...evice. Use an nlmon device when you want to monitor system Netlink messages. fou Foo-over-UDP tunneling. xfrm A virtual tunnel interface like vti/vti6 but with several advantage…...mily. protoname The name of the protocol used for this transport. Can currently be either udp , tcp or empty. device This field is always empty in FreeBSD . libraries This field…...(Internet Assigned Numbers Authority), and their current policy is to assign both TCP and UDP protocols when assigning a port number. Therefore, most entries will have two entri…...e socket. /proc/net/snmp This file holds the ASCII data needed for the IP, ICMP, TCP, and UDP management information bases for an SNMP agent. /proc/net/tcp Holds a dump of the T…...e socket. /proc/net/snmp This file holds the ASCII data needed for the IP, ICMP, TCP, and UDP management information bases for an SNMP agent. /proc/net/tcp Holds a dump of the T…...= ) when used for IP sockets refers to TCP sockets, SOCK_DGRAM (i.e. ListenDatagram= ) to UDP. These options may be specified more than once, in which case incoming traffic on a…...ld descriptions are: protocol the native name for the protocol. For example ip , tcp , or udp . number the official number for this protocol as it will appear within the IP head…Resource control unit settings NAME systemd.resource-control - Resource control unit settings SYNOPSIS slice .slice, scope .scope, service .service, socket .socket, mount .mount, s…Network configuration NAME systemd.network - Network configuration SYNOPSIS network .network DESCRIPTION A plain ini-style text file that encodes network configuration for matching…