Understanding Internet Information Services - Part 2
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by Uday Denduluri
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Services of IIS 6.0

Let us discuss some of the services of IIS 6.0 in detail.


1.    World Wide Web Publishing Service (WWW Service) – This is the core service of IIS. This hosts internet and intranet, connects to all the clients though HTTP requests. It uses and configures the HTTP protocol Stack and worker process for the same. We will look into HTTP protocol stack (also called HTTP.sys) and worker process in detail in the next section. It also monitors the health of the worker process. We will also see how we can configure it.

2.    IIS Admin service – This is used to managed the metabase of IIS. The IIS metabase is the configuration file for the IIS. As expected it is a plain text or in XML format. It is like a .net configuration files which can be opened by any plain text editor.

3.    FTP service – The IIS FTP service is an implementation of the File Transfer Protocol RFC 959, and File Transfer Protocol (FTP). The FTP service provides the feature called as FTP user isolation. Using this new concept, when a user uploads or downloads a file he would be given access only to his own directory. This prevents users from viewing or overwriting other user’s contents.

4.    NNTP service – Network News Transfer Protocol (NNTP) service provides the distributed network news messages on the NNTP servers and to NNTP clients (news readers) on the Internet.

5.    The SMTP service – The SMTP service in IIS processes messages by using the Simple Mail Transfer Protocol (SMTP). This uses the TCP/IP protocol receiving and sending the messages from one computer to another on a network.

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User Comments

Title: IIS   
Date: 2010-11-09 6:39:51 AM
Hi Uday ,
It was nice article,i just needed basic understanding over IIS that u explained well enough.
Title: IIS   
Date: 2009-09-20 1:56:52 PM
Hi Uday,

i have go through ur article as u have requested. The article is quite good but not perfect its looks like an article by novice be some technical it is totally incomplete missing some major issues like inetinfo, ddlhost, w3wp etc flow is not complete. it should beeeeee...if u want to contact me, mail me in makftp[at]gmail[dot]com

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