GoAccess is a real-time web log analyzer and interactive viewer
Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
Sends logs to files, sockets, inboxes, databases and web services
ISC dhcpd leases usage analysis
A multi-threaded, multi-database tcp-based database insertion app.
Strong Email & Apache Log Analysis with Active Security Features
repair corrupted pcap and pcapng files
Open Source SIEM