How to enable loglevel debug on Apache2 server

Question

My error log contains      Request exceeded the limit of 10 internal redirects due to probable configuration error  Use  LimitInternalRecursion  to increase the limit if necessary  Use  LogLevel debug  to get a backtrace    I replaced loglevel on apache config file   LogLevel debug  After restarting  I m getting the same error message without what could be called  a backtrace   As I understand there should be those 10 lines of redirects generated by mod rewrite regex   After searching all over the internet I ve found plenty of explanations of loglevel and mod rewrite  but not a word of how to make loglevel debug work   Any ideas

User · Answer

You need to use LogLevel rewrite trace3 to your httpd conf in newer version http   httpd apache org docs 2 4 mod mod rewrite html logging

User · Answer

Do note that on newer Apache versions the RewriteLog and RewriteLogLevel have been removed  and in fact will now trigger an error when trying to start Apache  at least on my XAMPP installation with Apache 2 4 2       AH00526  Syntax error on line xx of path to config file conf    Invalid command  RewriteLog   perhaps misspelled or defined by a module not included in the server configuration    Instead  you re now supposed to use the general LogLevel directive  with a level of trace1 up to trace8   debug  didn t display any rewrite messages in the log for me   Example  LogLevel warn rewrite trace3  For the official documentation  see here   Of course this also means that now your rewrite logs will be written in the general error log file and you ll have to sort them out yourself

User · Answer

Edit  note that this answer is 3  years old  For newer versions of apache  please see the answer by sp00n  Leaving this answer for users of older versions of apache   For older version apache   For debugging mod rewrite issues  you ll want to use RewriteLogLevel and RewriteLog   RewriteLogLevel 3 RewriteLog   usr local var apache logs rewrite log

[debugging] How to enable loglevel debug on Apache2 server

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