computer network internet security phần 2 ppt
computer network internet security phần 2 ppt
... storm,
although the computer system may be functional.
2. 2.4.4 MALICIOUS HACKERS
Hackers, sometimes called crackers, are a real and present danger to most
organizational computer systems linked by networks. ... internal
network is trivial.
2. 4.1 Protecting Services
2. 4.1.0 NAME SERVERS (DNS AND NIS(+))
The Internet uses the Domain Name System (DNS) to perform address resolution...
computer network internet security phần 1 pptx
... network such as the Internet.
iviv
2. 2.4 Common Threats 24
2. 2.4.0 Errors and Omissions 24
2. 2.4.1 Fraud and Theft 25
2. 2.4 .2 Disgruntled Employees 25
2. 2.4.3 Physical and Infrastructure 25
2. 2.4.4 ... manner.
ixix
9 .2. 3 Domains 21 7
9 .2. 4 NT Registry 21 7
9 .2. 5 C2 Security 21 8
9.3 NT SECURITY MODEL 21 9
9.3.0 LSA: Local Security Authority 21 9
9.3.1 S...
computer network internet security phần 3 pptx
... demonstrate that the
tests adequately cover the network security policy.
2. 15 .2 Summary
The application of C2 standards in both the standalone and network environment
has specific implications. ... retrieve the computer.
2. 13.3 Strategies to Minimize Computer Theft
Computer theft cannot be eliminated, but can be reduced by implementing a few simple
strategies.
2. 13.3.0 APPO...
computer network internet security phần 5 ppt
... 19 528
Fragmentation Flags: %010 Do Not Fragment
Fragment Offset: 0
Time To Live: 25 5
IP Type: 0x06 TCP
Header Checksum: 0xdde2
Source IP Address: 1 92. 246 .25 4.153
Dest. IP Address: 129 .170.16.79
... Password:
rmasey @network- 1 72 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 RE...
computer network internet security phần 9 ppt
... firewall
concepts, network security concepts, advanced network security technologies
and security management must be undertaken. Failure to provide adequate
26 926 9
Appendix H: Network Terms Glossary
AAL ... Ethernet/8 02. 3 frame that does not end on a “byte-
boundary.”
26 226 2
Appendix E: Types of Attacks
ATTACK NAME SYMPTOMS DESCRIPTION NOTES
Boink (similar to
Bonk, Teardro...
computer network internet security phần 4 pdf
... threat
8989
Section 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 Security. ,
Federal ... 21 9 -23 0.
Wood, Charles Cresson. "Designing Corporate Information Security Policies." DATAPRO
Reports on Information Security, April 19 92.
2. 4 Guideline f...
computer network internet security phần 6 pps
... total network solution -
they remain a single level in security management of network environments. True,
functional network security must be a layered approach and use different types of
security ... or server.
Adding server-based network security firewall software allows a final layer of
network security prior to reaching the server operating environment:
Internet
Rout...
computer network internet security phần 7 ppsx
... this new threat.
20 220 2
8.0 Virtual Private Networks: Introduction
8.1 Making Sense of Virtual Private Networks
The VPN market is on the verge of explosive growth. A virtual private network (VPN)
broadly ... Purdue
Technical Report CSD-TR- 823 , Nov 28 , 1988.
20 920 9
Because SOCKS v5 and SSL operate at the session layer, they have the unique
ability to interoperate on top of IPv4, IP...
computer network internet security phần 8 docx
... 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, in the Trusted
Computer ... command
the “lastcomm” command
the “/var/log/syslog” file
the “netstat” command
22 022 0
Figure 2: NT Security Model
9.3.1 SAM: Security Account Manager
The SAM manages a database...
computer network internet security phần 10 pot
... Greek symbol,
3 123 12
V. 42 bis ITU-T standard that enhances V. 42 by incorporating the British Telecom
Lempel Ziv data compression technique to V. 42 error correction. Most V. 32, V. 32
bis, and V.34 ... allows systems or network manager to restrict
access to components on a network. Five generally accepted types of firewalls are
28 228 2
DTE-to-DCE Rate The speed at which a compu...
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