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Apache Today: Apache Guide: Logging with Apache--Understanding Your access_log

Aug 21, 2000, 18:43 (0 Talkback[s])
(Other stories by Rich Bowen)


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[ Thanks to Kevin Reichard for this link. ]

"Apache comes with built-in mechanisms for logging activity on your server. In this series of articles, I'll talk about the standard way that Apache writes log files, and some of the tricks for getting more useful information and statistics out of your server. This week we'll talk about the information that appears in your transfer log, and what it all means."

"If you have done a default installation of Apache, when you run your server, two log files will get written. These files are called access_log (access.log on Windows) and error_log (error.log on Windows). These files can be found (again, if you did a default installation) in /usr/local/apache/logs. On Windows, the logs will be in the logs subdirectory of wherever you installed Apache. Various of the package managers put the log files in various other places, and you'll have to poke around to find them, or check in the configuration file for the configured location."

"access_log is, as the name suggests, the log of all accesses to your server. Typical entries in this file look like: - - [19/Aug/2000:14:47:37 -0400] "GET / HTTP/1.0" 200 654
This line contains 7 pieces of information. Actually, two of them are blank in this example, but there is space for 7 pieces of information."

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