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//usr/lib/systemd/system/imunify360-dos-protection.service

[Unit]
Description=Imunify360 DoS Protection
Before=cagefs.service

[Service]
Type=simple
ExecStart=/usr/bin/imunify360-dos-protection
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure
KillMode=mixed
CPUAccounting=true
MemoryAccounting=true
BlockIOAccounting=true
# WARN: systemd interprets '-' as '/' and creates redundant nested slices!
# Full name: /Imunify.slice/Imunify-dos_protection.slice/imunify360-dos-protection.service
Slice=Imunify-dos_protection.slice
NoNewPrivileges=true
# Daemon opens NETLINK_NETFILTER for conntrack events (cmd/srv/server.go)
# and sets NETLINK_LISTEN_ALL_NSID to monitor all network namespaces.
# The NETLINK_LISTEN_ALL_NSID setsockopt is gated on CAP_NET_BROADCAST
# (kernel 5.14.0+ af_netlink.c) in init_user_ns — without it the daemon
# crash-loops on "setsockopt: operation not permitted" before reaching
# "Daemon is ready." (verified live on CL9 + cPanel via strace bisect).
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BROADCAST CAP_KILL
# NoNewPrivileges=true disables the kernel's UID-0 effective-capability
# raise on exec, so even this unit's own ExecStart= binary needs
# AmbientCapabilities= to start with effective != empty. Without it,
# socket(AF_NETLINK, *, NETLINK_NETFILTER) returns EPERM at startup.
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BROADCAST CAP_KILL
ProtectSystem=full
ProtectHome=yes
PrivateTmp=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK

[Install]
WantedBy=multi-user.target