ZyXEL Communications nbg-418n User Manual
Appendix E Common Services
NBG-418N User’s Guide
211
SQL-NET
TCP
1521
Structured Query Language is an interface to
access data on many different types of database
systems, including mainframes, midrange systems,
UNIX systems and network servers.
access data on many different types of database
systems, including mainframes, midrange systems,
UNIX systems and network servers.
SSH
TCP/UDP
22
Secure Shell Remote Login Program.
STRM WORKS
UDP
1558
Stream Works Protocol.
SYSLOG
UDP
514
Syslog allows you to send system logs to a UNIX
server.
server.
TACACS
UDP
49
Login Host Protocol used for (Terminal Access
Controller Access Control System).
Controller Access Control System).
TELNET
TCP
23
Telnet is the login and terminal emulation protocol
common on the Internet and in UNIX environments.
It operates over TCP/IP networks. Its primary
function is to allow users to log into remote host
systems.
common on the Internet and in UNIX environments.
It operates over TCP/IP networks. Its primary
function is to allow users to log into remote host
systems.
TFTP
UDP
69
Trivial File Transfer Protocol is an Internet file
transfer protocol similar to FTP, but uses the UDP
(User Datagram Protocol) rather than TCP
(Transmission Control Protocol).
transfer protocol similar to FTP, but uses the UDP
(User Datagram Protocol) rather than TCP
(Transmission Control Protocol).
VDOLIVE
TCP
7000
Another videoconferencing solution.
Table 74
Commonly Used Services (continued)
NAME
PROTOCOL
PORT(S)
DESCRIPTION