add: systemd service unit

myip.service

@@ -0,0 +1,36 @@
+[Unit]
+Description=Replies with peer's IP on port 7878
+After=network.target
+
+[Service]
+ExecStart=/usr/local/bin/myip
+
+ProtectProc=invisible
+DynamicUser=true
+NoNewPrivileges=true
+MemoryDenyWriteExecute=true
+LockPersonality=true
+RestrictRealtime=true
+RestrictSUIDSGID=true
+RemoveIPC=true
+SystemCallFilter=@system-service
+ProtectSystem=strict
+ProtectHome=true
+RuntimeDirectory=myip
+PrivateTmp=true
+PrivateDevices=true
+PrivateUsers=true
+ProtectHostname=true
+ProtectClock=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+ProtectControlGroups=true
+SystemCallArchitectures=native
+RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
+
+CapabilityBoundingSet=
+
+
+[Install]
+WantedBy=multi-user.target