Fail2ban - Intrusion prevention framework
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
RdpGuard - RdpGuard allows you to protect your Remote Desktop (RDP), POP3, FTP, SMTP, IMAP, MSSQL, MySQL, VoIP/SIP from brute-force attacks by blocking attacker's IP address. Fail2Ban for Windows.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
SSHGuard - SSHGuard monitors services through their logging activity.
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...