What is a next generation firewall (NGFW)? A next generation firewall, or NGFW, monitors and analyzes traffic at the packet level. It provides application-level visibility to detect...
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What is a firewall? A firewall is a security system for devices connected to a network. It protects the devices and data from outside attacks by restricting access to only those who are allowed...
The Ping of Death: A Guide to Network Security Ping of death is a malicious way to deny service to a networked device such as a computer. It can be done by sending an oversized ping packet that...
Ping Spoofing Ping spoofing is the practice of sending internet packets with a forged sender address. It can be used to do something as simple as testing your network for vulnerabilities, or it...
What is VM Escape? Are you by any chance a manager in shared computing environments for multiple customers, and you get worried about one of your customers accessing virtual machines of the other...
What is Split Horizon Networking? Did you know that around 1974, Torsten Cegrell suggested the concept of the split-horizon in networking? It was then implemented originally in the...