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UNIX and the Internet

1. 2-3 sentences, define each of the following terms as they relate to UNIX and the Internet:

a) Port
b) Client
c) IP address
d) Server
e) Protocol
f) Nslookup
g) Usenet
h) Traceroute
i) lynx
j) ftp

2. What is the importance and/or use of the program Telnet?

3. My co-worker Mark and I both regularly use our mainframe UNIX system. I've fingered him, and know that he's logged on. While I do not want to have a conversation with him, instant messenger with him, or send him an email, I would like to send him a short message to meet for a break at 2:00. From within the UNIX system, and without using the mail command, is there a utility that would allow me to do this? If so, how does it work?

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I am glad to help you with these questions.

All the best for your future.

Please find the answers below.

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a) Port
Computer port (hardware), a physical interface between a computer and other computers or devices

Computer port (software), a virtual data connection between computer programs possibly through a computer network

TCP and UDP ports, numbers which are recognized by Internet and other network protocols, enabling the computer to interact with others

b) Client

A client is an application or system that accesses a (remote) service on another computer system known as a server by way of a network.

c) IP address

An IP address (Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with ...

Solution Summary

Solution clearly explains popular and important terms in UNIX and Internet