Monthly Archives: March 2005

  • Authentication, Authorization, and Access Control

    Posted on March 10, 2005 by in Apache

    Apache has three distinct ways of dealing with the question of whether a particular request for a resource will result in that resource actually be returned. These criteria are called Authorization, Authentication, and Access control. Authentication is any process by which you verify that someone is who they claim they are. This usually involves a […]

    Comments Off on Authentication, Authorization, and Access Control Continue Reading...
  • Apache’s Handler Use

    Posted on March 10, 2005 by in Apache

    What is a Handler Related Modules mod_actions mod_asis mod_cgi mod_imap mod_info mod_include mod_mime mod_negotiation mod_status Related Directives Action AddHandler RemoveHandler SetHandler A “handler” is an internal Apache representation of the action to be performed when a file is called. Generally, files have implicit handlers, based on the file type. Normally, all files are simply served […]

    Comments Off on Apache’s Handler Use Continue Reading...
  • Environment Variables in Apache

    Posted on March 10, 2005 by in Apache

    The Apache HTTP Server provides a mechanism for storing information in named variables that are called environment variables. This information can be used to control various operations such as logging or access control. The variables are also used as a mechanism to communicate with external programs such as CGI scripts. This document discusses different ways […]

    Comments Off on Environment Variables in Apache Continue Reading...
  • Overview of the Apache EBCDIC Port

    Posted on March 10, 2005 by in Apache

    As of Version 1.3, the Apache HTTP Server includes a port to (non-ASCII) mainframe machines which use the EBCDIC character set as their native codeset. (Initially, that support covered only the Fujitsu-Siemens family of mainframes running the BS2000/OSD operating system, a mainframe OS which features a SVR4-derived POSIX subsystem. Later, the two IBM mainframe operating […]

    Comments Off on Overview of the Apache EBCDIC Port Continue Reading...
  • Overview of the Apache EBCDIC Port

    Posted on March 10, 2005 by in Apache

    As of Version 1.3, the Apache HTTP Server includes a port to (non-ASCII) mainframe machines which use the EBCDIC character set as their native codeset. (Initially, that support covered only the Fujitsu-Siemens family of mainframes running the BS2000/OSD operating system, a mainframe OS which features a SVR4-derived POSIX subsystem. Later, the two IBM mainframe operating […]

    Comments Off on Overview of the Apache EBCDIC Port Continue Reading...
  • Apache 1.3 Dynamic Shared Object (DSO) Support

    Posted on March 10, 2005 by in Apache

    Originally written by Ralf S. Engelschall <rse@apache.org>, April 1998 Background On modern Unix derivatives there exists a nifty mechanism usually called dynamic linking/loading of Dynamic Shared Objects (DSO) which provides a way to build a piece of program code in a special format for loading it at run-time into the address space of an executable […]

    Comments Off on Apache 1.3 Dynamic Shared Object (DSO) Support Continue Reading...
  • Issues Regarding DNS and Apache

    Posted on March 10, 2005 by in Apache

    This page could be summarized with the statement: don’t require Apache to use DNS for any parsing of the configuration files. If Apache has to use DNS to parse the configuration files then your server may be subject to reliability problems (it might not boot), or denial and theft of service attacks (including users able […]

    Comments Off on Issues Regarding DNS and Apache Continue Reading...
  • Custom error responses

    Posted on March 10, 2005 by in Apache

    Purpose Additional functionality. Allows webmasters to configure the response of Apache to some error or problem.Customizable responses can be defined to be activated in the event of a server detected error or problem. e.g. if a script crashes and produces a “500 Server Error” response, then this response can be replaced with either some friendlier […]

    Comments Off on Custom error responses Continue Reading...
  • Content Negotiation

    Posted on March 10, 2005 by in Apache

    Apache’s support for content negotiation has been updated to meet the HTTP/1.1 specification. It can choose the best representation of a resource based on the browser-supplied preferences for media type, languages, character set and encoding. It is also implements a couple of features to give more intelligent handling of requests from browsers which send incomplete […]

    Comments Off on Content Negotiation Continue Reading...
  • Setting which addresses and ports Apache uses

    Posted on March 10, 2005 by in Apache

    When Apache starts, it connects to some port and address on the local machine and waits for incoming requests. By default, it listens to all addresses on the machine, and to the port as specified by the Port directive in the server configuration. However, it can be told to listen to more the one port, […]

    Comments Off on Setting which addresses and ports Apache uses Continue Reading...