is_debuntu: True
is_ubuntu: True
dns_service: bind9
dns_user: bind
dhcp_service: isc-dhcp-server
proxy: squid
proxy_user: proxy
apache_service: apache2
apache_user: www-data
apache_config_dir: apache2/sites-available
apache_log_dir: /var/log/apache2
smb_service: smbd
nmb_service: nmbd
systemctl_program: /bin/systemctl
# issue raised 
mysql_service: mysql
apache_log: /var/log/apache2/access.log
sshd_service: ssh
php_version: 7.1
postgresql_version: 9.6
systemd_location: /lib/systemd/system
# Upgrade Ubuntu 17.10's Calibre 3.7.0 to very latest:
calibre_via_debs: False
calibre_via_python: True