Port 541 uucp-rlogin - System Port | Service Name:uucp-rlogin

Port 541 is a System Port. Transport Protocol TCP UDP , Port 541 Service Name uucp-rlogin, Service Name Description: uucp-rlogin.

Port	Protocol	Service Name	Description	Source
541	TCP UDP	uucp-rlogin	uucp-rlogin	IANA
541	TCP UDP	uucp-rlogin	uucp-rlogin	bekkoame

Port	Service Name	Description
1973	dlsrap	Data Link Switching Remote Access Protocol
2067	dlswpn	Data Link Switch Write Port Number
2193	drwcs	Dr.Web Enterprise Management Service
2448	hpppssvr	hpppsvr
3869	ovsam-mgmt	hp OVSAM MgmtServer Disco
4231	vrml-multi-use	VRML Multi User Systems
4978		Unassigned
6043	x11	X Window System
6386		Unassigned
6416		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535