Second that using -0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && perl -e 'sleep int(rand(3600))' && certbot -q renew +0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && / bin/sh -c "/bin/sleep $((RANDOM%3600))" && certbot -q renew
Corb
