RewriteLogLevel
This directive sets the verbosity of the logging that will occur for rewrite directives. Valid values range from 0 - 9, with 0 being no logging at all, and 9 logging all possible information. Currently only values 1 - 4 are used within mod_rewrite. Log levels 4 - 9 will return the same results.
When looking at a line from the log, for example:
127.0.0.1 - - [19/Nov/2009:14:41:25 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) pass through /paul_reinheimer.png
the number shown in round brackets (1) indicates the level of the message. You will not be shown messages with a higher log level than what you have set in the RewriteLogLevel directive. Logs will be stored in file specified by the RewriteLog directive.
Two requests will be used to demonstrate the difference between the different log levels.
- A request for the existing resource paul_reinheimer.png 2. A request for the non-existant resource rich_bowen.png
This rule from the examples was used:
RewriteEngine On
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-d
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule . /index.php
Log Level 4 (or higher)
Existing:
127.0.0.1 - - [19/Nov/2009:14:41:25 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) pass through /paul_reinheimer.png
Non-Existant:
127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) init rewrite engine with requested uri /rich_bowen.png 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (3) applying pattern '.' to uri '/rich_bowen.png' 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (4) RewriteCond: input='/var/www/vhost.example.com/rich_bowen.png' pattern='!-d' => matched 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (4) RewriteCond: input='/var/www/vhost.example.com/rich_bowen.png' pattern='!-f' => matched 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) rewrite /rich_bowen.png -> /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) local path result: /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) prefixed with document_root to /var/www/vhost.example.com/index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (1) go-ahead with /var/www/vhost.example.com/index.php [OK]
Note: A separate request is also made for favicon.ico by most browsers:
127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (3) applying pattern '.' to uri '/favicon.ico' 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (4) RewriteCond: input='/var/www/vhost.example.com/favicon.ico' pattern='!-d' => matched 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (4) RewriteCond: input='/var/www/vhost.example.com/favicon.ico' pattern='!-f' => matched 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (2) rewrite /favicon.ico -> /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (2) local path result: /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (2) prefixed with document_root to /var/www/vhost.example.com/index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) go-ahead with /var/www/vhost.example.com/index.php [OK]
Log Level 3
Existing:
127.0.0.1 - - [19/Nov/2009:14:41:25 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) pass through /paul_reinheimer.png
Non-Existant:
127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) init rewrite engine with requested uri /rich_bowen.png 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (3) applying pattern '.' to uri '/rich_bowen.png' 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) rewrite /rich_bowen.png -> /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) local path result: /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) prefixed with document_root to /var/www/vhost.example.com/index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (1) go-ahead with /var/www/vhost.example.com/index.php [OK]
Log Level 2
Existing:
127.0.0.1 - - [19/Nov/2009:14:41:25 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) pass through /paul_reinheimer.png
Non-Existant:
127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) init rewrite engine with requested uri /rich_bowen.png 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) rewrite /rich_bowen.png -> /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) local path result: /index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (2) prefixed with document_root to /var/www/vhost.example.com/index.php 127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (1) go-ahead with /var/www/vhost.example.com/index.php [OK]
Log Level 1
Existing:
127.0.0.1 - - [19/Nov/2009:14:41:25 --0500] [vhost.example.com/sid#8475130][rid#8681480/initial] (1) pass through /paul_reinheimer.png
Non-Existant:
127.0.0.1 - - [19/Nov/2009:14:42:55 --0500] [vhost.example.com/sid#8475130][rid#867d470/initial] (1) go-ahead with /var/www/vhost.example.com/index.php [OK]
Log Level 0
Existing:
}}}
=== Non-Existant ===
{{{
Both entries were intentionally, and correctly, left blank