Package: certbot Version: 0.21.1-1~bpo9+1 Severity: normal Dear Maintainer,
on certificate renewal certbot will stop Apache and start it afterwards. The relevant commands are pre_hook and post_hook in /etc/letsencrypt/renewal/CERTNAME.conf. Default behaviour is do stop/start Apache using apachectl which fails in installations running systemd. Apache will stop, but not start again. Fix: use systemctl to start/stop Apache. Regards Jan -- System Information: Debian Release: 9.4 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-6-amd64 (SMP w/2 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages certbot depends on: ii python3 3.5.3-1 ii python3-certbot 0.21.1-1~bpo9+1 certbot recommends no packages. Versions of packages certbot suggests: pn python-certbot-doc <none> ii python3-certbot-apache 0.21.1-1~bpo9+1 pn python3-certbot-nginx <none> -- no debconf information