Linux Socket Programming by Example - Warren Gay
CloseLinux Socket Programming by Example
   Table of Contents
  OpenPreface>
   I: Basic Socket Concepts
  Open1. Introducing Sockets
  Open2. Domains and Address Families
  Open3. Address Conversion Functions
  Open4. Socket Types and Protocols
  Open5. Binding Addresses to a Socket
  Open6. Connectionless-Oriented Protocols
  Open7. Connection-Oriented Protocols for Clients
  Open8. Connection-Oriented Protocols for Servers
  Open9. Hostname and Network Name Lookups
   II: Advanced Socket Programming
  Open10. Using Standard I/O on Sockets
  Open11. Concurrent Client Servers
  Open12. Socket Options
  Open13. Broadcasting with UDP
  Open14. Out-of-Band Data
  Open15. Using the inetd Daemon
  Open16. Network Security Programming
  Open17. Passing Credentials and File Descriptors
  Open18. A Practical Network Project
   Appendixes
  OpenA. Socket Function Quick Reference
  OpenB. Socket-Related Structures Reference
   C. Useful Network Tables
   glossary
   Index
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Chapter 15. Using the inetd Daemon

Each server running under UNIX offering a service normally executes as a separate process. When the number of services being offered becomes large, however, this becomes a burden to the system. This is because resources must be allocated to each server process running, even when there are no current requests for the services being offered.

Additionally, it can be observed that most server programs use the same general procedure to create, bind, listen, and accept new client connections. A similar observation can be made for connectionless server operation.

In this chapter, you will learn about

  • What the inetd daemon is

  • How inetd solves the server resource utilization issue

  • How inetd simplifies the writing of servers
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