Introduction to the Apache Web Server - ApacheCon

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.htaccess /usr/.htaccess /usr/local/.htaccess /usr/local/apache/.htaccess /usr/local/apache/htdocs/.htaccess /usr/local/apache/htdocs/services/.htaccess /usr/local/apache/htdocs/services/training/.htaccess /usr/local/apache/htdocs/services/training/apache/.htaccess Note that this is the absurd worst case, and never happens in practice. In order to make this happen, you’d have to have AllowOveride All set for / which nobody in their right mind would ever do. On the other hand, we should not assume anything. People unaware of the impact of this might indeed to that for convenience. But in practice, you end up checking for .htaccess files down to whatever lowest level you have permitted AllowOverride. Thus, if you: AllowOverride All Then you’d really only get requests for: /usr/local/apache/htdocs/.htaccess /usr/local/apache/htdocs/services/.htaccess /usr/local/apache/htdocs/services/training/.htaccess /usr/local/apache/htdocs/services/training/apache/.htaccess Which is still a little much, but less serious. Note, however, that dropping the AllowOverride directive in this scenario gives 2- or 3-fold performance improvement, even for directories where you’re not using .htaccess files at all, based on my benchmarks. I’d recommend that you do your own benchmarks to verify these numbers. • Directives found will be applied in the order that they are found, overriding previous settings. • This is done every time a file is served • Can have multiple settings for AccessFileName AccessFileName .htaccess .acl directory.conf In which case, it will look for each of these files in each directory 28
5.3 Exercise Create .htaccess file in your document directory, containing the following, or something like it: DirectoryIndex default.htm Create a default.htm file in that directory, and get the .htaccess file working. Students seem to require a lot of hand-holding here. They will need to do a number of things to get this working, and the idea is to get them to do as much of it by themselves as possible. They will need to: Create default.htm Create .htaccess Enable AllowOverride appropriately for the directory in question. Encourage them to use the correct AllowOverride setting, rather than just using All. Impress upon them the dangers of using AllowOverride Options, which is, of course, included in All. 29
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 26 and 27: 2.6 apxs apxs is a Perl utility for
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: Section 5 .htaccess files 5.1 Confi
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
Page 77 and 78: Section 11 Performance Tuning http:
Page 79 and 80: 11.5 Tuning configuration settings
Page 81: 11.5.6 mod mmap static Map static f
Page 84 and 85: - JSP - etc, etc, etc • Each addr
Page 86 and 87: #!/usr/bin/perl use CGI; my $cgi =
Page 89 and 90: Section 13 SSI http://httpd.apache.
Page 91 and 92: 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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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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