Cyan Secure Web Proxy Server is a carrier grade, high performance Internet filtering proxy server for Linux. It includes scalable (user/group/host) Web filter and virus scan utilities for blocking malicious applications at the gateway. It has an advanced URL database, authentication support (Active Directory, LDAP, NTLM), SSL Interception, easy deployment, and remote administration.
Bruteblock allows system administrators to block various bruteforce attacks on UNIX services. The program analyzes system logs and adds attackers' IP addresses into the ipfw2 table, effectively blocking them. Addresses are automatically removed from the table after specified amount of time. Bruteblock uses regular expressions to parse logs, which gives it enough flexibility to be used with almost any network service. Bruteblock doesn't use any external programs and works with ipfw2 tables via the raw sockets API.
FlowTuner is a program to manage employees' Internet activities. It allows you to set quotas for each employee or for whole departments. It can automatically disconnect employees from the Internet when the quota is reached. Managers can inspect the sites visited by employees and build Internet usage statistics reports.
NetOculus is a network monitoring system that provides all the functions of the well-known monitoring system MRTG. It also has a number of its own benefits. It can automatically monitor any kind of detectable alteration in a computer network (and in relatively separated network areas). It can efficiently notify staff about hardware state changes. Analytical information is aggregated. Specific pieces of hardware are associated with the staff members who responsible for them. The solutions for solved problems are reported to the staff for further use.