[Unit]
Description=AdGuardHome: Network-level blocker
ConditionFileIsExecutable=__INSTALL_DIR__/AdGuardHome
After=syslog.target network-online.target nginx.service

[Service]
Type=simple
User=__APP__
Group=__APP__
StartLimitInterval=5
StartLimitBurst=10
WorkingDirectory=__INSTALL_DIR__/
ExecStart=__INSTALL_DIR__/AdGuardHome --no-check-update
Restart=always
RestartSec=10
#EnvironmentFile=-/etc/sysconfig/AdGuardHome

# Sandboxing options to harden security
# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
NoNewPrivileges=no
PrivateTmp=yes
PrivateDevices=no
RestrictNamespaces=no
RestrictRealtime=no
DevicePolicy=closed
ProtectClock=no
ProtectHostname=no
ProtectProc=invisible
ProtectSystem=full
ProtectControlGroups=yes
ProtectKernelModules=no
ProtectKernelTunables=no
LockPersonality=no
SystemCallFilter=

# Denying access to capabilities that should not be relevant for webapps
# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD
CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT
CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK
CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM
CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE
CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG

[Install]
WantedBy=multi-user.target