1. Nessus DOWNLOAD

Nessus is a Network Vulnerability Scanner tool based on a client-server model. It features high speed discovery, configuration auditing, asset profiling, and vulnerability analysis of your network and systems. It is constantly updated with more than 11,000 plugins for the free version. Every audit in Nessus is coded as a plugin : a simple program which checks for a given flaw. Plugins can be enabled or disabled accordingly, depending on the kind of Vulnerability analysis required for the specific network. Nessus works on Windows, Linux, OpenBSD, FreeBSD and other Unix flavors.

2. Snort DOWNLOAD

Arguably one of the best network intrusion detection and prevention systems (IDS) is the free and open source Snort toolkit. Through protocol analysis, content searching, and various pre-processors, Snort detects thousands of worms, vulnerability exploit attempts, port scans, and other suspicious behavior. Snort works on many operating systems, including Windows, Linux, Solaris, FreeBSD etc. Snort utilizes a rule-based language that combines the benefits of signature inspection, protocol inspection, and anomaly-based inspection. You can configure Snort to run in a few different modes such as Sniffer mode, Packet Logger mode, and Network Intrusion Detection (NIDS) mode. [Read more…]