{ "helper": [ { "name": "amanda", "description": "Amanda backup and archiving proto", "family": "any", "module": "nf_conntrack_amanda", "port": "10080", "proto": "udp" }, { "name": "ftp", "description": "FTP passive connection tracking", "family": "any", "module": "nf_conntrack_ftp", "port": "21", "proto": "tcp" }, { "name": "RAS", "description": "RAS proto tracking", "family": "any", "module": "nf_conntrack_h323", "port": "1719", "proto": "udp" }, { "name": "Q.931", "description": "Q.931 proto tracking", "family": "any", "module": "nf_conntrack_h323", "port": "1720", "proto": "tcp" }, { "name": "irc", "description": "IRC DCC connection tracking", "family": "ipv4", "module": "nf_conntrack_irc", "port": "6667", "proto": "tcp" }, { "name": "netbios-ns", "description": "NetBIOS name service broadcast tracking", "family": "ipv4", "module": "nf_conntrack_netbios_ns", "port": "137", "proto": "udp" }, { "name": "pptp", "description": "PPTP VPN connection tracking", "family": "ipv4", "module": "nf_conntrack_pptp", "port": "1723", "proto": "tcp" }, { "name": "sane", "description": "SANE scanner connection tracking", "family": "any", "module": "nf_conntrack_sane", "port": "6566", "proto": "tcp" }, { "name": "sip", "description": "SIP VoIP connection tracking", "family": "any", "module": "nf_conntrack_sip", "port": "5060", "proto": "udp" }, { "name": "snmp", "description": "SNMP monitoring connection tracking", "family": "ipv4", "module": "nf_conntrack_snmp", "port": "161", "proto": "udp" }, { "name": "tftp", "description": "TFTP connection tracking", "family": "any", "module": "nf_conntrack_tftp", "port": "69", "proto": "udp" }, { "name": "rtsp", "description": "RTSP connection tracking", "family": "ipv4", "module": "nf_conntrack_rtsp", "port": "554", "proto": "tcp" } ] }