Four basic types of firewall protection exist--network level, circuit level, application-level and stateful multilayer. Each type has advantages and disadvantages, ranging from ease of implementation ...

Im running WinXP, and every once and awhile "Application Layer Gateway Service" will try to connect to the internet. My firewall then stops this. What I want to know is what this is, and why it is ...

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Security and networking platforms for large enterprises and data centers are rapidly evolving in sophistication and performance. In the security space, simple packet-filtering firewalls are evolving ...