Alternatives to Denyhosts for all platforms with any license

  • SSHGuard

    SSHGuard monitors services through their logging activity. It reacts to messages about dangerous activity by blocking the source address with the local firewall....

    Free Open Source Mac Linux

    SSHGuard icon
  • Fail2ban

    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...

    Free Open Source Linux

    No features added Add a feature

    Fail2ban icon
  • RdpGuard

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

    Commercial Windows

    RdpGuard icon
  • IPBan

    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...

    Free Open Source Mac Windows Linux

  • IPQ BDB

    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...

    Free Open Source Linux

    No features added Add a feature

    IPQ BDB icon
  • Pyruse

    Light-weight and extra-configurable peruser of systemd journal logs: ban IP, send immediate email, daily reportā€¦ all based on a single JSON configuration file.

    Free Open Source Linux Self-Hosted

    No features added Add a feature

  • HeatShield

    HeatShield is a network firewall management service and SSH brute force blocker for Linux servers.

    Freemium Linux Web

    No features added Add a feature

    HeatShield icon
  • Cyberarms Intrusion Detection and Defense System (IDDS)

    Windows Server brute force protection for Remote Desktop (including NLA), FTP, SMTP, and much more.

    • Discontinued Software has been set open-source and abandoned by the main developer. Seems a very good detector but fails to successfully stop attacks. When I have it set to block IPs after 5 failed attempts I shouldn't see multiple entries showing 300 attempts by the same IP addresses.

    Free Open Source Windows

    No features added Add a feature

    Cyberarms Intrusion Detection and Defense System (IDDS) icon
  • SpyLog

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

    Free Open Source Windows

  • win2ban

    win2ban is a Fail2ban implementation for Windows systems. It is a packaging of Fail2ban, Python, Cygwin, Winlogbeat and many other related tools to make it a complete...

    Free Personal Windows

    No features added Add a feature

Platforms

Desktop

Show 4 less popular platforms

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