Brute Force Detection

Brute Force Detection (BFD) is a modular shell script for parsing application logs and checking for authentication failures. It uses a rules system where application-specific options are stored including regular expressions for each unique auth format.

BFD employs a log tracking system that reads from the last known position, avoiding redundant processing. It is compatible with syslog and logrotate style log rotations — automatically detecting rotation events and retrieving data from both new and rotated log files.