Apache Httpd Server



We are your complete Apache web server and server management resource. Whether you are an advanced expert or a complete novice, we have tips and information to help you! Whether you need a quick reference for a command, or an in-depth walk-through of setting up a high volume database server, we aim to provide you with information required to. The Apache HTTP Server provides a variety of different mechanisms for logging everything that happens on your server, from the initial request, through the URL mapping process, to the final resolution of the connection, including any errors that may have occurred in the process. The Apache HTTP Server, httpd, is an open source web server developed by the Apache Software Foundation. If you are upgrading from a previous release of Red Hat Enterprise Linux, you will need to update the httpd service configuration accordingly.

Apache is one of the most popular web servers in the FOSS world. First, I strongly recommend that you install the apache server on an external drive width swapfile, especially if you need to use mysql. If you do not have the external drive and the swapfile installed, please look first below. You can copy text, and width right mouse click copy the contents to your PuTTY terminal.

Apache Httpd Server

Installation

Installing apache with opkg is very simple:

or alternatively install it to the external drive: (see below)

In case you manually mounted the hard drive, restart the drive, to make necessary links:

Configuration

Edit /etc/apache/httpd.conf to change the configuration according to your needs.

Sometimes you need to uncomment a line (=remove the # character at the beginning of the line) to activate the respective config option.

Search for “Listen 12.34.56.78:80” and replace with your router's IP address and a port different then 80, because 80 is most likely already used by the OpenWrt GUI (LuCI).

Search for “ServerName” and do the same:

ServerName YourServer:81

where YourServer is FQDN of your server name like www.something99.com

Connect to http://192.168.1.1:81 in your browser to see if your configuration works.Place your web server shared documents under /usr/share/htdocs.

External drive and the swapfile install

Since the Apache HTTP Server is quite a big memory hog, we recommend to use it only in conjunction with additional storage. Please follow these guides to get that started:

Configuring Apache and PHP5

To install PHP see →php

Edit

Search for “doc_root” and “extension=gd.so”. Do not specify the doc_root, and uncomment the extension=gd.so.

Configure Apache again:

NOTE: This is a rather unsafe configuration. If you use this, you are putting yourself at risk. (http://insecurety.net/?p=912)

Search for the portion of Your Apache configuration file which has the ScriptAlias section. Add the line from below immediately after the ScriptAlias line for “cgi-bin”. Make sure that the line goes before the closing </IfModule> for that <IfModule alias_module> section.

ScriptAlias /php/ “/usr/bin/”

Search for the “AddType” comment block, and add the AddType line below. You can find the AddType lines in the <IfModule mime_module> section. Add the following line just before the closing </IfModule> for that section.

Add this line to the end of that file:

Action application/x-httpd-php “/php/php-cgi”

Search for this section:

<Directory “/usr/share/cgi-bin”> AllowOverride None Options None Order allow,deny Allow from all </Directory>

Add the following lines immediately after the section you just found.

<Directory “/usr/bin”> AllowOverride None Options none Order allow,deny Allow from all </Directory>

NOTE: The /usr/bin directory contains far more than just php-cgi. On a public server it could be wise to move php-cgi to its own directory and then configure Apache to use that separate directory instead!

Configuring the default Index Page

Search for “DirectoryIndex index.html” and change to:

Restart the Apache Web Server

Apache Http Server Test Page Powered By Centos

Test PHP

Create /usr/share/htdocs/index.php with the following content:

Server

Open your browser and access the file http://192.168.1.1:81/index.php

When apache accept TCP connection, but not send respon. In log is:[notice] child pid 19745 exit signal Segmentation fault (11)

It's necessary to set lower debug level: LogLevel error

Normally apache will not start on boot, I believe its deliberate so that it wont conflict with the default (uHTTPd) web-server, you will need to add a file to '/etc/init.d/', probably naming it apache and setting it for execution (chmod +x), the file itself is rather simple :

#!/bin/sh /etc/rc.common# Example script# Copyright (C) 2007 OpenWrt.orgSTART=60STOP=15start() { echo launch apache # commands to launch application apachectl start}restart() { echo re-start apache # commands to launch application apachectl restart}stop() { echo stop apache # commands to kill application apachectl stop}

once in place, you can issue the command '/etc/init.d/apache enable' to spawn the server @ boot

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The Apache HTTP Server Project is a collaborative software developmenteffort aimed at creating a robust, commercial-grade, featureful, andfreely-available source code implementation of an HTTP (Web) server. Theproject is jointly managed by a group of volunteers located around theworld, using the Internet and the Web to communicate, plan, and develop theserver and its related documentation. This project is part of the ApacheSoftware Foundation. In addition, hundreds of users have contributed ideas,code, and documentation to the project. This file is intended to brieflydescribe the history of the Apache HTTP Server and recognize the manycontributors.

In February of 1995, the most popular server software on the Web was thepublic domain HTTP daemon developed by Rob McCool at the National Centerfor Supercomputing Applications, University of Illinois, Urbana-Champaign.However, development of that httpd had stalled after Rob left NCSA inmid-1994, and many webmasters had developed their own extensions and bugfixes that were in need of a common distribution. A small group of thesewebmasters, contacted via private e-mail, gathered together for the purposeof coordinating their changes (in the form of 'patches'). Brian Behlendorfand Cliff Skolnick put together a mailing list, shared information space,and logins for the core developers on a machine in the California Bay Area,with bandwidth donated by HotWired. By the end of February, eight corecontributors formed the foundation of the original Apache Group:

  • Brian Behlendorf
  • Roy T. Fielding
  • Rob Hartill
  • David Robinson
  • Cliff Skolnick
  • Randy Terbush
  • Robert S. Thau
  • Andrew Wilson

with additional contributions from

  • Eric Hagberg
  • Frank Peters
  • Nicolas Pioch

Using NCSA httpd 1.3 as a base, we added all of the published bug fixes andworthwhile enhancements we could find, tested the result on our ownservers, and made the first official public release (0.6.2) of the Apacheserver in April 1995. By coincidence, NCSA restarted their own developmentduring the same period, and Brandon Long and Beth Frank of the NCSA ServerDevelopment Team joined the list in March as honorary members so that thetwo projects could share ideas and fixes.

The early Apache server was a big hit, but we all knew that the codebaseneeded a general overhaul and redesign. During May-June 1995, while RobHartill and the rest of the group focused on implementing new features for0.7.x (like pre-forked child processes) and supporting the rapidly growingApache user community, Robert Thau designed a new server architecture(code-named Shambhala) which included a modular structure and API forbetter extensibility, pool-based memory allocation, and an adaptivepre-forking process model. The group switched to this new server base inJuly and added the features from 0.7.x, resulting in Apache 0.8.8 (and itsbrethren) in August.

After extensive beta testing, many ports to obscure platforms, a new set ofdocumentation (by David Robinson), and the addition of many features in theform of our standard modules, Apache 1.0 was released on December 1, 1995.

Less than a year after the group was formed, the Apache server passedNCSA's httpd as the #1 server on the Internet and according to the surveyby Netcraft , it retains that positiontoday.

Apache Http Server Project

In 1999, members of the Apache Group formed the Apache SoftwareFoundation to provide organizational, legal, andfinancial support for the Apache HTTP Server. The foundation has placed thesoftware on a solid footing for future development, and greatly expandedthe number of Open Source software projects, which fall under thisFoundation's umbrella.

If you just want to send in an occasional suggestion/fix, then you cansimply use the bug reporting form at <http://httpd.apache.org/bug_report.html >. You can also subscribe tothe announcements mailing list (announce@httpd.apache.org)which we use to broadcast information about new releases, bugfixes, andupcoming events. There's a lot of information about the development process(much of it in serious need of updating) to be found at <http://httpd.apache.org/dev/ >.

NOTE: The developer mailing list is NOT a user support forum; it isfor people actively working on development of the server code. There isalso a 'docs' subproject for those who are actively developing andtranslating the documentation. If you have user/configuration questions,subscribe to the Users list or try the USENETnewsgroups ' ' or ' ' (as appropriate forthe platform you use).

There is a core group of contributors, formed initially of the projectfounders, and augmented from time to time by other outstandingcontributors. There are 'committers', who are granted access to the sourcecode control repositories to help maintain the project or docs, and thecore group now managing the project, which is called the Apache HTTPProject Management Committee (PMC, for short). In fact, each ApacheSoftware Foundation project has its own PMC, to determine committers,project direction and overall management. The terms 'The Apache Group' or'Apache Core' are no longer used.

The project is a meritocracy -- the more work you have done, the more youwill be allowed to do. The group founders set the original rules, but theycan be changed by vote of the active PMC members. There is a group ofpeople who have logins on our server and access to the source coderepositories. Everyone has read-only access to the repositories. Changes tothe code are proposed on the mailing list and usually voted on by activemembers -- three +1 ('yes' votes) and no -1 ('no' votes, or vetoes) areneeded to commit a code change during a release cycle; docs are usuallycommitted first and then changed as needed, with conflicts resolved bymajority vote.

Our primary method of communication is our mailing list. Approximately 40messages a day flow over the list, and are typically very conversational intone. We discuss new features to add, bug fixes, user problems,developments in the web server community, release dates, etc. The actualcode development takes place on the developers' local machines, withproposed changes communicated using a patch (output of a unified 'diff -uoldfile newfile' command), and then applied to the source code controlrepositories by one of the committers. Anyone on the mailing list can voteon a particular issue, but only those made by active members or people whoare known to be experts on that part of the server are counted towards therequirements for committing. Vetoes must be accompanied by a convincingtechnical justification.

Apache Http Server Vs Tomcat

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New members of the Apache HTTP Project Management Committee are added whena frequent contributor is nominated by one member and unanimously approvedby the voting members. In most cases, this 'new' member has been activelycontributing to the group's work for over six months, so it's usually aneasy decision.

Apache Http Server Mod_mime Buffer Overread

The project guidelines continuously evolve under the oversight of the PMC,as the membership of the group changes and our development/coordinationtools improve.

Apache Software exists to provide robust and commercial-grade referenceimplementations of many types of software. It must remain a platform uponwhich individuals and institutions can build reliable systems, both forexperimental purposes and for mission-critical purposes. We believe thatthe tools of online publishing should be in the hands of everyone, and thatsoftware companies should make their money by providing value-addedservices such as specialized modules and support, amongst other things. Werealize that it is often seen as an economic advantage for one company to'own' a market - in the software industry, that means to control tightly aparticular conduit such that all others must pay for its use. This istypically done by 'owning' the protocols through which companies conductbusiness, at the expense of all those other companies. To the extent thatthe protocols of the World Wide Web remain 'unowned' by a single company,the Web will remain a level playing field for companies large and small.Thus, 'ownership' of the protocols must be prevented. To this end, theexistence of robust reference implementations of various protocols andapplication programming interfaces, available free to all companies andindividuals, is a tremendously good thing.

Furthermore, the Apache Software Foundation is an organic entity; those whobenefit from this software by using it, often contribute back to it byproviding feature enhancements, bug fixes, and support for others in publiclists and newsgroups. The effort expended by any particular individual isusually fairly light, but the resulting product is made very strong. Thesekinds of communities can only happen with freely available software -- whensomeone has paid for software, they usually aren't willing to fix its bugsfor free. One can argue, then, that Apache's strength comes from the factthat it's free, and if it were made 'not free' it would suffertremendously, even if that money were spent on a real development team.

Apache Httpd Servername

We want to see Apache Software used very widely -- by large companies,small companies, research institutions, schools, individuals, in theintranet environment, everywhere -- even though this may mean thatcompanies who could afford commercial software, and would pay for itwithout blinking, might get a 'free ride' by using Apache. We are evenhappy when some commercial software companies completely drop their ownHTTP server development plans and use Apache as a base, with the properattributions as described in theLICENSE. That is to say, the Apache HTTPSever only comes from the Apache Software Foundation, but many vendors shiptheir own product 'based on the Apache {Project}'. There is no '{Vendor}Apache {Product}', this is an abuse of the Apache Software Foundation'smarks.





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