Apache HTTP Server (https://httpd.apache.org) is one of the most popular web servers. Apache servers usually generate two types of logs: access logs and error logs. We provide an error log for the purpose of research on anomaly detection and diagnosis. The log file was collected from a Linux system running Apache Web server, as part of the Public Security Log Sharing Site project. If you are interested in Apache access logs, you may find them there.
Note that Apache_2k.log is a sample log. The raw logs can be requested from Zenodo: https://doi.org/10.5281/zenodo.1144100