A proxy server that inspects packets at the application layer. However, proxy servers must be manually configured, whereas application-level gateways (ALGs) typically perform their functions ...

Rise in number of different application layer attacks and surge in demand for secure networks drive the growth of the global application gateway market WILMINGTON, NEW CASTLE, DE, UNITED STATES, ...

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 ...

Rise in number of different application layer attacks and surge in demand for secure networks drive the growth of the global application gateway market. WILMINGTON, NEW CASTLE, DE, UNITED STATES, ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. This article dives into the happens-before ...

Network address translation and port address translation (NAT/PAT) originally were solutions for the depletion of the IPv4 addresses, and now are used by growing corporations to securely expand their ...

In my last column, I described an attack capable of passing through FireWall-1 to a supposedly protected port. Rumors that Cisco PIX was also vulnerable to such an attack turned out to be true. Cisco ...

This chapter introduces the reader to firewall load-balancing (FWLB) concepts, technology, and designs. We will talk about motivations behind FWLB solutions, different types of firewalls, and how to ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...