Bảo mật hệ thống mạng part 5 ppsx

... difficult. Making multiple copies of the information and distributing the copies to interested parties makes it difficult to successfully change all of the documents at the same time. Chapter ... exists. For paper files, the physical paper file must be protected. The physical file must exist at a particular location; therefore, access to this location must be controlled. The confidentiality ....

Ngày tải lên: 02/07/2014, 18:20

... individuals. Vulnerability Scanning Scanning computer systems for vulnerabilities is an important part of a good security program. Such scanning will help an organization to identify potential entry ... cannot be the all-encompassing solution. Anti-Virus Software Anti-virus software is a necessary part of a good security program. If properly imple - mented and configured, it can reduce an...

Ngày tải lên: 02/07/2014, 18:20

... or a network within the control of the organization. What if the file is to be copied to other parties or organizations? In this case, it is clear that the access controls on a single computer ... signature was created. In order to be worthwhile, the digital signature must be identified with a particular user; thus, the integrity service must work with the identifica - tion and authentication...

Ngày tải lên: 02/07/2014, 18:20

... files: hosts.allow: #Allow telnets from my internal network (10.1.1.x) in.telnet: 10.1.1.0/ 255 . 255 . 255 .0 #Allow ftp from the world in.ftpd: 0.0.0.0/0.0.0.0 hosts.deny: #Deny telnets from anywhere ... address>/<network mask> CHAPTER 15 Unix Security Issues 2 85 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Terms of Use. Chapter 15: Unix Security Issues 287 Mak...

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... file (or a macro for that matter) allows Appendix B: Unix vs. Windows: Which Is More Secure? 355 354 Network Security: A Beginner’s Guide T he debate about which operating system is more secure ... no-brainer. But where do we draw the line between operating system and application? Is RPC part of Unix? Is Explorer part of Windows? In many cases, it is not so simple to separate out the...

Ngày tải lên: 02/07/2014, 18:20

... access would be denied. This concept of modeling eventually lead to United States Department of Defense Standard 52 00.28, The Trusted Computing System Evaluation Criteria (TCSEC, also Figure 1-2. Electronic ... well as assur - ance requirements. Thus, in order for a system to meet the qualifications for a particular level of certification it had to meet the functional and the assurance requ...

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... office Mainframe Figure 2-1. Places where access attacks can occur CHAPTER 2 Types of Attacks 15 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Terms of Use. B ad things can happen ... information is found. Eavesdropping When someone listens in on a conversation that they are not a part of, that is eavesdrop - ping. To gain unauthorized access to information, an attacker mu...

Ngày tải lên: 02/07/2014, 18:20

... by the electronic mail system to verify the identity of the sender. Chapter 2: Types of Attacks 25 Chapter 2: Types of Attacks 21 MODIFICATION ATTACKS A modification attack is an attempt to modify

Ngày tải lên: 02/07/2014, 18:20

... specific questions about a particular statute, consult your organiza - tion’s general counsel or local law enforcement. Chapter 4: Legal Issues in Information Security 45 Figure 4-1. U.S. states ... defines the crime as the intentional access of a computer without authorization to do so. A second part of the statute adds that the individual accessing the computer has to obtain information...

Ngày tải lên: 02/07/2014, 18:20

... specific questions about a particular statute, consult your organiza - tion’s general counsel or local law enforcement. Chapter 4: Legal Issues in Information Security 45 Figure 4-1. U.S. states ... representatives of the foreign government (at an embassy or consulate) or by contacting the FBI. 50 Network Security: A Beginners‘s Guide State Specific Computer Crimes Notes Wisconsin Offense...

Ngày tải lên: 02/07/2014, 18:20