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certbotCertbot crontab for automatic certificate renewals


SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && perl -e 'sleep int(rand(43200))' && certbot -q renewctrl + c
0 */12

will launch renewal checker every 12 hours

certbot -q renew

command to renew certificates