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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<title>New features with Apache 1.1</title>
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<h1 align="CENTER">Overview of new features</h1>
<h2>API Changes</h2>
A few changes to the Apache API were made for 1.1. It is
possible that some third-party modules will no longer work with
1.1, though we have made every effort to provide
backwards-compatibility. If you encounter a module that does
not work with 1.1, please <a
href="http://httpd.apache.org/bug_report.html">let us know</a>.
<h2>New Features with Apache 1.1</h2>
<p>New features with this release, as extensions of the Apache
functionality (see also more detailed <code>CHANGES</code> file
in the source directory.) Because the core code has changed so
significantly, there are certain liberties that earlier
versions of Apache (and the NCSA daemon) took that recent
Apache versions are pickier about - please check the <a
href="misc/compat_notes.html">compatibility notes</a> if you
have any problems.</p>
<hr />
<p>In addition to a number of bug fixes and internal
performance enhancements, <a
href="http://www.apache.org/dist/httpd/">Apache 1.1</a> has the
following specific new user features:</p>
<ul>
<li><strong><a href="keepalive.html">Support for Keep-Alive
Persistent Connections</a></strong><br />
Apache now has (optional) support for persistent
connections, as defined by the HTTP/1.1 draft. This protocol,
supported by a number of current HTTP servers and browsers
(including Netscape Navigator 2.0) has been shown to increase
speed of document transfer by up to 50% in certain
cases.</li>
<li><strong><a href="vhosts/">New non-IP
Intensive-VirtualHost Support</a></strong><br />
Apache's support for virtual hosts has been enhanced to be
able to use information sent by some new Web browsers to
determine the server being accessed, without requiring an
additional IP address for each host.</li>
<li><strong><a href="bind.html">Listen to Multiple Addresses
and Ports</a></strong><br />
Using the new <code>Listen</code> directive, Apache can
listen to more than one port and IP address, using the same
configuration set.</li>
<li><strong><a href="mod/mod_status.html">Status
Module</a></strong><br />
Apache now contains a module that gives the web-master
accurate, up-to-date information about the server's status
and its resource consumption. It also gives the current state
of each server process including the current URL being
processed. For an example, check out <a
href="http://www.apache.org/server-status">the status of the
www.apache.org server</a>.</li>
<li><strong><a href="mod/mod_info.html">Server Information
Module</a></strong> This module gives a plethora of
information about the other modules installed, their
directives, and their configurations. It is extremely helpful
in debugging configuration problems. For an example, check
out <a href="http://www.apache.org/server-info">information
about the www.apache.org server</a>.</li>
<li><strong><a href="mod/mod_proxy.html">Experimental Caching
Proxy Server</a></strong><br />
Apache can now act as an HTTP proxy server, allowing clients
behind firewalls to use the server to access the outside
world. In addition, it can cache documents it proxies,
speeding up access to frequently requested documents.</li>
<li><strong><a href="location.html">URL-based Access
Protection</a></strong><br />
In addition to access checking and authorization by filename
(with <code><a
href="mod/core.html#directory"><Directory></a></code>),
the new <code><Location></code> directive allows
protection by URL.</li>
<li><strong><a href="mod/mod_actions.html">Filetype-based
Script "Actions"</a></strong><br />
You can now run CGI scripts whenever a file of a certain
type is requested. This makes it much easier to execute
scripts that process files. In addition, you can use the new
<a href="mod/mod_actions.html#script">Script</a> directive to
enable scripts for files called with HTTP methods Apache does
not natively support.</li>
<li><strong><a href="handler.html">New "Handler"
Directives</a></strong><br />
The new <code>AddHandler</code> and <code>SetHandler</code>
directive allows "handlers" to be defined for filename
extensions or directories. These handlers, which can either
be built into Apache or added with the <a
href="mod/mod_actions.html">Action</a> directive, extend
Apache's range of usability, and almost entirely remove the
"magic" media types.</li>
<li><strong><a href="mod/mod_env.html">Customizable CGI
Environment Variables</a></strong><br />
New <code>PassEnv</code> and <code>SetEnv</code> directives
allow you to modify the environment variables passed to CGI
scripts.</li>
<li><strong><a href="mod/mod_cern_meta.html">CERN Metafile
Support</a></strong><br />
Now emulates the CERN httpd's support for metafiles
containing additional HTTP headers to be supplied with a
document.</li>
<li><strong><a href="mod/mod_imap.html">Improved Imagemap
Support</a></strong><br />
The internal imagemap handling code has been rewritten and
reorganized, adding new handling of default, base and
relative URLs, and support for creating non-graphical menus
for use with clients that do not support imagemaps.</li>
<li><strong><a href="mod/mod_userdir.html">Improved UserDir
Directive</a></strong><br />
Now supports the ability to point user's files (as specified
by URLs beginning with the "<code>~</code>" character) at
directories other than those specified by the Unix password
file.</li>
<li><strong>Minimal DNS Now Runtime Option</strong><br />
New <code>HostnameLookups</code> server configuration
directive can be used to turn <code>On</code> or
<code>Off</code> DNS lookups. This supersedes the
-DMINIMAL_DNS compile-time configuration option. This option
can be set per-directory.</li>
<li><strong>IdentityCheck Now Per-Directory
Option</strong><br />
The <code>IdentityCheck</code> directive, which controls the
use of ident to check the remote user name, can now be set
per directory. The ident support is also RFC
1413-compliant.</li>
<li><strong>Redirect Now Usable in <code>.htaccess</code>
Files</strong><br />
The <a
href="mod/mod_alias.html#redirect"><code>Redirect</code></a>
directive can now be used in <code>.htaccess</code> files
when the <code>FileInfo</code> directive has been set on.
This allows users to redirect parts of their directories
without requiring CGI scripts</li>
<li><strong>ErrorDocument Now Usable in
<code>.htaccess</code> Files</strong><br />
The <a
href="custom-error.html"><code>ErrorDocument</code></a>
directive can now be used in <code>.htaccess</code> files
when the <code>FileInfo</code> directive has been set on.
This allows users to have different error messages for
different sections of a site.</li>
<li><strong><code>ForceType</code> Directive</strong><br />
This new directive, in <code><Directory></code>
sections or .htaccess files, allows you to override the
filename extensions and force a single content type.
(<em>e.g.</em>, <code>ForceType
application/octet-stream</code>)</li>
<li><strong>File Owner Available to Included CGI
Scripts</strong><br />
Server-side includes that call CGI scripts will now set a
<code>USER_NAME</code> environment variable that contains the
owner of the file which included it.</li>
<li><strong>Improved Icons</strong><br />
Thanks to <a href="mailto:kevinh@eit.com">Kevin Hughes</a>,
Apache's nifty color GIF icons for directory listings have
been updated. In addition, the <a
href="../apache_pb.gif">Powered by Apache</a>
(<code>apache_pb.gif</code>) logo has been included.</li>
</ul>
<hr />
<h3>New Authentication Modules</h3>
<p><strong>Note:</strong> These modules are not compiled into
the server by default, as they require special support on the
host system. They must be enabled specifically in the
<code>Configuration</code> file.</p>
<ul>
<li><strong><a href="mod/mod_auth_anon.html">Anonymous HTTP
Logins</a></strong><br />
New options allow you to allow, using Basic HTTP
Authentication, anonymous logins, like those of FTP. This
allows you to collect email addresses of people accessing
your site.</li>
<li><strong><a href="mod/mod_digest.html">Support for Digest
Authentication</a></strong><br />
Apache now supports digest authentication using RSA MD5
encryption. When used with a supporting web browser, this
provides a more secure alternative to Basic
authentication.</li>
<li><strong><a href="mod/mod_auth_db.html">Support for Unix
DB Authentication</a></strong> -
<code>mod_auth_db.c</code><br />
In addition to <a href="mod/mod_auth_dbm.html">DBM</a>
support, Apache now contains optional support for Berkeley DB
databases.</li>
<li><strong>mSQL Database Authentication</strong> -
<code>mod_auth_msql.html</code><br />
Support for the use of mSQL databases for user
authentication via HTTP is now supported.</li>
</ul>
<hr />
<h3>OS/2 Support</h3>
<p>Apache now includes support for OS/2, thanks to <a
href="http://www.slink.com/ApacheOS2/">Softlink
Services</a>.</p>
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