About Webalizer

Webalizer is a log file analysis tool. Webalizer generates highly detailed usage statistics for Web and FTP servers in easily comprehensible graphical and tabular formats. The logs generated are a statistical encapsulation of user traffic on your site.

The reports are generated in accordance with the configuration options set for Webalizer by your service provider.

Webalizer reports are generated at a scheduled time, the settings of which are configured by your service provider, but you can override these settings to generate a report at any time using the Generate Reports option.

- Note: You can change the behavior of Webalizer reports for your site by configuring Webalizer from the command line interface. You can not reconfigure Webalizer from the Site Administrator control panel.

# Features of Webalizer

1. Fast processing of log files

Log files, over a period of time, grow to very large sizes. A relatively small Web site that has several thousand visitors a month accumulates approximately 25 megabytes of log files per month. Most log file analysis tools are slow, processing the log files at speeds of only 2-3 megabytes per minute. Webalizer can be very fast; on a 200Mhz pentium machine, over 10,000 records can be processed in one second, with a 40 Megabyte file taking roughly 15 seconds (over 150,000 records).

2. Portable

Webalizer is compatible with a range of hardware configurations ( Intel x86, Power PC, Sparc, Mips4 ) and operating systems (Linux, Solaris, OS/2) and can be easily ported from one system to another.

3. Configurable reports

Webalizer can be configured with custom options at any time by modifying the respective Webalizer configuration file (Web/FTP).

4. Incremental processing of logs

Incremental processing of logs enables large log files to be split up into multiple files for processing, without any loss of data.

# Supported log formats

Server logs follow defined standards in the way information is stored in a log file.

Webalizer supports the following log formats.

1. Common Log File (CLF) format

The CLF format specifies data such as the machine name or IP address from which the user made the request, as well as the information on the resource requested. This is the most commonly used format.

2. Combined log format

An extension of the Common Log File format, with additional information on referrals, user agents and cookies.

3. Xferlog format

The xferlog format is generated by the wu-ftpd and contains information on inbound and outbound requests.

4. Squid proxy logs

Squid logs record access information, system configuration errors and resource consumption (eg, memory, disk space).

# Report generation

Webalizer provides Web and FTP log reports in HTML format that can be viewed with any browser. It provides a highly detailed report of the activity on your server, manifest in a variety of reports. Webalizer reports are generated in accordance with the schedule and report settings configured for your site by your service provider.

- Note: To generate a report as and when needed, you must override the schedule settings (set by your service provider) using the Generate Reports option.