Over 2 million downloads worldwide each year

[rifathasan]

Snort is another open source tool used to detect and prevent intrusion attempts on computer networks. This tool supports Windows, Centos, FreeBSD, and Fedora platforms. Snort, an intrusion prevention tool , is capable of performing real-time network traffic analysis and logging packets. Suitable for small and medium businesses, Snort is compatible with various types of operating systems and hardware configurations. Key features:

Effectiveness of detecting network attacks, including CGI attacks, fingerprinting attacks, and buffer overflow attacks
Performs protocol analysis and compares data obtained from traffic with a database of previous attacks.
Real-time analysis and recording of data packets
Firewall protection to block twitter database malicious network requests
Provide timely alerts to security professionals about potential intrusions
Nessus
Trusted and used by over 30,000 organizations worldwide, Nessus is a widely used security tool that detects website and network vulnerabilities. With a Six Sigma rating, Nessus has the lowest false positive rate of 0.32 defects per 1 million scans. Nessus can detect vulnerabilities including software bugs , missing patches, and any misconfigurations in operating systems and IT devices. The tool is available in both a free trial and a professional paid version that includes a vulnerability scanning tool to detect potential exploits. Key features:


Pre-configured policies and templates —including 450 compliance and configuration templates—for a range of IT and mobile assets.
Custom reports in HTML , CSV and Nessus XML formats
Automatic vulnerability assessment results in real time with every plugin update
Grouped view feature for similar vulnerabilities and issues in one thread