What is the /etc/hosts File?

Beginners Guide to Sockets

(Continued from previous question...)

What is the /etc/hosts File?

The correspondence between host names and IP addresses is maintained in a file called hosts in the (top-level) directory /etc. On most systems, any user can read this file. (A word of caution: on many systems, printing this file may be injurious to local paper supply!!)

Entries in this file look like the following:

127.0.0.1		localhost
192.217.44.208	snoopy beagle hound metlife
153.110.34.18	bugs wabbit wascal
153.110.34.19	elmer
153.110.34.20	sam

Note that more than one name may be associated with a given IP address. This file is used when converting from IP address to host name and vice versa.

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Other Interview Questions

• What is Socket Programming ?
• What this function socketpair() does?
• What this function socket() does?
• What this function bind() does?
• What this function connect() does?
• What this function sendto() does?
• What this function recvfrom() does?
• Code Sample: How to disposing of a Socket ?
• How Sockets can be used to write client-server applications using a connection-oriented client-server technique ?
• Code Sample: How to make a Socket a Listen-only Connection Endpoint - listen()
• Code Sample: Connection Establishment by Server - accept()
• Code Sample:Data Transfer over Connected Sockets - send() and recv()
• Code Sample:A Connection-Oriented Example - listen(), accept()
• What is the IP Address ?
• What is Network Host Names?
• What is the /etc/hosts File?
• How to Selecte a Service Port?
• How to Put a Host Program Address Together?
• How to finding a Machine Address?
• Code Sample:Routines for converting data between a host's internal representation and Network Byte Order
• Code Sample:Network Address Conversion Routines
• Code Sample:Server Source Listing
• Code Sample: Client Source Listing