CrowdSec is the most popular Linux & Self-Hosted alternative to SpyLog.
CrowdSec is the most popular Open Source & free alternative to SpyLog.
- CrowdSec is Free Personal and Open Source
- CrowdSec is Privacy focused and Lightweight
SpyLog Alternatives
SpyLog is described as 'Monitor logs from several sources and execute actions based on some rules. Can be used to protect against brute-force attacks' and is a Remote Desktop tool in the network & admin category. There are more than 10 alternatives to SpyLog for Windows, Linux, Web-based, Self-Hosted and Mac. The best SpyLog alternative is CrowdSec. It's not free, so if you're looking for a free alternative, you could try CrowdSec or Fail2ban. Other great apps like SpyLog are IPBanPro, reaction, Denyhosts and RdpGuard.
Alternatives list
- 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...
SSHGuard is the most popular Mac alternative to SpyLog.
- SSHGuard is Free and Open Source
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.
IPBanPro is the most popular Windows alternative to SpyLog.
IPBanPro is the most popular commercial alternative to SpyLog.
- IPBanPro is Paid and Open Source
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
- 15 RdpGuard alternatives
RdpGuard allows you to protect your Remote Desktop (RDP) from brute-force attacks by blocking attacker's IP address. Fail2Ban for Windows.



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.
Tallow is a fail2ban/lard replacement that uses systemd's native journal API to scan for attempted ssh logins, and issues temporary IP bans for clients that violate certain login patterns.
Cost / License
- Free
- Open Source
Platforms
- Linux
- 13 Cyberarms Intrusion Detection and Defense alternatives
Out-of-the-box security for Remote Deskop, Exchange, OWA, SharePoint, CRM, generic IIS applications and many other server systems.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Windows

Protected against RDP-Brute forcers. It installs a service which scans the event log for anomalies every 30 seconds (by default).


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.























