:
Mar 22 10:53:01 edx-tutor-dev CRON: (root) CMD (sudo certbot renew >>/tmp/ct1)
Mar 22 10:53:01 edx-tutor-dev CRON: (CRON) info (No MTA installed, discarding output)
The command is not executing. Can I please know how this command will get executed? Is my setup wrong somewhere?
Thanks in advance for your help.