1 <?xml version="1.0" encoding="ISO-8859-1"?>
2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
3 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
5 This file is generated from xml source: DO NOT EDIT
6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
8 <title>Overview of new features in Apache 2.0 - Apache HTTP Server</title>
9 <link href="./style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
10 <link href="./style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
11 <link href="./style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
12 <link href="./images/favicon.ico" rel="shortcut icon" /></head>
13 <body id="manual-page"><div id="page-header">
14 <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>
15 <p class="apache">Apache HTTP Server Version 2.0</p>
16 <img alt="" src="./images/feather.gif" /></div>
17 <div class="up"><a href="./"><img title="<-" alt="<-" src="./images/left.gif" /></a></div>
19 <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">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>
21 <p><span>Available Languages: </span><a href="./de/new_features_2_0.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
22 <a href="./en/new_features_2_0.html" title="English"> en </a> |
23 <a href="./es/new_features_2_0.html" hreflang="es" rel="alternate" title="Español"> es </a> |
24 <a href="./fr/new_features_2_0.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
25 <a href="./ja/new_features_2_0.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
26 <a href="./ko/new_features_2_0.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
27 <a href="./ru/new_features_2_0.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> |
28 <a href="./tr/new_features_2_0.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
31 <p>This document describes some of the major changes between the
32 1.3 and 2.0 versions of the Apache HTTP Server.</p>
34 <div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#core">Core Enhancements</a></li>
35 <li><img alt="" src="./images/down.gif" /> <a href="#module">Module Enhancements</a></li>
36 </ul><h3>See also</h3><ul class="seealso"><li><a href="upgrading.html">Upgrading to 2.0 from 1.3</a></li></ul></div>
37 <div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
39 <h2><a name="core" id="core">Core Enhancements</a></h2>
43 <dt>Unix Threading</dt>
45 <dd>On Unix systems with POSIX threads support, Apache can
46 now run in a hybrid multiprocess, multithreaded mode. This
47 improves scalability for many, but not all configurations.</dd>
49 <dt>New Build System</dt>
51 <dd>The build system has been rewritten from scratch to be
52 based on <code>autoconf</code> and <code>libtool</code>.
53 This makes Apache's configuration system more similar to
54 that of other packages.</dd>
56 <dt>Multiprotocol Support</dt>
58 <dd>Apache now has some of the infrastructure in place to
59 support serving multiple protocols. <code class="module"><a href="./mod/mod_echo.html">mod_echo</a></code> has
60 been written as an example.</dd>
62 <dt>Better support for non-Unix
65 <dd>Apache 2.0 is faster and more stable on non-Unix
66 platforms such as BeOS, OS/2, and Windows. With the
67 introduction of platform-specific <a href="mpm.html">multi-processing modules</a> (MPMs) and the
68 Apache Portable Runtime (APR), these platforms are now
69 implemented in their native API, avoiding the often buggy and
70 poorly performing POSIX-emulation layers.</dd>
72 <dt>New Apache API</dt>
74 <dd>The API for modules has changed significantly for 2.0.
75 Many of the module-ordering/-priority problems from 1.3 should
76 be gone. 2.0 does much of this automatically, and module ordering
77 is now done per-hook to allow more flexibility. Also, new calls
78 have been added that provide additional module capabilities
79 without patching the core Apache server.</dd>
83 <dd>On systems where IPv6 is supported by the underlying
84 Apache Portable Runtime library, Apache gets IPv6 listening
85 sockets by default. Additionally, the <code class="directive"><a href="./mod/mpm_common.html#listen">Listen</a></code>, <code class="directive"><a href="./mod/core.html#namevirtualhost">NameVirtualHost</a></code>, and <code class="directive"><a href="./mod/core.html#virtualhost">VirtualHost</a></code> directives support
86 IPv6 numeric address strings (e.g., "<code>Listen
87 [2001:db8::1]:8080</code>").</dd>
91 <dd>Apache modules may now be written as filters which act on
92 the stream of content as it is delivered to or from the
93 server. This allows, for example, the output of CGI scripts to
94 be parsed for Server Side Include directives using the
95 <code>INCLUDES</code> filter in <code class="module"><a href="./mod/mod_include.html">mod_include</a></code>. The
96 module <code class="module"><a href="./mod/mod_ext_filter.html">mod_ext_filter</a></code> allows external programs to
97 act as filters in much the same way that CGI programs can act as
100 <dt>Multilanguage Error Responses</dt>
102 <dd>Error response messages to the browser are now provided in
103 several languages, using SSI documents. They may be customized
104 by the administrator to achieve a consistent look and feel.</dd>
106 <dt>Simplified configuration</dt>
108 <dd>Many confusing directives have been simplified. The often
109 confusing <code>Port</code> and <code>BindAddress</code> directives
110 are gone; only the <code class="directive"><a href="./mod/mpm_common.html#listen">Listen</a></code>
111 directive is used for IP address binding; the <code class="directive"><a href="./mod/core.html#servername">ServerName</a></code> directive specifies the
112 server name and port number only for redirection and vhost
115 <dt>Native Windows NT Unicode Support</dt>
117 <dd>Apache 2.0 on Windows NT now uses utf-8 for all filename
118 encodings. These directly translate to the underlying Unicode
119 file system, providing multilanguage support for all Windows
120 NT-based installations, including Windows 2000 and Windows XP.
121 <em>This support does not extend to Windows 95, 98 or ME, which
122 continue to use the machine's local codepage for filesystem
125 <dt>Regular Expression Library Updated</dt>
127 <dd>Apache 2.0 includes the <a href="http://www.pcre.org/">Perl
128 Compatible Regular Expression Library</a> (PCRE). All regular
129 expression evaluation now uses the more powerful Perl 5
133 </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
134 <div class="section">
135 <h2><a name="module" id="module">Module Enhancements</a></h2>
139 <dt><code class="module"><a href="./mod/mod_ssl.html">mod_ssl</a></code></dt>
141 <dd>New module in Apache 2.0. This module is an interface
142 to the SSL/TLS encryption protocols provided by
145 <dt><code class="module"><a href="./mod/mod_dav.html">mod_dav</a></code></dt>
147 <dd>New module in Apache 2.0. This module implements the HTTP
148 Distributed Authoring and Versioning (DAV) specification for
149 posting and maintaining web content.</dd>
151 <dt><code class="module"><a href="./mod/mod_deflate.html">mod_deflate</a></code></dt>
153 <dd>New module in Apache 2.0. This module allows supporting
154 browsers to request that content be compressed before delivery,
155 saving network bandwidth.</dd>
157 <dt><code class="module"><a href="./mod/mod_auth_ldap.html">mod_auth_ldap</a></code></dt>
159 <dd>New module in Apache 2.0.41. This module allows an LDAP
160 database to be used to store credentials for HTTP Basic
161 Authentication. A companion module, <code class="module"><a href="./mod/mod_ldap.html">mod_ldap</a></code>
162 provides connection pooling and results caching.</dd>
164 <dt><code class="module"><a href="./mod/mod_auth_digest.html">mod_auth_digest</a></code></dt>
166 <dd>Includes additional support for session caching across
167 processes using shared memory.</dd>
169 <dt><code class="module"><a href="./mod/mod_charset_lite.html">mod_charset_lite</a></code></dt>
171 <dd>New module in Apache 2.0. This experimental module allows
172 for character set translation or recoding.</dd>
174 <dt><code class="module"><a href="./mod/mod_file_cache.html">mod_file_cache</a></code></dt>
176 <dd>New module in Apache 2.0. This module includes the
177 functionality of <code>mod_mmap_static</code> in Apache 1.3,
178 plus adds further caching abilities.</dd>
180 <dt><code class="module"><a href="./mod/mod_headers.html">mod_headers</a></code></dt>
182 <dd>This module is much more flexible in Apache 2.0. It can now
183 modify request headers used by <code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code>, and
184 it can conditionally set response headers.</dd>
186 <dt><code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code></dt>
188 <dd>The proxy module has been completely rewritten to take
189 advantage of the new filter infrastructure and to implement a
190 more reliable, HTTP/1.1 compliant proxy. In addition, new
191 <code class="directive"><a href="./mod/mod_proxy.html#proxy"><Proxy></a></code>
192 configuration sections provide more readable (and internally
193 faster) control of proxied sites; overloaded <code><Directory
194 "proxy:..."></code> configuration are not supported. The module
195 is now divided into specific protocol support modules including
196 <code>proxy_connect</code>, <code>proxy_ftp</code> and
197 <code>proxy_http</code>.</dd>
199 <dt><code class="module"><a href="./mod/mod_negotiation.html">mod_negotiation</a></code></dt>
201 <dd>A new <code class="directive"><a href="./mod/mod_negotiation.html#forcelanguagepriority">ForceLanguagePriority</a></code> directive can be used to assure that
202 the client receives a single document in all cases, rather than
203 NOT ACCEPTABLE or MULTIPLE CHOICES responses. In addition, the
204 negotiation and MultiViews algorithms have been cleaned up to
205 provide more consistent results and a new form of type map that
206 can include document content is provided.</dd>
208 <dt><code class="module"><a href="./mod/mod_autoindex.html">mod_autoindex</a></code></dt>
210 <dd>Autoindex'ed directory listings can now be configured to
211 use HTML tables for cleaner formatting, and allow finer-grained
212 control of sorting, including version-sorting, and wildcard
213 filtering of the directory listing.</dd>
215 <dt><code class="module"><a href="./mod/mod_include.html">mod_include</a></code></dt>
217 <dd>New directives allow the default start and end tags for SSI elements
218 to be changed and allow for error and time format configuration
219 to take place in the main configuration file rather than in the
220 SSI document. Results from regular expression parsing and grouping
221 (now based on Perl's regular expression syntax) can be retrieved
222 using <code class="module"><a href="./mod/mod_include.html">mod_include</a></code>'s variables <code>$0</code>
223 .. <code>$9</code>.</dd>
225 <dt><code class="module"><a href="./mod/mod_auth_dbm.html">mod_auth_dbm</a></code></dt>
227 <dd>Now supports multiple types of DBM-like databases using the
228 <code class="directive"><a href="./mod/mod_auth_dbm.html#authdbmtype">AuthDBMType</a></code>
233 <div class="bottomlang">
234 <p><span>Available Languages: </span><a href="./de/new_features_2_0.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
235 <a href="./en/new_features_2_0.html" title="English"> en </a> |
236 <a href="./es/new_features_2_0.html" hreflang="es" rel="alternate" title="Español"> es </a> |
237 <a href="./fr/new_features_2_0.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
238 <a href="./ja/new_features_2_0.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
239 <a href="./ko/new_features_2_0.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
240 <a href="./ru/new_features_2_0.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> |
241 <a href="./tr/new_features_2_0.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
242 </div><div id="footer">
243 <p class="apache">Copyright 2009 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
244 <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>