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| <title>Apache Server Frequently Asked Questions</title> |
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| <h1 align="CENTER">Apache Server Frequently Asked |
| Questions</h1> |
| |
| <p>$Revision: 1.18 $ ($Date: 2004/05/13 13:11:38 $)</p> |
| |
| <p>The latest version of this FAQ is always available from the |
| main Apache web site, at <<a |
| href="http://httpd.apache.org/docs/misc/FAQ.html" |
| rel="Help"><samp>http://httpd.apache.org/docs/misc/FAQ.html</samp></a>>.</p> |
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| <p>If you are reading a text-only version of this FAQ, you may |
| find numbers enclosed in brackets (such as "[12]"). These refer |
| to the list of reference URLs to be found at the end of the |
| document. These references do not appear, and are not needed, |
| for the hypertext version.</p> |
| |
| <h2>The Questions</h2> |
| |
| <ol type="A"> |
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| |
| <li value="9"> |
| <strong>Features</strong> |
| |
| <ol> |
| <li><a href="#proxy">Does or will Apache act as a Proxy |
| server?</a></li> |
| |
| <li><a href="#multiviews">What are "multiviews"?</a></li> |
| |
| <li><a href="#putsupport">Why can't I publish to my |
| Apache server using PUT on Netscape Gold and other |
| programs?</a></li> |
| |
| <li><a href="#SSL-i">Why doesn't Apache include |
| SSL?</a></li> |
| |
| <li><a href="#footer">How can I attach a footer to my |
| documents without using SSI?</a></li> |
| |
| <li><a href="#search">Does Apache include a search |
| engine?</a></li> |
| |
| <li><a href="#rotate">How can I rotate my log |
| files?</a></li> |
| |
| <li><a href="#conditional-logging">How do I keep certain |
| requests from appearing in my logs?</a></li> |
| |
| <li><a href="#dbinteg">Does Apache include any sort of |
| database integration?</a></li> |
| |
| <li><a href="#asp">Can I use Active Server Pages (ASP) |
| with Apache?</a></li> |
| |
| <li><a href="#java">Does Apache come with Java |
| support?</a></li> |
| </ol> |
| </li> |
| <!--#endif --> |
| <!--#if expr="$STANDALONE" --> |
| </ol> |
| <hr /> |
| |
| <h2>The Answers</h2> |
| <!--#endif --> |
| <!--#if expr="! $TOC" --> |
| |
| <h3>I. Features</h3> |
| |
| <ol> |
| <li> |
| <a id="proxy" name="proxy"><strong>Does or will Apache act |
| as a Proxy server?</strong></a> |
| |
| <p>Apache version 1.1 and above comes with a <a |
| href="../mod/mod_proxy.html">proxy module</a>. If compiled |
| in, this will make Apache act as a caching-proxy |
| server.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="multiviews" name="multiviews"><strong>What are |
| "multiviews"?</strong></a> |
| |
| <p>"Multiviews" is the general name given to the Apache |
| server's ability to provide language-specific document |
| variants in response to a request. This is documented quite |
| thoroughly in the <a href="../content-negotiation.html" |
| rel="Help">content negotiation</a> description page. In |
| addition, <cite>Apache Week</cite> carried an article on |
| this subject entitled "<a |
| href="http://www.apacheweek.com/features/negotiation" |
| rel="Help"><cite>Content Negotiation |
| Explained</cite></a>".</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="putsupport" name="putsupport"><strong>Why can't I |
| publish to my Apache server using PUT on Netscape Gold and |
| other programs?</strong></a> |
| |
| <p>Because you need to install and configure a script to |
| handle the uploaded files. This script is often called a |
| "PUT" handler. There are several available, but they may |
| have security problems. Using FTP uploads may be easier and |
| more secure, at least for now. For more information, see |
| the <cite>Apache Week</cite> article <a |
| href="http://www.apacheweek.com/features/put"><cite>Publishing |
| Pages with PUT</cite></a>.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="SSL-i" name="SSL-i"><strong>Why doesn't Apache |
| include SSL?</strong></a> |
| |
| <p>SSL (Secure Socket Layer) data transport requires |
| encryption, and many governments have restrictions upon the |
| import, export, and use of encryption technology. If Apache |
| included SSL in the base package, its distribution would |
| involve all sorts of legal and bureaucratic issues, and it |
| would no longer be freely available. Also, some of the |
| technology required to talk to current clients using SSL is |
| patented by <a href="http://www.rsa.com/">RSA Data |
| Security</a>, who restricts its use without a license.</p> |
| |
| <p>Some SSL implementations of Apache are available, |
| however; see the "<a |
| href="http://httpd.apache.org/related_projects.html">related |
| projects</a>" page at the main Apache web site.</p> |
| |
| <p>You can find out more about this topic in the |
| <cite>Apache Week</cite> article about <a |
| href="http://www.apacheweek.com/features/ssl" |
| rel="Help"><cite>Apache and Secure |
| Transactions</cite></a>.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="footer" name="footer"><strong>How can I attach a |
| footer to my documents without using SSI?</strong></a> |
| |
| <p>You can make arbitrary changes to static documents by |
| configuring an <a |
| href="../mod/mod_actions.html#action">Action</a> which |
| launches a CGI script. The CGI is then responsible for |
| setting a content-type and delivering the requested |
| document (the location of which is passed in the |
| <samp>PATH_TRANSLATED</samp> environment variable), along |
| with whatever footer is needed.</p> |
| |
| <p>Busy sites may not want to run a CGI script on every |
| request, and should consider using an Apache module to add |
| the footer. There are several third party modules available |
| through the <a href="http://modules.apache.org/">Apache |
| Module Registry</a> which will add footers to documents. |
| These include mod_trailer, PHP |
| (<samp>php3_auto_append_file</samp>), mod_layout, and |
| mod_perl (<samp>Apache::Sandwich</samp>).</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="search" name="search"><strong>Does Apache include a |
| search engine?</strong></a> |
| |
| <p>Apache does not include a search engine, but there are |
| many good commercial and free search engines which can be |
| used easily with Apache. Some of them are listed on the <a |
| href="http://www.searchtools.com/tools/tools.html">Web Site |
| Search Tools</a> page. Open source search engines that are |
| often used with Apache include <a |
| href="http://www.htdig.org/">ht://Dig</a> and <a |
| href="http://sunsite.berkeley.edu/SWISH-E/">SWISH-E</a>.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="rotate" name="rotate"><strong>How can I rotate my |
| log files?</strong></a> |
| |
| <p>The simple answer: by piping the transfer log into an |
| appropriate log file rotation utility.</p> |
| |
| <p>The longer answer: In the src/support/ directory, you |
| will find a utility called <a |
| href="../programs/rotatelogs.html">rotatelogs</a> which can |
| be used like this:</p> |
| <pre> |
| TransferLog "|/path/to/rotatelogs /path/to/logs/access_log 86400" |
| </pre> |
| |
| <p>to enable daily rotation of the log files.<br /> |
| A more sophisticated solution of a logfile rotation |
| utility is available under the name <code>cronolog</code> |
| from Andrew Ford's site at <a |
| href="http://www.cronolog.org/">http://www.cronolog.org/</a>. |
| It can automatically create logfile subdirectories based on |
| time and date, and can have a constant symlink point to the |
| rotating logfiles. (As of version 1.6.1, cronolog is |
| available under the <a href="../LICENSE">Apache |
| License</a>). Use it like this:</p> |
| <pre> |
| CustomLog "|/path/to/cronolog --symlink=/usr/local/apache/logs/access_log /usr/local/apache/logs/%Y/%m/access_log" combined |
| </pre> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="conditional-logging" |
| name="conditional-logging"><strong>How do I keep certain |
| requests from appearing in my logs?</strong></a> |
| |
| <p>The maximum flexibility for removing unwanted |
| information from log files is obtained by post-processing |
| the logs, or using piped-logs to feed the logs through a |
| program which does whatever you want. However, Apache does |
| offer the ability to prevent requests from ever appearing |
| in the log files. You can do this by using the <a |
| href="../mod/mod_setenvif.html#setenvif"><code>SetEnvIf</code></a> |
| directive to set an environment variable for certain |
| requests and then using the conditional <a |
| href="../mod/mod_log_config.html#customlog-conditional"><code> |
| CustomLog</code></a> syntax to prevent logging when the |
| environment variable is set.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="dbinteg" name="dbinteg"><b>Does Apache support any |
| sort of database integration?</b></a> |
| |
| <p>No. Apache is a Web (HTTP) server, not an application |
| server. The base package does not include any such |
| functionality. See the <a href="http://www.php.net/">PHP |
| project</a> and the <a |
| href="http://perl.apache.org/">mod_perl project</a> for |
| examples of modules that allow you to work with databases |
| from within the Apache environment.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="asp" name="asp"><b>Can I use Active Server Pages |
| (ASP) with Apache?</b></a> |
| |
| <p>The base Apache Web Server package does not include ASP |
| support. However, a number of projects provide ASP or |
| ASP-like functionality for Apache. Some of these are:</p> |
| <ul> |
| <li><a |
| href="http://www.apache-asp.org/">Apache::ASP</a></li> |
| <li><a |
| href="http://go-mono.com/archive/xsp-0.10.html">mod_mono</a></li> |
| <li><a |
| href="http://wwws.sun.com/software/chilisoft/">Chilisoft |
| ASP</a></li> |
| </ul> |
| <p>See also the <a |
| href="http://httpd.apache.org/related_projects.html">related |
| projects</a> page to find out more.</p> |
| <hr /> |
| </li> |
| |
| <li> |
| <a id="java" name="java"><b>Does Apache come with Java |
| support?</b></a> |
| |
| <p>The base Apache Web server package does not include |
| support for Java, Java Server Pages, Enterprise Java Beans, |
| or Java servlets. Those features are available as add-ons |
| from the Apache/Java project site, <URL:<a |
| href="http://jakarta.apache.org">http://jakarta.apache.org/</a>>.</p> |
| <hr /> |
| </li> |
| </ol> |
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