Introduction to the Apache Web Server - ApacheCon

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2.6 apxs apxs is a Perl utility for the purpose of installing modules as shared objects. You must have mod so already installed for this to work. We’re going to add mod rewrite to our existing Apache installation using apxs /usr/local/apache/bin/apxs -cia mod_rewrite.c 12
Section 3 Starting and Stopping http://httpd.apache.org/docs/invoking.html http://httpd.apache.org/docs/stopping.html In this section we discuss the utilities for starting and stopping Apache, including persuading Apache to start when your system boots up. Along the way, we’ll talk about the various Apache process architectures, and how to choose the one that’s right for you. 3.1 Apache process architecture It is useful to understand the Apache architecture before we go much farther. While this may seem like a bit of a tangent, this is by far the best place to put this in, and helps understand some basic things about how Apache uses your system. It also helps understand why you have to start it as root, but why this is still secure, as well as numerous other things which will be useful in the long run. This section is also crucial for understanding many future sections, such as performance, the User and Group directives, and security. 3.1.1 Apache 1.3 With Apache 1.3, Apache runs as multiple processes, each of which is capable of handling incoming HTTP requests. A single parent process, running as root, manages the pool of available servers, creating new ones as they are needed, and reaping excess ones when load is reduced. The size of this pool of servers is controlled by the directivesMinSpareServers and MaxSpareServers, which specify how many idle processes there should be at any given time. When a new client request comes in, one of the idle processes is delegated to handle that request. If this causes the number of idle processes to dip below MinSpareServers, then Apache will create a new child process to add to the pool. Likewise, when a client disconnects, Apache will, if necessary, kill off child processes to ensure that there are no more than MaxSpareServers idle processes in the pool. 13
Page 1: Introduction to the Apache Web Serv
Page 4 and 5: 3.1 Apache process architecture . .
Page 6 and 7: 8.3 Alias . . . . . . . . . . . . .
Page 8 and 9: 13 SSI 75 13.1 Configuration for SS
Page 10 and 11: 16.5 Typical errors . . . . . . . .
Page 12 and 13: 19.8 Modules . . . . . . . . . . .
Page 14 and 15: 23.1 Caching . . . . . . . . . . .
Page 16 and 17: He wrote the CERN web server, and t
Page 18 and 19: • provide a foundation for open,
Page 20 and 21: This is a good point to encourage d
Page 22 and 23: • htdocs • icons Show the stude
Page 24 and 25: ./configure --help ./configure --pr
Page 28 and 29: The “correct” value for these d
Page 30 and 31: • Some modules, like mod php, don
Page 32 and 33: • help apachectl symlink You may
Page 35 and 36: Section 4 Configuration files http:
Page 37 and 38: directory - Can be used in a secti
Page 39 and 40: httpd -DUSESSL Then you could add a
Page 41 and 42: Section 5 .htaccess files 5.1 Confi
Page 43: 5.3 Exercise Create .htaccess file
Page 46 and 47: ServerName www.foo.com DocumentRoot
Page 48 and 49: 3. Verify that they are serving con
Page 51 and 52: Section 7 MIME http://httpd.apache.
Page 53 and 54: AddType application/x-tar tgz Note
Page 55 and 56: 7.4.3 mod gzip More will be said ab
Page 57 and 58: Section 8 URL Mapping http://httpd.
Page 59 and 60: Equivalent to ... Alias /cgi-bin/ /
Page 61 and 62: Then /cgi-bin/404.cgi will look lik
Page 63 and 64: ----------------------------- The
Page 65: UserDir disabled UserDir enabled rb
Page 68 and 69: 9.2 Negotiation Methods 9.2.1 Multi
Page 70 and 71: Note, however, that CacheNegotiated
Page 72 and 73: 10.3 IndexOptions The arguments to
Page 74 and 75: 10.4 Additional directives In addit
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Section 11 Performance Tuning http:
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11.5 Tuning configuration settings
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11.5.6 mod mmap static Map static f
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- JSP - etc, etc, etc • Each addr
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#!/usr/bin/perl use CGI; my $cgi =
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Section 13 SSI http://httpd.apache.
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SSIStartTag "" 13.4 SSI directives
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Most commonly, include is used to i
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SetHandler Much like the AddHandler
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advertising a page that has moved,
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AddHandler type-map .var 14.1.3 Cus
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AddOutputFilterByType DEFLATE text/
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15.4 Configuration 15.4.1 PerlRequi
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Wow. 15.6.2 Apache::Registry If you
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15.8.2 Installing the example mod p
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package Acme::Apache::Werewolf; use
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• "GET / HTTP/1.0" Request - Meth
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16.4 Exercises 1. Construct a log f
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• Precisely how many visitors •
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16.9.2 rotatelogs CustomLog "|/usr/
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• Set configuration to use this f
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• mod auth nds (Netware Directory
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110
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• etc • Also, names like ’ema
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114
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19.2 File permissions The overridin
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19.2.6 public html If users have we
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19.3.3 ServerSignature Automaticall
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* Don’t put important things in t
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19.10 mod security http://www.modse
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126
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20.3 Certificates • Generate a ke
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130
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21.1.2 Apache 2.0 modules: [access
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21.6 mod auth Name mod auth On by d
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21.13 mod cgi Name mod cgi On by de
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21.21 mod include Name mod include
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Mapping files into memory to improv
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21.35 mod status Name mod status On
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To enable DAV in a particular direc
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23.2 Proxying The proxy part lets y
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