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What is a Server Error Log and How to Find 404 Errors in a Server Error Log




How do I find 404 errors in my server error log?


A server Error Log File for a webserver is the file (commonly error_log in Unix and error.log Windows) where the server sends diagnostic information and records errors that it encounters while processing requests. Generally it is the primary file to look at when problems are encountered ranging from document errors to scripting or cgi errors. Error logs are essential to maintaining visitor retention since they will indicate the 400 series of errors like the common 404 - Page Cannot Be Found errors. In the case of a 404 error the Web administrator or Webmaster can implement redirects so that visitors will be directed to existing content while he/she fixes the broken URL link causing the problem.


What Does a Line from as Server Error Log look like ?

[Thu Oct 14 16:34:11 2004] [error] [client 65.6.206.234] File does not exist: /home/simpson/public_html/berko/images/list_3.gif

Picture of an error 404 Page cannot be found that a visitor would see in their browser.

Picture of a 404 page not found