Internet intruders have many ingenious ways of escalating privileges and hiding their presence once they get inside your system. The best protection is to keep them out in the cold.

Astaro Corporation, a leading manufacturer of unified threat management (UTM) security appliances, today announced the beta availability of version 7.1 of its Astaro Security Gateway software appliance. The latest release of Astaro's
security platform offers a range of innovations, including advanced web filtering based on a new HTTP proxy which allows for extended functionality and performance improvements. Astaro has also launched its new beta program for Astaro Security Gateway.

Development of the new version of the Gibraltar security software took more than a year. The release of Gibraltar 2.5 sees enhanced functionality and simplified use.

Collax has released an update to version 4.2 of its Security Gateway solution. The Unified Threat Management solution (UTM) is now based on kernel 2.6.

Firewalls are becoming evermore sophisticated. Luckily, the tools for managing firewalls are becoming simpler and more accessible for ordinary users

When users think about their workstations at home, they often forget about security. But danger is out there,waiting to pounce on the unsuspecting. Shorewall helps everyday Linux users keep the intruders away.

If you think your systems are too obscure for an attacker to worry about, think again. Today’s intruders are happy for any victim.

It is quite easy to take a TCP connection down using a RST attack, and this risk increases with applications that need long-term connections, such as VPNs, DNS zone transfers, and BGP. We’ll describe how a TCP attack can happen, and we’ll show you some simple techniques for protecting your network.