/
new_features_2_0.html.en
245 lines (192 loc) · 13.6 KB
/
new_features_2_0.html.en
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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="./style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
<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 2.2</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/">Documentation</a> > <a href="./">Version 2.2</a></div><div id="page-content"><div id="preamble"><h1>Overview of new features in Apache 2.0</h1>
<div class="toplang">
<p><span>Available Languages: </span><a href="./de/new_features_2_0.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
<a href="./en/new_features_2_0.html" title="English"> en </a> |
<a href="./fr/new_features_2_0.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
<a href="./ja/new_features_2_0.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="./ko/new_features_2_0.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
<a href="./pt-br/new_features_2_0.html" hreflang="pt-br" rel="alternate" title="Português (Brasil)"> pt-br </a> |
<a href="./ru/new_features_2_0.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> |
<a href="./tr/new_features_2_0.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
</div>
<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 2.0 from 1.3</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>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>New Build System</dt>
<dd>The build system has been rewritten from scratch to be
based on <code>autoconf</code> and <code>libtool</code>.
This makes Apache's configuration system more similar to
that of other packages.</dd>
<dt>Multiprotocol Support</dt>
<dd>Apache now has some of the infrastructure in place to
support serving multiple protocols. <code class="module"><a href="./mod/mod_echo.html">mod_echo</a></code> has
been written as an example.</dd>
<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
introduction of platform-specific <a href="mpm.html">multi-processing modules</a> (MPMs) and the
Apache Portable Runtime (APR), these platforms are now
implemented in their native API, avoiding the often buggy and
poorly performing POSIX-emulation layers.</dd>
<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
be gone. 2.0 does much of this automatically, and module ordering
is now done per-hook to allow more flexibility. Also, new calls
have been added that provide additional module capabilities
without patching the core Apache server.</dd>
<dt>IPv6 Support</dt>
<dd>On systems where IPv6 is supported by the underlying
Apache Portable Runtime library, Apache gets IPv6 listening
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
IPv6 numeric address strings (e.g., "<code>Listen
[2001:db8::1]:8080</code>").</dd>
<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
<code>INCLUDES</code> 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>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>Simplified configuration</dt>
<dd>Many confusing directives have been simplified. The often
confusing <code>Port</code> and <code>BindAddress</code> directives
are gone; only the <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>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
file system, providing multilanguage support for all Windows
NT-based installations, including Windows 2000 and Windows XP.
<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><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><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><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><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><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 <code>mod_mmap_static</code> in Apache 1.3,
plus adds further caching abilities.</dd>
<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 <code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code>, and
it can conditionally set response headers.</dd>
<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
<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 <code><Directory
"proxy:..."></code> configuration are not supported. The module
is now divided into specific protocol support modules including
<code>proxy_connect</code>, <code>proxy_ftp</code> and
<code>proxy_http</code>.</dd>
<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
NOT ACCEPTABLE or MULTIPLE CHOICES responses. In addition, the
negotiation and MultiViews algorithms have been cleaned up to
provide more consistent results and a new form of type map that
can include document content is provided.</dd>
<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><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
to take place in the main configuration file rather than in the
SSI document. Results from regular expression parsing and grouping
(now based on Perl's regular expression syntax) can be retrieved
using <code class="module"><a href="./mod/mod_include.html">mod_include</a></code>'s variables <code>$0</code>
.. <code>$9</code>.</dd>
<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>
</dl>
</div></div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="./de/new_features_2_0.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
<a href="./en/new_features_2_0.html" title="English"> en </a> |
<a href="./fr/new_features_2_0.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
<a href="./ja/new_features_2_0.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="./ko/new_features_2_0.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
<a href="./pt-br/new_features_2_0.html" hreflang="pt-br" rel="alternate" title="Português (Brasil)"> pt-br </a> |
<a href="./ru/new_features_2_0.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> |
<a href="./tr/new_features_2_0.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
</div><div id="footer">
<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>
<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>