CrowdSec is a security automation engine, using both local IP behavior detection & our community-driven IP reputation database.
SpyLog Alternatives for Linux
SpyLog is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best Linux alternative is CrowdSec. It's not free, so if you're looking for a free alternative, you could try CrowdSec or Fail2ban. If that doesn't suit you, our users have ranked more than 10 alternatives to SpyLog and nine of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to SpyLog are IPBanPro, reaction, Denyhosts and IPQ BDB.
Alternatives list
- 5 CrowdSec alternatives
- 21 Fail2ban 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...
- 15 IPBanPro alternatives
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.
Cost / License
- Free
- Open Source
Platforms
- Linux
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.
HeatShield is a network firewall management service for Linux servers. A firewall configured by HeatShield prevents unauthorized access to services running on your servers, such as SSH and MySQL. Using HeatShield, you can easily restrict access to these services so that only IP...

























