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...
Advanced Policy Firewall AlternativesFirewalls and other similar apps like Advanced Policy Firewall
Advanced Policy Firewall is described as 'Server-based firewall. Reacts to attacks with intelligent abilities to detect malicious attempts to enter and reacting by blocking the IP temporarily. Repeated hits will ban the IP completely' and is a Firewall in the security & privacy category. There are seven alternatives to Advanced Policy Firewall for a variety of platforms, including Linux, Web-based, VirtualBox, Self-Hosted and VMware vSphere Hypervisor apps. The best Advanced Policy Firewall alternative is SSHGuard, which is both free and Open Source. Other great apps like Advanced Policy Firewall are CacheGuard Gateway, Shorewall, ConfigServer Firewall and iptablesbuild.
Alternatives list
CacheGuard Gateway is a free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on...

The Shoreline Firewall, more commonly known as “Shorewall”, is high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files. Shorewall reads those configuration files and with the help of the iptables...
A Stateful Packet Inspection (SPI) firewall, Login/Intrusion Detection and Security application for Linux servers.



iptablesbuild is effectively a configuration manager for iptables. It is intended to manage iptables configurations in a centralized location for multiple systems.
ferm is a tool to maintain complex firewalls, without having the trouble to rewrite the complex rules over and over again. ferm allows the entire firewall rule set to be stored in a separate file, and to be loaded with one command.
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...














