In order to effectively manage and monitor your infrastructure, a web admin needs clear and transparent information about the types of activity going on within their servers. Server logs provide a documented footprint of all traffic and errors that occur within an environment. Apache has two main log files, Error Logs, and Access Logs.
If you’re reading this article, you probably already use Apache, and are familiar with its features and functionality. Users of Apache and any technology should also be aware of the importance of monitoring application logs to ensure that they are running optimally, and of using them to identify problems before they cause problems for the consumers of a site.