Transcription of security - Geoff Huston
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1 2000, cisco Systems, Inc. NTW 2000 Network SecurityNetwork SecurityISOC NTW 2000 ISOC NTW 20002 2000, cisco Systems, Inc. NTW 200022000, cisco Systems, Inc. IntroductionIntroduction3 2000, cisco Systems, Inc. NTW 2000 Network security ComponentsNetwork security Components4 2000, cisco Systems, Inc. NTW 2000 ISP ExampleISP Example..Customer SiteISP Management Plane..T1 WWW DNS1 Pub1 TFTPDNS2 Pub 2 ISP Service PlaneForeignSiteInternet5 2000, cisco Systems, Inc. NTW 2000 Enterprise ExampleEnterprise ExampleProtectedNetworkEngineeringAdminF inanceDial-UpAccessBusinessPartnersDNSS erverWWWS erverInternet6 2000, cisco Systems, Inc.
NTW 2000 © 2000, Cisco Systems, Inc. 20 nmap • network mapper is a utility for port scanning large networks: TCP connect() scanning, TCP SYN (half open) scanning, TCP FIN, Xmas, or NULL (stealth) scanning,
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