[Unit]
Description=SSL tunnel for network daemons (instance %i)
After=network.target nss-lookup.target
PartOf=stunnel4.service
ReloadPropagatedFrom=stunnel4.service

[Service]
ExecStart=/usr/bin/stunnel4 /etc/stunnel/%i.conf
ExecReload=/bin/kill -HUP ${MAINPID}
KillSignal=SIGINT
TimeoutStartSec=120
TimeoutStopSec=60
Restart=on-failure

# Hardening
NoNewPrivileges=yes
PrivateDevices=yes
ProtectHome=yes
ProtectSystem=strict
PrivateDevices=yes
ProtectControlGroups=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
RestrictAddressFamilies=AF_INET AF_INET6

[Install]
WantedBy=multi-user.target