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firewall internet security - 9

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Contents

3.9 3 .10 3 .11 3 .12 4

Proprietary Protocols Peer-to-Peer Networking The X11 Window System The Small Services

68 69 70 71 73 74 79 85 89 91 91

T he Web: Threat or Menace? 4 .1 The Web Protocols 4 .2 Risks to the Clients 4 .3 Risks to the Server 4 .4 Web Servers vs. Firewalls 4 .5 The Web and Databases 4 .6 Parting Thoughts

II The Threats
5 C lasses of Attacks 5 .1 Stealing Passwords 5.2 Social Engineering 5 .3 Bugs and Back Doors 5 .4 Authentication Failures 5.5 Protocol Failures 5 .6 Information Leakage 5 .7 Exponential Attacks—Viruses and Worms 5 .8 Denial-of-Service Attacks 5 .9 Botnets 5 .10 Active Attacks T he Hacker's Workbench, and Other Munitions 6.1 Introduction 6 .2 Hacking Goals 6 .3 Scanning a Network 6 .4 Breaking into the Host 6 .5 The Battle for the Host 6 .6 Covering Tracks 6 .7 Metastasis 6 .8 Hacking Tools 6 .9 Tiger Teams

93
95 95 98 100 103 104 105 106 107 117 117 119 119 121 121 122 123 126 127 128 132

•

6

III

Safer Tools and Services
7 A uthentication 7.1 Remembering Passwords

135
137 138

Ještě nehodnoceno. Buďte první :-)

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