computer network internet security phần 6 pps

... Government’s Capstone project 1 561 56 At this point, the security manager would be wise to insert some duplicate security rules into the router filter rule base and the firewall security rule base for ... predisposed that there is a real firewall in the network path BEFORE the system being accessed (running network security firewall software) 164 164 to access the corporate fa...

Ngày tải lên: 14/08/2014, 18:20

... second example concerns the incident whereby a network worm used the collection of networks known as the Internet to spread itself to several thousands of computers located throughout the United States. ... Special Publication 500- 166 . U.S Dept of Commerce BUNZEL88 Bunzel, Rick; Flu Season; Connect, Summer 1988. DENNING88 Denning, Peter J.; Computer Viruses; American Scientist, Vol 76...

Ngày tải lên: 14/08/2014, 18:20

... 120 0. 36 picosecond 10 3 ,62 8,800 12 microseconds 15 1.3 × 10 12 4.4 seconds 20 2.4 × 10 18 94 days 25 1 .6 × 10 25 1 .6 million years 30 2.7 × 10 32 2.8 × 10 13 years And this is with a computer ... nameserver a computer whose job is to translate names into IP ADDRESSES for other computers. Most computers on the Internet do not contain their own directories of the whole network...

Ngày tải lên: 14/08/2014, 17:21

... SECURITY THREATS 260 APPENDIX E: TYPES OF ATTACKS 262 APPENDIX F: TOP 10 SECURITY PRECAUTIONS 265 APPENDIX G: VIRUS GLOSSARY 266 APPENDIX H: NETWORK TERMS GLOSSARY 269 161 6 2.0 Security 2.1 Security ... Check List 65 2.10.0.0 Basic levels of network access: 65 2.10.1 Auditing the Process 65 2.10.2 Evaluating your security policy 66 2.11 PC SECURITY 66 2.12 ACC...

Ngày tải lên: 14/08/2014, 18:20

... best to collaborate with other technical and computer security personnel to make a decision as a group about whether an incident is occurring. 2 .6. 6 Types and Scope of Incidents Along with the ... the event of a security breach. 2.5 Auditing This section covers the procedures for collecting data generated by network activity, which may be useful in analyzing the security of a net...

Ngày tải lên: 14/08/2014, 18:20

... deliveries to and from 868 6 standards as the may be applied to a network. The Red Book places responsibility for the security of the network not on a manufacturer, but on the network& apos;s sponsor. This ... systems environment. 69 69 2.13.1 Areas of Vulnerability and Safeguards. 2.13.1.0 PERIMETER SECURITY Minimizing Perimeter Security Vulnerabilities Examining the perimeter s...

Ngày tải lên: 14/08/2014, 18:20

... "Establishing a System Security Policy." Foiling the System Breakers. New York, NY:McGraw-Hill, 19 86. pp. 57-95. Menkus, B. "Concerns in Computer Security. " Computers and Security. 11(3), ... References 2.1 Fraser, B. ed. RFC 21 96. Site Security Handbook. Network Working Group, September 1997. Chapter 2. 2.2 Guideline for the Analysis Local Area Network Sec...

Ngày tải lên: 14/08/2014, 18:20

... 1 768 8 Checksum: 0xf86c Urgent Pointer: 0 No TCP Options FTP Control - File Transfer Protocol FTP Command: 0x50415353 (PASS) Password Password: rmasey @network- 1 72 6d 61 73 65 79 40 6e 65 ... 6d 61 73 65 79 40 6e 65 74 77 6f 72 6b 2d 31 .com 2e 63 6f 6d Newline Sequence: 0x0d0a Frame Check Sequence: 0x06c1fd4a 5.5.3.5 DNS AND MAIL RESOLUTION On the Internet, the Domain Name...

Ngày tải lên: 14/08/2014, 18:20

... correct authorization. NT Security Subsystem The Windows NT security model is based on the following components: Local Security Authority (LSA) Security Account Manager (SAM) Security Reference Monitor ... hierarchy. 9.2.5 C2 Security Requirements for a C2 compliant system are defined by the National Computer Security Center (NCSC) of the United States Department of Defense, i...

Ngày tải lên: 14/08/2014, 18:20

... firewall concepts, network security concepts, advanced network security technologies and security management must be undertaken. Failure to provide adequate 269 269 Appendix H: Network Terms Glossary AAL ... equipment company (LEC) 266 266 Appendix G: Virus Glossary Back Door: An entry to a program, or system created by its designer to allow special access; often without prope...

Ngày tải lên: 14/08/2014, 18:20