Web server logs are text files that are
automatically generated and maintained by a web server
The high rate at which data is generated by these logs means that the server
will often delete logs after a designated period of time
Web logs are often generated in a
Common Log Format (CLF) and Combined Log Format
Web logs allow you to
gather information about the type of users (and bots) that visit your website or application
A log file which creates a record every time a client requests access to your website or application
Access log
A log file which contains all errors that occur on the web server
Error log
Web server logs can be used to
develop a timeline for incident response investigations