Comtun Pro 4.5a
Proxy/Firewall for internet connection sharing. Advanced features useful for both business and home use. With support for access control and banner blocking, you have ultimate control of your connection. A fully customizable firewall protects you from hackers, and works seemlessly with the proxy. ComTun uses NAT to give clients a transparent connection to the Internet and includes HTTP caching proxy and authentication. Built-in DHCP server.

Nsauditor Network Security Auditor 1.8.4
Nsauditor Network Security Auditor is a network security scanner that allows to audit and monitor network computers for possible vulnerabilities, checks your network for all potential methods that a hacker might use to attack it. Nsauditor is a complete networking utilities package that includes more than 45 network tools for network auditing, scanning, monitoring and more. Overall, this is a very complete package for a surprisingly low price.

ThreatSentry 3.0
ThreatSentry Host Intrusion Prevention + Application Firewall defends Windows Web servers against new and progressive attack techniques, protects network weak points, overcomes lapses in patch management, and reinforces regulatory compliance. An ISAPI filter hosted in MMC, ThreatSentry compares server requests to a knowledgebase and an evolving system baseline to detect untrusted activity and prevent attacks on Microsoft® IIS.

PortMarshaller 1.2
PortMarshaller is a software-based TCP/IP port forwarder and network administration service. The software accepts connections on a particular TCP port, and establishes connections to a different TCP port to fulfill requests. Administrative web interface allows the monitoring of connection and data transfer statistics. New access control lists allow the filtering of incoming connections.

UserGate security server 4.3
Protect your network with UserGate Internet security server, designed to allow Internet access to be delivered safely and securely across your network. Prevent your LAN and/or Intranet users from accessing inappropriate web resources with UserGate's flexible sets of rules. Ensure that your user's computers receive only traffic that is clear of spam and viruses by using UserGate's powerful combination of dual-core Panda and Kaspersky Antiviruses.

Webserver Stress Tool 7.2.1.246
Webserver Stress Tool simulates any number of simultaneous users accessing a webserver. Just select the URLs of your server or web application, choose the number of users, and you are told how long your customers have to wait when visiting your website and how your webserver performs under heavy load. Works with all webservers, with full support for SSL.

ServerDefender AI 1.2.0
Prevent common, dangerous Web hacker attacks (like SQL injection, buffer overflows, cross-site scripting and request forgery, directory traversal, zero-day, brute force, and denial of service attacks) with this low-cost Microsoft IIS Web application firewall. Go beyond signatures with neural learning to whitelist good traffic and block new or unknown threats with advanced multi-server installation, reporting, and alerts. Free trial with support.