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Shields Up Port Scanning for Security - TelecomWorld 101
GRC | Gibson Research Corporation Home Page
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Mainframe Insecuritites or Hack the Gibson. No, Really!
Computer, Shields up! Shields Up is an online port scanning service created by Steve Gibson of Gibson Research Corporation and hosted at grc.com. - good captain picard - quickmeme
Port 0 on grc.com - Smart Home, Network & Security - Neowin