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Revision as of 05:36, 23 January 2013
 | This article needs additional citations for verification. (April 2011) |
| Developer(s) | Rob Braun |
|---|---|
| Stable release | 2.3.15
/ May 9, 2012 |
| Repository | |
| Operating system | Unix-like |
| Type | Daemon |
| Website | http://www.xinetd.org/ |
In computer networking, xinetd (extended Internet daemon) is an open-source super-server daemon which runs on many Unix-like systems and manages Internet-based connectivity. It offers a more secure extension to or version of inetd, the Internet daemon, thus most modern Linux distributions have switched to it.[1]
Use
xinetd listens for incoming requests over a network and launches the appropriate service for that request.[2]
Requests are made using port numbers as identifiers and xinetd usually launches another daemon to handle the request. It can be used to start services with both privileged and non-privileged port numbers.
Configuration of xinetd resides in the default configuration file /etc/xinetd.conf and configuration of the services it supports reside in configuration files stored in the /etc/xinetd.d directory. The configuration for each service usually includes a switch to control whether xinetd should enable or disable the service.
xinetd features access control mechanisms such as TCP Wrapper ACLs, extensive logging capabilities, and the ability to make services available based on time. It can place limits on the number of servers that the system can start, and has deployable defense mechanisms to protect against port scanners, among other things.
On some implementations of Mac OS X, this daemon starts and maintains various Internet-related services, including FTP and telnet. As an extended form of inetd, it offers enhanced security. It replaced inetd in Mac OS X v10.3, and subsequently launchd replaced it in Mac OS X v10.4. However, Apple has retained inetd for compatibility purposes.
References
- ^ Smith, Roderick W. (2001). "Networking". Linux Study Guide. Sybex Press. p. 365. ISBN 0-7821-2939-0.
- ^ Negus, C. (2002). "Running Network Services". Red hat Linux 8 Bible. Wiley Publishing Inc. p. 1007. ISBN 0-7645-4968-5.
External links
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