UNIX and the Internet
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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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Solution clearly explains popular and important terms in UNIX and Internet
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1)
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 ...
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