Apache HTTP Server (2)

Tokio Kikuchi

Configuration Sections

<Directory> <Location> etc
http://www.apache.jp/manual/sections.html

Allow/Deny by Host

Order, Allow, Deny
http://www.apache.jp/manual/mod/mod_authz_host.html

Logging

http://www.apache.jp/manual/logs.html

URL Mapping

Mapping URLs to the Filesystem
DocumentRoot / Alias / ScriptAlias / Userdir / Redirect ...
DirectoryIndex

Example (1)

www.is.kochi-u.ac.jp
DocumentRoot /www/Public
DirectoryIndex index.html welcome.html
http://www.is.kochi-u.ac.jp/ -> /www/Public/index.html

Example (2)

Alias /icons/ "/www/icons/"
Options Indexes
http://www.is.kochi-u.ac.jp/icons/ -> /www/icons/ directory list

Example (3)

UserDir public_html
http:/www.is.kochi-u.ac.jp/~tkikuchi/ -> ~tkikuchi/public_html/index.html

CGI

Common Gateway Interface
How-to CGI
ScriptAlias
AddHandler cgi-script .cgi + Options ExecCGI

CGI program

Should be executable
Output Content-Type and other headers
Input parameters are in
- GET method: QUERY_STRING environment variable
- POST method: stdin

CGI Environment Variables

HTTP Headers -> HTTP_
ex. Accept-Language: -> HTTP_ACCEPT_LANGUAGE

SSI

Server Side Includes
How-to SSI
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml
Options +Includes (in <Directory>)

Authentication

Authentication, Authorization, and Access Control
Basic Authentication
- put a password file in somewhere
Create the password file ... htpasswd (/sw/www/bin/htpasswd)

Virtual Host

IP-based / Name-based
You can have multiple ethernet interfaces for a host computer.
You can assign multiple alias IP address for an ethernet interface.
You can assign multiple alias host names for an IP address (by DNS CNAME).

Apache Name-based Virtual Host

NameVirtualHost
<VirtualHost> section
ServerName

Next week

Exercises ... in Computer Exercise Room (2F)

Homework for Master Students

None for this week

Quiz of the day

Spell out these terms:
CGI
SSI