This file is generated from xml source: DO NOT EDIT
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--><title>Overview of new features in Apache 2.0 - Apache HTTP Server</title><link href="./style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /><link href="./style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /><link href="./images/favicon.ico" rel="shortcut icon" /></head><body id="manual-page"><div id="page-header"><p class="menu"><a href="./mod/">Modules</a> | <a href="./mod/directives.html">Directives</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">Glossary</a> | <a href="./sitemap.html">Sitemap</a></p><p class="apache">Apache HTTP Server Version 2.0</p><img alt="" src="./images/feather.gif" /></div><div class="up"><a href="./"><img title="<-" alt="<-" src="./images/left.gif" /></a></div><div id="path"><a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="./">Version 2.0</a></div><div id="page-content"><div id="preamble"><h1>Overview of new features in Apache 2.0</h1>
- <p>Enhancements:</p>
-</div><div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#core">Core Enhancements</a></li><li><img alt="" src="./images/down.gif" /> <a href="#module">Module Enhancements</a></li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div><div class="section"><h2><a name="core" id="core">Core Enhancements</a></h2>
+ <p>This document describes some of the major changes between the
+ 1.3 and 2.0 versions of the Apache HTTP Server.</p>
+</div><div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#core">Core Enhancements</a></li><li><img alt="" src="./images/down.gif" /> <a href="#module">Module Enhancements</a></li></ul><h3>See also</h3><ul class="seealso"><li><a href="upgrading.html">Upgrading to Apache 2.0</a></li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div><div class="section"><h2><a name="core" id="core">Core Enhancements</a></h2>
<dl>
- <dt><strong>Unix Threading</strong></dt>
+ <dt>Unix Threading</dt>
<dd>On Unix systems with POSIX threads support, Apache can
now run in a hybrid multiprocess, multithreaded mode. This
improves scalability for many, but not all configurations.</dd>
- <dt><strong>New Build System</strong></dt>
+ <dt>New Build System</dt>
<dd>The build system has been rewritten from scratch to be
based on autoconf and libtool. This makes Apache's
configuration system more similar to that of other
packages.</dd>
- <dt><strong>Multiprotocol Support</strong></dt>
+ <dt>Multiprotocol Support</dt>
<dd>Apache now has some of the infrastructure in place to
support serving multiple protocols. mod_echo has been written
as an example.</dd>
- <dt><strong>Better support for non-Unix
- platforms</strong></dt>
+ <dt>Better support for non-Unix
+ platforms</dt>
<dd>Apache 2.0 is faster and more stable on non-Unix
platforms such as BeOS, OS/2, and Windows. With the
implemented in their native API, avoiding the often buggy and
poorly performing POSIX-emulation layers.</dd>
- <dt><strong>New Apache API</strong></dt>
+ <dt>New Apache API</dt>
<dd>The API for modules has changed significantly for 2.0.
Many of the module-ordering/-priority problems from 1.3 should
have been added that provide additional module capabilities
without patching the core Apache server.</dd>
- <dt><strong>IPv6 Support</strong></dt>
+ <dt>IPv6 Support</dt>
<dd>On systems where IPv6 is supported by the underlying
Apache Portable Runtime library, Apache gets IPv6 listening
IPv6 numeric address strings (e.g., "Listen
[fe80::1]:8080").</dd>
- <dt><strong>Filtering</strong></dt>
+ <dt>Filtering</dt>
<dd>Apache modules may now be written as filters which act on
the stream of content as it is delivered to or from the
- server. This allows, for example, the output of CGI scripts
- to be parsed for Server Side Include directives using the
- INCLUDES filter in mod_include.</dd>
+ server. This allows, for example, the output of CGI scripts to
+ be parsed for Server Side Include directives using the INCLUDES
+ filter in <code class="module"><a href="./mod/mod_include.html">mod_include</a></code>. The module
+ <code class="module"><a href="./mod/mod_ext_filter.html">mod_ext_filter</a></code> allows external programs to act
+ as filters in much the same way that CGI programs can act as
+ handlers.</dd>
- <dt><strong>Multilanguage Error Responses</strong></dt>
+ <dt>Multilanguage Error Responses</dt>
<dd>Error response messages to the browser are now provided in
several languages, using SSI documents. They may be customized
by the administrator to achieve a consistent look and feel.</dd>
- <dt><strong>Simplified configuration</strong></dt>
+ <dt>Simplified configuration</dt>
<dd>Many confusing directives have been simplified. The often
confusing Port and BindAddress directives are gone; only the
- Listen directive is used for IP address binding; the
- ServerName directive specifies the server name and port number
- only for redirection and vhost recognition.</dd>
+ <code class="directive"><a href="./mod/mpm_common.html#listen">Listen</a></code> directive is
+ used for IP address binding; the <code class="directive"><a href="./mod/core.html#servername">ServerName</a></code> directive specifies the
+ server name and port number only for redirection and vhost
+ recognition.</dd>
- <dt><strong>Native Windows NT Unicode Support</strong></dt>
+ <dt>Native Windows NT Unicode Support</dt>
<dd>Apache 2.0 on Windows NT now uses utf-8 for all filename
encodings. These directly translate to the underlying Unicode
<em>This support does not extend to Windows 95, 98 or ME, which
continue to use the machine's local codepage for filesystem
access.</em></dd>
+
+ <dt>Regular Expression Library Updated</dt>
+
+ <dd>Apache 2.0 includes the <a href="http://www.pcre.org/">Perl
+ Compatible Regular Expression Library</a> (PCRE). All regular
+ expression evaluation now uses the more powerful Perl 5
+ syntax.</dd>
+
</dl>
</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div><div class="section"><h2><a name="module" id="module">Module Enhancements</a></h2>
<dl>
- <dt><strong>mod_ssl</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_ssl.html">mod_ssl</a></code></dt>
<dd>New module in Apache 2.0. This module is an interface
to the SSL/TLS encryption protocols provided by
OpenSSL.</dd>
- <dt><strong>mod_dav</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_dav.html">mod_dav</a></code></dt>
<dd>New module in Apache 2.0. This module implements the HTTP
Distributed Authoring and Versioning (DAV) specification for
posting and maintaining web content.</dd>
- <dt><strong>mod_auth_digest</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_deflate.html">mod_deflate</a></code></dt>
+
+ <dd>New module in Apache 2.0. This module allows supporting
+ browsers to request that content be compressed before delivery,
+ saving network bandwidth.</dd>
+
+ <dt><code class="module"><a href="./mod/mod_auth_ldap.html">mod_auth_ldap</a></code></dt>
+
+ <dd>New module in Apache 2.0.41. This module allows an LDAP
+ database to be used to store credentials for HTTP Basic
+ Authentication. A companion module, <code class="module"><a href="./mod/mod_ldap.html">mod_ldap</a></code>
+ provides connection pooling and results caching.</dd>
+
+ <dt><code class="module"><a href="./mod/mod_auth_digest.html">mod_auth_digest</a></code></dt>
<dd>Includes additional support for session caching across
processes using shared memory.</dd>
- <dt><strong>mod_charset_lite</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_charset_lite.html">mod_charset_lite</a></code></dt>
<dd>New module in Apache 2.0. This experimental module allows
for character set translation or recoding.</dd>
- <dt><strong>mod_file_cache</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_file_cache.html">mod_file_cache</a></code></dt>
<dd>New module in Apache 2.0. This module includes the
functionality of mod_mmap_static in Apache 1.3, plus adds
further caching abilities.</dd>
- <dt><strong>mod_headers</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_headers.html">mod_headers</a></code></dt>
- <dd>This module is much more flexible in Apache 2.0. It can
- now modify request headers used by mod_proxy, and it can
- conditionally set response headers.</dd>
+ <dd>This module is much more flexible in Apache 2.0. It can now
+ modify request headers used by <code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code>, and
+ it can conditionally set response headers.</dd>
- <dt><strong>mod_proxy</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code></dt>
- <dd>The proxy module has been completely rewritten to take advantage
- of the new filter infrastructure and to implement a more
- reliable, HTTP/1.1 compliant proxy. In addition, new
- <Proxy> configuration sections provide more readable
- (and internally faster) control of proxied sites; overloaded
- <Directory "proxy:..."> configuration are not supported. The
- module is now divided into specific protocol support modules
- including proxy_connect, proxy_ftp and proxy_http.</dd>
+ <dd>The proxy module has been completely rewritten to take
+ advantage of the new filter infrastructure and to implement a
+ more reliable, HTTP/1.1 compliant proxy. In addition, new
+ <code class="directive"><a href="./mod/mod_proxy.html#proxy"><Proxy></a></code>
+ configuration sections provide more readable (and internally
+ faster) control of proxied sites; overloaded <Directory
+ "proxy:..."> configuration are not supported. The module is
+ now divided into specific protocol support modules including
+ proxy_connect, proxy_ftp and proxy_http.</dd>
- <dt><strong>mod_negotiation</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_negotiation.html">mod_negotiation</a></code></dt>
<dd>A new <code class="directive"><a href="./mod/mod_negotiation.html#forcelanguagepriority">ForceLanguagePriority</a></code> directive can be used to assure that
the client receives a single document in all cases, rather than
provide more consistent results and a new form of type map that
can include document content is provided.</dd>
- <dt><strong>mod_autoindex</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_autoindex.html">mod_autoindex</a></code></dt>
<dd>Autoindex'ed directory listings can now be configured to
use HTML tables for cleaner formatting, and allow finer-grained
control of sorting, including version-sorting, and wildcard
filtering of the directory listing.</dd>
- <dt><strong>mod_include</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_include.html">mod_include</a></code></dt>
<dd>New directives allow the default start and end tags for SSI elements
to be changed and allow for error and time format configuration
(now based on Perl's regular expression syntax) can be retrieved
using mod_include's variables $0 .. $9.</dd>
- <dt><strong>mod_auth_dbm</strong></dt>
+ <dt><code class="module"><a href="./mod/mod_auth_dbm.html">mod_auth_dbm</a></code></dt>
<dd>Now supports multiple types of DBM-like databases using the
<code class="directive"><a href="./mod/mod_auth_dbm.html#authdbmtype">AuthDBMType</a></code>
directive.</dd>
- <dt><strong>mod_auth_db</strong></dt>
-
- <dd>Has been removed in favor of mod_auth_dbm with the AuthDBMType
- directive.</dd>
</dl>
</div></div><div id="footer"><p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</a></p><p class="menu"><a href="./mod/">Modules</a> | <a href="./mod/directives.html">Directives</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">Glossary</a> | <a href="./sitemap.html">Sitemap</a></p></div></body></html>
\ No newline at end of file
<title>Overview of new features in Apache 2.0</title>
<summary>
- <p>Enhancements:</p>
+ <p>This document describes some of the major changes between the
+ 1.3 and 2.0 versions of the Apache HTTP Server.</p>
</summary>
+<seealso><a href="upgrading.html">Upgrading to Apache 2.0</a></seealso>
+
<section id="core">
<title>Core Enhancements</title>
<dl>
- <dt><strong>Unix Threading</strong></dt>
+ <dt>Unix Threading</dt>
<dd>On Unix systems with POSIX threads support, Apache can
now run in a hybrid multiprocess, multithreaded mode. This
improves scalability for many, but not all configurations.</dd>
- <dt><strong>New Build System</strong></dt>
+ <dt>New Build System</dt>
<dd>The build system has been rewritten from scratch to be
based on autoconf and libtool. This makes Apache's
configuration system more similar to that of other
packages.</dd>
- <dt><strong>Multiprotocol Support</strong></dt>
+ <dt>Multiprotocol Support</dt>
<dd>Apache now has some of the infrastructure in place to
support serving multiple protocols. mod_echo has been written
as an example.</dd>
- <dt><strong>Better support for non-Unix
- platforms</strong></dt>
+ <dt>Better support for non-Unix
+ platforms</dt>
<dd>Apache 2.0 is faster and more stable on non-Unix
platforms such as BeOS, OS/2, and Windows. With the
implemented in their native API, avoiding the often buggy and
poorly performing POSIX-emulation layers.</dd>
- <dt><strong>New Apache API</strong></dt>
+ <dt>New Apache API</dt>
<dd>The API for modules has changed significantly for 2.0.
Many of the module-ordering/-priority problems from 1.3 should
have been added that provide additional module capabilities
without patching the core Apache server.</dd>
- <dt><strong>IPv6 Support</strong></dt>
+ <dt>IPv6 Support</dt>
<dd>On systems where IPv6 is supported by the underlying
Apache Portable Runtime library, Apache gets IPv6 listening
IPv6 numeric address strings (e.g., "Listen
[fe80::1]:8080").</dd>
- <dt><strong>Filtering</strong></dt>
+ <dt>Filtering</dt>
<dd>Apache modules may now be written as filters which act on
the stream of content as it is delivered to or from the
- server. This allows, for example, the output of CGI scripts
- to be parsed for Server Side Include directives using the
- INCLUDES filter in mod_include.</dd>
+ server. This allows, for example, the output of CGI scripts to
+ be parsed for Server Side Include directives using the INCLUDES
+ filter in <module>mod_include</module>. The module
+ <module>mod_ext_filter</module> allows external programs to act
+ as filters in much the same way that CGI programs can act as
+ handlers.</dd>
- <dt><strong>Multilanguage Error Responses</strong></dt>
+ <dt>Multilanguage Error Responses</dt>
<dd>Error response messages to the browser are now provided in
several languages, using SSI documents. They may be customized
by the administrator to achieve a consistent look and feel.</dd>
- <dt><strong>Simplified configuration</strong></dt>
+ <dt>Simplified configuration</dt>
<dd>Many confusing directives have been simplified. The often
confusing Port and BindAddress directives are gone; only the
- Listen directive is used for IP address binding; the
- ServerName directive specifies the server name and port number
- only for redirection and vhost recognition.</dd>
+ <directive module="mpm_common">Listen</directive> directive is
+ used for IP address binding; the <directive
+ module="core">ServerName</directive> directive specifies the
+ server name and port number only for redirection and vhost
+ recognition.</dd>
- <dt><strong>Native Windows NT Unicode Support</strong></dt>
+ <dt>Native Windows NT Unicode Support</dt>
<dd>Apache 2.0 on Windows NT now uses utf-8 for all filename
encodings. These directly translate to the underlying Unicode
<em>This support does not extend to Windows 95, 98 or ME, which
continue to use the machine's local codepage for filesystem
access.</em></dd>
+
+ <dt>Regular Expression Library Updated</dt>
+
+ <dd>Apache 2.0 includes the <a href="http://www.pcre.org/">Perl
+ Compatible Regular Expression Library</a> (PCRE). All regular
+ expression evaluation now uses the more powerful Perl 5
+ syntax.</dd>
+
</dl>
</section>
<title>Module Enhancements</title>
<dl>
- <dt><strong>mod_ssl</strong></dt>
+ <dt><module>mod_ssl</module></dt>
<dd>New module in Apache 2.0. This module is an interface
to the SSL/TLS encryption protocols provided by
OpenSSL.</dd>
- <dt><strong>mod_dav</strong></dt>
+ <dt><module>mod_dav</module></dt>
<dd>New module in Apache 2.0. This module implements the HTTP
Distributed Authoring and Versioning (DAV) specification for
posting and maintaining web content.</dd>
- <dt><strong>mod_auth_digest</strong></dt>
+ <dt><module>mod_deflate</module></dt>
+
+ <dd>New module in Apache 2.0. This module allows supporting
+ browsers to request that content be compressed before delivery,
+ saving network bandwidth.</dd>
+
+ <dt><module>mod_auth_ldap</module></dt>
+
+ <dd>New module in Apache 2.0.41. This module allows an LDAP
+ database to be used to store credentials for HTTP Basic
+ Authentication. A companion module, <module>mod_ldap</module>
+ provides connection pooling and results caching.</dd>
+
+ <dt><module>mod_auth_digest</module></dt>
<dd>Includes additional support for session caching across
processes using shared memory.</dd>
- <dt><strong>mod_charset_lite</strong></dt>
+ <dt><module>mod_charset_lite</module></dt>
<dd>New module in Apache 2.0. This experimental module allows
for character set translation or recoding.</dd>
- <dt><strong>mod_file_cache</strong></dt>
+ <dt><module>mod_file_cache</module></dt>
<dd>New module in Apache 2.0. This module includes the
functionality of mod_mmap_static in Apache 1.3, plus adds
further caching abilities.</dd>
- <dt><strong>mod_headers</strong></dt>
+ <dt><module>mod_headers</module></dt>
- <dd>This module is much more flexible in Apache 2.0. It can
- now modify request headers used by mod_proxy, and it can
- conditionally set response headers.</dd>
+ <dd>This module is much more flexible in Apache 2.0. It can now
+ modify request headers used by <module>mod_proxy</module>, and
+ it can conditionally set response headers.</dd>
- <dt><strong>mod_proxy</strong></dt>
+ <dt><module>mod_proxy</module></dt>
- <dd>The proxy module has been completely rewritten to take advantage
- of the new filter infrastructure and to implement a more
- reliable, HTTP/1.1 compliant proxy. In addition, new
- <Proxy> configuration sections provide more readable
- (and internally faster) control of proxied sites; overloaded
- <Directory "proxy:..."> configuration are not supported. The
- module is now divided into specific protocol support modules
- including proxy_connect, proxy_ftp and proxy_http.</dd>
+ <dd>The proxy module has been completely rewritten to take
+ advantage of the new filter infrastructure and to implement a
+ more reliable, HTTP/1.1 compliant proxy. In addition, new
+ <directive module="mod_proxy" type="section">Proxy</directive>
+ configuration sections provide more readable (and internally
+ faster) control of proxied sites; overloaded <Directory
+ "proxy:..."> configuration are not supported. The module is
+ now divided into specific protocol support modules including
+ proxy_connect, proxy_ftp and proxy_http.</dd>
- <dt><strong>mod_negotiation</strong></dt>
+ <dt><module>mod_negotiation</module></dt>
<dd>A new <directive module="mod_negotiation"
>ForceLanguagePriority</directive> directive can be used to assure that
provide more consistent results and a new form of type map that
can include document content is provided.</dd>
- <dt><strong>mod_autoindex</strong></dt>
+ <dt><module>mod_autoindex</module></dt>
<dd>Autoindex'ed directory listings can now be configured to
use HTML tables for cleaner formatting, and allow finer-grained
control of sorting, including version-sorting, and wildcard
filtering of the directory listing.</dd>
- <dt><strong>mod_include</strong></dt>
+ <dt><module>mod_include</module></dt>
<dd>New directives allow the default start and end tags for SSI elements
to be changed and allow for error and time format configuration
(now based on Perl's regular expression syntax) can be retrieved
using mod_include's variables $0 .. $9.</dd>
- <dt><strong>mod_auth_dbm</strong></dt>
+ <dt><module>mod_auth_dbm</module></dt>
<dd>Now supports multiple types of DBM-like databases using the
<directive module="mod_auth_dbm">AuthDBMType</directive>
directive.</dd>
- <dt><strong>mod_auth_db</strong></dt>
-
- <dd>Has been removed in favor of mod_auth_dbm with the AuthDBMType
- directive.</dd>
</dl>
</section>
</manualpage>
projects / apache / commitdiff