Many new features and a lot of bug fixes. It also monitors the checksums of your binaries, root accounts, and a few other things. It is a program designed to detect and respond to port scans against a target host in real-time. It runs on TCP and UDP sockets and works on most UNIX systems. Advanced stealth detection modes are available under Linux only and detect SYN, FIN, NULL, XMAS, and Oddball packet scans.
All modes support real-time blocking and reporting of violations.
A NIDS is a computer security system which detects misuse, attacks against, or compromise of computers connected to a network. They operate by passively examining network packets as they travel over the wire and alerting administrators when they see something unusual or malicious. Version 2.0.12 and newers seems to be not vulnerable to this attack, because it logs the ip at connection time. Ok versioner received no bug reports. Versioner gleans information on a list of .dlls or .exes on a system and also determines timedate stamp and file size.