summaryrefslogtreecommitdiff
path: root/docs/manual/howto/auth.html.en
diff options
context:
space:
mode:
authorAndré Malo <nd@apache.org>2003-04-07 00:13:02 +0000
committerAndré Malo <nd@apache.org>2003-04-07 00:13:02 +0000
commit09c1600f15a44efc3374f20e317df467700731ef (patch)
tree4732ca0b1b40fa3fc76b29b822bfc91d42e3b7ab /docs/manual/howto/auth.html.en
parente5123950bf65f1e4067937351f5a120fa10b5c88 (diff)
downloadhttpd-09c1600f15a44efc3374f20e317df467700731ef.tar.gz
new XML for howto/auth
I changed the references to the auth modules, so that they're matching the new model, but it probably needs a rewrite anyway. git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@99288 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'docs/manual/howto/auth.html.en')
-rw-r--r--docs/manual/howto/auth.html.en413
1 files changed, 188 insertions, 225 deletions
diff --git a/docs/manual/howto/auth.html.en b/docs/manual/howto/auth.html.en
index 6bc6fc99cc..c7d3fddc5d 100644
--- a/docs/manual/howto/auth.html.en
+++ b/docs/manual/howto/auth.html.en
@@ -1,78 +1,45 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
- "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-
-<html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta name="generator" content="HTML Tidy, see www.w3.org" />
-
- <title>Authentication</title>
- <link rev="made" href="mailto:rbowen@rcbowen.com" />
- </head>
- <!-- Background white, links blue (unvisited), navy (visited), red (active) -->
-
- <body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
- vlink="#000080" alink="#FF0000">
- <!--#include virtual="header.html" -->
-
- <h1 align="center">Authentication</h1>
- <a id="__index__" name="__index__"></a> <!-- INDEX BEGIN -->
-
-
- <ul>
- <li><a href="#introduction">Introduction</a></li>
-
- <li><a href="#theprerequisites">The prerequisites</a></li>
-
- <li><a href="#gettingitworking">Getting it working</a></li>
-
- <li><a href="#lettingmorethanonepersonin">Letting more
- than one person in</a></li>
-
- <li><a href="#possibleproblems">Possible problems</a></li>
-
- <li><a href="#whatotherneatstuffcanido">What other neat
- stuff can I do?</a></li>
-
- <li><a href="#moreinformation">More information</a></li>
- </ul>
- <!-- INDEX END -->
- <hr />
-
- <table border="1">
- <tr>
- <td valign="top"><strong>Related Modules</strong><br />
- <br />
- <a href="../mod/mod_auth.html">mod_auth</a><br />
- <a href="../mod/mod_access.html">mod_access</a><br />
- </td>
-
- <td valign="top"><strong>Related Directives</strong><br />
- <br />
- <a href="../mod/mod_access.html#allow">Allow</a><br />
- <a
- href="../mod/mod_auth.html#authgroupfile">AuthGroupFile</a><br />
- <a href="../mod/core.html#authname">AuthName</a><br />
- <a href="../mod/core.html#authtype">AuthType</a><br />
- <a
- href="../mod/mod_auth.html#authuserfile">AuthUserFile</a><br />
- <a href="../mod/mod_access.html#deny">Deny</a><br />
- <a href="../mod/core.html#options">Options</a><br />
- <a href="../mod/core.html#require">Require</a><br />
- </td>
- </tr>
- </table>
-
- <h1><a id="authentication"
- name="authentication">Authentication</a></h1>
-
+<?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>Authentication, Authorization and Access Control - 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 2.1</p>
+<img alt="" src="../images/feather.gif" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs-project/">Documentation</a> &gt; <a href="../">Version 2.1</a> &gt; <a href="./">How-To / Tutorials</a></div><div id="page-content"><div id="preamble"><h1>Authentication, Authorization and Access Control</h1>
<p>Authentication is any process by which you verify that
someone is who they claim they are. Authorization is any
process by which someone is allowed to be where they want to
go, or to have information that they want to have.</p>
-
- <h2><a id="introduction"
- name="introduction">Introduction</a></h2>
-
+</div>
+<div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#related">Related Modules and Directives</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#introduction">Introduction</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#theprerequisites">The Prerequisites</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#gettingitworking">Getting it working</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#lettingmorethanonepersonin">Letting more than one
+person in</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#possibleproblems">Possible problems</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#whatotherneatstuffcanido">What other neat stuff can I
+do?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#moreinformation">More information</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="related" id="related">Related Modules and Directives</a></h2>
+ <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code></li><li><code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code></li><li><code class="module"><a href="../mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code></li><li><code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_authz_host.html#allow">Allow</a></code></li><li><code class="directive"><a href="../mod/mod_authz_groupfile.html#authgroupfile">AuthGroupFile</a></code></li><li><code class="directive"><a href="../mod/core.html#authname">AuthName</a></code></li><li><code class="directive"><a href="../mod/core.html#authtype">AuthType</a></code></li><li><code class="directive"><a href="../mod/mod_authn_file.html#authuserfile">AuthUserFile</a></code></li><li><code class="directive"><a href="../mod/mod_authz_file.html#deny">Deny</a></code></li><li><code class="directive"><a href="../mod/core.html#options">Options</a></code></li><li><code class="directive"><a href="../mod/core.html#require">Require</a></code></li></ul></td></tr></table>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="introduction" id="introduction">Introduction</a></h2>
<p>If you have information on your web site that is sensitive
or intended for only a small group of people, the techniques in
this article will help you make sure that the people that see
@@ -80,28 +47,28 @@
<p>This article covers the "standard" way of protecting parts
of your web site that most of you are going to use.</p>
-
- <h2><a id="theprerequisites" name="theprerequisites">The
- prerequisites</a></h2>
-
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="theprerequisites" id="theprerequisites">The Prerequisites</a></h2>
<p>The directives discussed in this article will need to go
either in your main server configuration file (typically in a
- &lt;Directory&gt; section), or in per-directory configuration
- files (<code>.htaccess</code> files).</p>
+ <code class="directive"><a href="../mod/core.html#directory">&lt;Directory&gt;</a></code> section), or
+ in per-directory configuration files (<code>.htaccess</code> files).</p>
<p>If you plan to use <code>.htaccess</code> files, you will
need to have a server configuration that permits putting
authentication directives in these files. This is done with the
- <code><a
- href="../mod/core.html#allowoverride">AllowOverride</a></code>
- directive, which specifies which directives, if any, may be put
- in per-directory configuration files.</p>
+ <code class="directive"><a href="../mod/core.html#allowoverride">AllowOverride</a></code> directive, which
+ specifies which directives, if any, may be put in per-directory
+ configuration files.</p>
<p>Since we're talking here about authentication, you will need
- an <code>AllowOverride</code> directive like the following:</p>
-<pre>
- AllowOverride AuthConfig
-</pre>
+ an <code class="directive"><a href="../mod/core.html#allowoverride">AllowOverride</a></code> directive like the
+ following:</p>
+
+ <div class="example"><p><code>
+ AllowOverride AuthConfig
+ </code></p></div>
<p>Or, if you are just going to put the directives directly in
your main server configuration file, you will of course need to
@@ -111,36 +78,36 @@
structure of your server, in order to know where some files are
kept. This should not be terribly difficult, and I'll try to
make this clear when we come to that point.</p>
-
- <h2><a id="gettingitworking"
- name="gettingitworking">Getting it working</a></h2>
-
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="gettingitworking" id="gettingitworking">Getting it working</a></h2>
<p>Here's the basics of password protecting a directory on your
server.</p>
<p>You'll need to create a password file. This file should be
placed somewhere not accessible from the web. This is so that
folks cannot download the password file. For example, if your
- documents are served out of
- <code>/usr/local/apache/htdocs</code> you might want to put the
- password file(s) in <code>/usr/local/apache/passwd</code>.</p>
+ documents are served out of <code>/usr/local/apache/htdocs</code> you
+ might want to put the password file(s) in
+ <code>/usr/local/apache/passwd</code>.</p>
- <p>To create the file, use the <a
- href="../programs/htpasswd.html">htpasswd</a> utility that came
+ <p>To create the file, use the <a href="../programs/htpasswd.html">htpasswd</a> utility that came
with Apache. This be located in the <code>bin</code> directory
of wherever you installed Apache. To create the file, type:</p>
-<pre>
- htpasswd -c /usr/local/apache/passwd/passwords rbowen
-</pre>
+
+ <div class="example"><p><code>
+ htpasswd -c /usr/local/apache/passwd/passwords rbowen
+ </code></p></div>
<p><code>htpasswd</code> will ask you for the password, and
then ask you to type it again to confirm it:</p>
-<pre>
- # htpasswd -c /usr/local/apache/passwd/passwords rbowen
- New password: mypassword
- Re-type new password: mypassword
- Adding password for user rbowen
-</pre>
+
+ <div class="example"><p><code>
+ # htpasswd -c /usr/local/apache/passwd/passwords rbowen<br />
+ New password: mypassword<br />
+ Re-type new password: mypassword<br />
+ Adding password for user rbowen
+ </code></p></div>
<p>If <code>htpasswd</code> is not in your path, of course
you'll have to type the full path to the file to get it to run.
@@ -155,36 +122,34 @@
<code>/usr/local/apache/htdocs/secret</code>, you can use the
following directives, either placed in the file
<code>/usr/local/apache/htdocs/secret/.htaccess</code>, or
- placed in httpd.conf inside a &lt;Directory
+ placed in <code>httpd.conf</code> inside a &lt;Directory
/usr/local/apache/apache/htdocs/secret&gt; section.</p>
-<pre>
- AuthType Basic
- AuthName "Restricted Files"
- AuthUserFile /usr/local/apache/passwd/passwords
- require user rbowen
-</pre>
-
- <p>Let's examine each of those directives individually. The <a
- href="../mod/core.html#authtype">AuthType</a> directive selects
+
+ <div class="example"><p><code>
+ AuthType Basic<br />
+ AuthName "Restricted Files"<br />
+ AuthUserFile /usr/local/apache/passwd/passwords<br />
+ Require user rbowen
+ </code></p></div>
+
+ <p>Let's examine each of those directives individually. The <code class="directive"><a href="../mod/core.html#authtype">AuthType</a></code> directive selects
that method that is used to authenticate the user. The most
common method is <code>Basic</code>, and this is the method
- implemented by <a href="../mod/mod_auth.html">mod_auth</a>. It
- is important to be aware, however, that Basic authentication
- sends the password from the client to the browser unencrypted.
- This method should therefore not be used for highly sensitive
- data. Apache supports one other authentication method:
- <code>AuthType Digest</code>. This method is implemented by <a
- href="../mod/mod_auth_digest.html">mod_auth_digest</a> and is
- much more secure. Only the most recent versions of clients are
- known to support Digest authentication.</p>
-
- <p>The <a href="../mod/core.html#authname">AuthName</a>
- directive sets the <em>Realm</em> to be used in the
- authentication. The realm serves two major functions. First,
- the client often presents this information to the user as part
- of the password dialog box. Second, it is used by the client to
- determine what password to send for a given authenticated area.
- So, for example, once a client has authenticated in the
+ implemented by <code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code>. It is important to be aware,
+ however, that Basic authentication sends the password from the client to
+ the browser unencrypted. This method should therefore not be used for
+ highly sensitive data. Apache supports one other authentication method:
+ <code>AuthType Digest</code>. This method is implemented by <code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code> and is much more secure. Only the most recent
+ versions of clients are known to support Digest authentication.</p>
+
+ <p>The <code class="directive"><a href="../mod/core.html#authname">AuthName</a></code> directive sets
+ the <dfn>Realm</dfn> to be used in the authentication. The realm serves
+ two major functions. First, the client often presents this information to
+ the user as part of the password dialog box. Second, it is used by the
+ client to determine what password to send for a given authenticated
+ area.</p>
+
+ <p>So, for example, once a client has authenticated in the
<code>"Restricted Files"</code> area, it will automatically
retry the same password for any area on the same server that is
marked with the <code>"Restricted Files"</code> Realm.
@@ -194,58 +159,51 @@
will always need to ask again for the password whenever the
hostname of the server changes.</p>
- <p>The <a
- href="../mod/mod_auth.html#authuserfile">AuthUserFile</a>
+ <p>The <code class="directive"><a href="../mod/mod_authn_file.html#authuserfile">AuthUserFile</a></code>
directive sets the path to the password file that we just
created with <code>htpasswd</code>. If you have a large number
of users, it can be quite slow to search through a plain text
file to authenticate the user on each request. Apache also has
the ability to store user information in fast database files.
- The <a href="../mod/mod_auth_dbm.html">mod_auth_dbm</a> module
- provides the <a
- href="../mod/mod_auth_dbm.html#authdbmuserfile">AuthDBMUserFile</a>
- directive. These files can be created and
- manipulated with the <a
- href="../programs/dbmmanage.html">dbmmanage</a> program. Many
+ The <code class="module"><a href="../mod/mod_authn_dbm.html">mod_authn_dbm</a></code> module provides the <code class="directive"><a href="../mod/mod_authn_dbm.html#authdbmuserfile">AuthDBMUserFile</a></code> directive. These
+ files can be created and manipulated with the <a href="../programs/dbmmanage.html">dbmmanage</a> program. Many
other types of authentication options are available from third
- party modules in the <a
- href="http://modules.apache.org/">Apache Modules
+ party modules in the <a href="http://modules.apache.org/">Apache Modules
Database</a>.</p>
- <p>Finally, the <a href="../mod/core.html#require">require</a>
+ <p>Finally, the <code class="directive"><a href="../mod/core.html#require">Require</a></code>
directive provides the authorization part of the process by
setting the user that is allowed to access this region of the
server. In the next section, we discuss various ways to use the
- <code>require</code> directive.</p>
-
- <h2><a id="lettingmorethanonepersonin"
- name="lettingmorethanonepersonin">Letting more than one
- person in</a></h2>
-
+ <code class="directive"><a href="../mod/core.html#require">Require</a></code> directive.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="lettingmorethanonepersonin" id="lettingmorethanonepersonin">Letting more than one
+person in</a></h2>
<p>The directives above only let one person (specifically
someone with a username of <code>rbowen</code>) into the
directory. In most cases, you'll want to let more than one
- person in. This is where the <a
- href="../mod/mod_auth.html#authgroupfile">AuthGroupFile</a>
- comes in.</p>
+ person in. This is where the <code class="directive"><a href="../mod/mod_authz_groupfile.html#authgroupfile">AuthGroupFile</a></code> comes in.</p>
<p>If you want to let more than one person in, you'll need to
create a group file that associates group names with a list of
users in that group. The format of this file is pretty simple,
and you can create it with your favorite editor. The contents
of the file will look like this:</p>
-<pre>
- GroupName: rbowen dpitts sungo rshersey
-</pre>
+
+ <div class="example"><p><code>
+ GroupName: rbowen dpitts sungo rshersey
+ </code></p></div>
<p>That's just a list of the members of the group in a long
line separated by spaces.</p>
<p>To add a user to your already existing password file,
type:</p>
-<pre>
- htpasswd /usr/local/apache/passwd/password dpitts
-</pre>
+
+ <div class="example"><p><code>
+ htpasswd /usr/local/apache/passwd/password dpitts
+ </code></p></div>
<p>You'll get the same response as before, but it will be
appended to the existing file, rather than creating a new file.
@@ -254,39 +212,39 @@
<p>Now, you need to modify your <code>.htaccess</code> file to
look like the following:</p>
-<pre>
- AuthType Basic
- AuthName "By Invitation Only"
- AuthUserFile /usr/local/apache/passwd/passwords
- AuthGroupFile /usr/local/apache/passwd/groups
- require group GroupName
-</pre>
-
- <p>Now, anyone that is listed in the group
- <code>GroupName</code>, and has an entry in the
- <code>password</code> file, will be let in, if they type the
- correct password.</p>
+
+ <div class="example"><p><code>
+ AuthType Basic<br />
+ AuthName "By Invitation Only"<br />
+ AuthUserFile /usr/local/apache/passwd/passwords<br />
+ AuthGroupFile /usr/local/apache/passwd/groups<br />
+ Require group GroupName
+ </code></p></div>
+
+ <p>Now, anyone that is listed in the group <code>GroupName</code>,
+ and has an entry in the <code>password</code> file, will be let in, if
+ they type the correct password.</p>
<p>There's another way to let multiple users in that is less
specific. Rather than creating a group file, you can just use
the following directive:</p>
-<pre>
- require valid-user
-</pre>
- <p>Using that rather than the <code>require user rbowen</code>
+ <div class="example"><p><code>
+ Require valid-user
+ </code></p></div>
+
+ <p>Using that rather than the <code>Require user rbowen</code>
line will allow anyone in that is listed in the password file,
and who correctly enters their password. You can even emulate
the group behavior here, by just keeping a separate password
file for each group. The advantage of this approach is that
Apache only has to check one file, rather than two. The
disadvantage is that you have to maintain a bunch of password
- files, and remember to reference th right one in the
- <code>AuthUserFile</code> directive.</p>
-
- <h2><a id="possibleproblems" name="possibleproblems">Possible
- problems</a></h2>
-
+ files, and remember to reference the right one in the
+ <code class="directive"><a href="../mod/mod_authn_file.html#authuserfile">AuthUserFile</a></code> directive.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="possibleproblems" id="possibleproblems">Possible problems</a></h2>
<p>Because of the way that Basic authentication is specified,
your username and password must be verified every time you
request a document from the server. This is even if you're
@@ -304,28 +262,30 @@
server machine, but you can expect to see slowdowns once you
get above a few hundred entries, and may wish to consider a
different authentication method at that time.</p>
-
- <h2><a id="whatotherneatstuffcanido"
- name="whatotherneatstuffcanido">What other neat stuff can
- I do?</a></h2>
-
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="whatotherneatstuffcanido" id="whatotherneatstuffcanido">What other neat stuff can I
+do?</a></h2>
<p>Authentication by username and password is only part of the
story. Frequently you want to let people in based on something
other than who they are. Something such as where they are
coming from.</p>
- <p>The <code>allow</code> and <code>deny</code> directives let
+ <p>The <code class="directive"><a href="../mod/mod_authz_host.html#allow">Allow</a></code> and
+ <code class="directive"><a href="../mod/mod_authz_host.html#deny">Deny</a></code> directives let
you allow and deny access based on the host name, or host
address, of the machine requesting a document. The
- <code>order</code> directive goes hand-in-hand with these two,
- and tells Apache in which order to apply the filters.</p>
+ <code class="directive"><a href="../mod/mod_authz_host.html#order">Order</a></code> directive goes
+ hand-in-hand with these two, and tells Apache in which order to
+ apply the filters.</p>
<p>The usage of these directives is:</p>
-<pre>
- allow from address
-</pre>
- <p>where <em>address</em> is an IP address (or a partial IP
+ <div class="example"><p><code>
+ Allow from <var>address</var>
+ </code></p></div>
+
+ <p>where <var>address</var> is an IP address (or a partial IP
address) or a fully qualified domain name (or a partial domain
name); you may provide multiple addresses or domain names, if
desired.</p>
@@ -333,47 +293,50 @@
<p>For example, if you have someone spamming your message
board, and you want to keep them out, you could do the
following:</p>
-<pre>
- deny from 205.252.46.165
-</pre>
+
+ <div class="example"><p><code>
+ Deny from 205.252.46.165
+ </code></p></div>
<p>Visitors coming from that address will not be able to see
the content covered by this directive. If, instead, you have a
machine name, rather than an IP address, you can use that.</p>
-<pre>
- deny from host.example.com
-</pre>
+
+ <div class="example"><p><code>
+ Deny from <var>host.example.com</var>
+ </code></p></div>
<p>And, if you'd like to block access from an entire domain,
you can specify just part of an address or domain name:</p>
-<pre>
- deny from 192.101.205
- deny from cyberthugs.com moreidiots.com
- deny from ke
-</pre>
-
- <p>Using <code>order</code> will let you be sure that you are
- actually restricting things to the group that you want to let
- in, by combining a <code>deny</code> and an <code>allow</code>
- directive:</p>
-<pre>
- order deny,allow
- deny from all
- allow from dev.example.com
-</pre>
-
- <p>Listing just the <code>allow</code> directive would not do
- what you want, because it will let folks from that host in, in
- addition to letting everyone in. What you want is to let
- <em>only</em> those folks in.</p>
- <h2><a id="moreinformation" name="moreinformation">More
- information</a></h2>
-
- <p>You should also read the documentation for <code><a
- href="../mod/mod_auth.html">mod_auth</a></code> and <code><a
- href="../mod/mod_access.html">mod_access</a></code> which
+ <div class="example"><p><code>
+ Deny from <var>192.101.205</var><br />
+ Deny from <var>cyberthugs.com</var> <var>moreidiots.com</var><br />
+ Deny from ke
+ </code></p></div>
+
+ <p>Using <code class="directive"><a href="../mod/mod_authz_host.html#order">Order</a></code> will let you
+ be sure that you are actually restricting things to the group that you want
+ to let in, by combining a <code class="directive"><a href="../mod/mod_authz_host.html#deny">Deny</a></code> and an <code class="directive"><a href="../mod/mod_authz_host.html#allow">Allow</a></code> directive:</p>
+
+ <div class="example"><p><code>
+ Order deny,allow<br />
+ Deny from all<br />
+ Allow from <var>dev.example.com</var>
+ </code></p></div>
+
+ <p>Listing just the <code class="directive"><a href="../mod/mod_authz_host.html#allow">Allow</a></code>
+ directive would not do what you want, because it will let folks from that
+ host in, in addition to letting everyone in. What you want is to let
+ <em>only</em> those folks in.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="moreinformation" id="moreinformation">More information</a></h2>
+ <p>You should also read the documentation for
+ <code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code> and <code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code> which
contain some more information about how this all works.</p>
- </body>
-</html>
-
+</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