e.guardo Smart Defender Alternatives

Fail2ban scans log files (e.g. /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time...

SSHGuard monitors services through their logging activity. It reacts to messages about dangerous activity by blocking the source address with the local firewall. SSHGuard employs a clever parser that can transparently recognize several logging formats at once (syslog, syslog-ng...

IPBan is a FREE and open source application that allows auto banning ip addresses from failed login attempts. Many sources are watched such as SSH, SMTP, SQL-Server, MySQL, RDP and dropped packets.

The idea of denying access to SSH servers is nothing new and I was inspired by many other scripts that I discovered. However, none of them did things the way I envisioned them to. Also, they were all shell scripts which do not offer the elegance of Python.

Monitor logs from several sources and execute actions based on some rules. Can be used to protect against brute-force attacks.

RdpGuard allows you to protect your Remote Desktop (RDP) from brute-force attacks by blocking attacker's IP address. Fail2Ban for Windows.

Out-of-the-box security for Remote Deskop, Exchange, OWA, SharePoint, CRM, generic IIS applications and many other server systems.

IPQ BDB filtering is done by a user space netfilter daemon that issues verdicts after looking up the IP address in a Berkeley DB. The fuzzy blocking model, freely inspired by STOCKADE, is designed to block non-distributed dictionary attacks and mitigate spam.

Built to react fast in server farms environments (ISPs, HSPs, organisations...) Hookem-Banem is a log monitoring system which monitors logs being sent to a central server (syslog, file...) and on detection of malicious intent (repeated login failures, many failed RCPT commands...

Your Microsoft Windows servers are probably under constant attack and you may not even know it! Chances are if your hosting remote desktop, or other services such as Microsoft exchange, FTP, HTTP, HTTP’s or SQL. Your server is likely getting bombarded with failed login attempts.

Syspeace automatically blocks brute force attacks primarily for Windows Servers with good information in the admin mils telling you DNS names, country of origin and username used for the attack.

mobileFX Spartan RDP Guard is an intrusion detection system (IDS) and host-based intrusion prevention system (HIPS) implemented as a Windows 64-bit or 32-bit Service with location-based attack reporting and instant notifications.