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방화벽의 구조 : 네이버 블로그
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Novell Doc: Novell BorderManager 3.9 Proxy and Firewall Overview and Planning Guide - Firewall Technologies
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IEC 60050 - International Electrotechnical Vocabulary - Details for IEV number 732-06-04: "screening router"
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WWW Security Mock Site - Gateway
Network firewall - Computing and Software Wiki
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Enterprise Network Roles - Junos Enterprise Routing, 2nd Edition [Book]
Screening Router (Filter Router)
Firewalls Convencionales | Textos Científicos
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Chapter 6] Packet Filtering
Firewall topologies (Screened Host vs Screened Subnet vs Dual Homed Host) - Information Security Stack Exchange
Example Firewall Configurations
Screened subnet - Wikipedia
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PPT - Firewall Configuration Strategies PowerPoint Presentation, free download - ID:376020
I. Background of Firewall | IT Services
