"external network" tag

Going Virtual With OpenVZ

This article is an introduction to OpenVZ, an open source container-based virtualisation solution for Linux. In computing, virtualisation is the creation of a virtual version of a hardware platform, operating system, storage or…

Firewall Scan

Advanced Nmap: Scanning Firewalls

After four articles on Nmap [1, 2, 3 & 4], which explained a number of command-line options for scan technique specification, target specification, port specifications, host discovery, evasion techniques, etc, it is time…

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