a network security exams in a nutshell pdf

... Trang 1Chapter 5 Network Security Protocols in Practice Part II Trang 2Chapter 5 Outline 5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at ...  Four phases:  Select cryptographic algorithms  Authenticate Server and Exchange Key  Authenticate Client and Exchange Key  Complete Handshake Trang 7Phase 1a: Client Hello Message1. Version ... DiagramTrang 16Chapter 5 Outline 5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer  5.4 SSL/TLS: Security Protocols at

Ngày tải lên: 06/03/2014, 16:20

... including that cookie Trang 26 ISAKMP: Internet Security Association and Key Management Protocol  Specifies key exchange formats  Each type of payload has the same form of a payload header Trang ... Authentication and Encryption use separate SAs IPsec Header Trang 21Authentication HeaderTrang 22Resist Message Replay AttackSequence number is used with a sliding window to thwart message replay attacks ... protocols:  Authentication header (AH)‏  To authenticate the origin of the IP packet and ensure its integrity  To detect message replays using sliding window  Encapsulating security payload (ESP)‏

Ngày tải lên: 06/03/2014, 16:20

... containing sensitive data out of the trash • Use a handheld device such as an iPod®, cell phone, or digital camera to suck data out of your system • Install a network tap and capture data going across ... set algorithm Then the software compares this value with a number stored in the data-base to approve or deny access Because the datadata-base stores a numerical value rather than an actual fingerprint ... firewalls A security barrier at each Layer protects against all kinds of attacks and provides complete network security Layer 1 security can loosely be defined as physical security—keeping persons

Ngày tải lên: 22/03/2014, 15:21

... utilizes available network bandwidth Data backups • A full backup backs up all the data in a single backup job • An incremental backup backs up the data that has changed after the last full or incremental ... incremental backup was taken • A differential backup backs up the data that has changed since the last fullbackup • A copy backup copies all the data on the system Hot and cold spares • Hot spares are ... layer firewalls work at the Application layer of the OSI model • They are also called application firewalls or application layer gateways • Application layer firewalls are much slower than packet

Ngày tải lên: 09/08/2014, 07:20

... Teams Network Security Standards Security Administration Software The importance of using a well-defined security policy, managed by a security team, as the basis for network security administration ... (teacher – institution – outer world) Support for teachers who are producing material Standardization including learning platforms, material modules meta data, student tion and economical aspects ... of Security Incident Response Teams and Standardization organizations are pre-sented together with examples of important network security standards and security administra-tion software The chapter

Ngày tải lên: 22/03/2014, 15:21

... sites Alternate sites are critical to all organizations that do not want any delay in restoration of data after a disaster strikes An alternate site is a temporary facility away from the original ... Organizations may store tapes loca-at another locloca-ation or can engage a third-party professional organizloca-ation for thepurpose It is important that administrators make an assessment that ... of the features available in Unix operating systems are also available inLinux Authentication Linux/Unix users must supply a username and password to logonto an authentication server A list of

Ngày tải lên: 09/08/2014, 07:20

... accomplished in a centralized or in a decentralized manner In a centralized method, all certificates and keys are stored in a ized location and managed from a single point of administration In largeorganizations, ... workstation is called the frontend Administration of database applications and servers usually requires separate database administrators who manage accesscontrol, authentication, and auditing of ... constitute an attackpattern If a match isdetected, an alert is generated so that administrators can take corrective action It Trang 22is important for administrators to keep the attack signature database

Ngày tải lên: 09/08/2014, 07:20

... authentication of data • A hashing algorithm, or a hash function, creates a unique digital fingerprintfrom data known as the hash value • If the original data changes, the hash function will produce a different ... traveling These laptops have confi-dential marketing information that needs to be protected You are afraid that if any of the laptops are stolen, the confidential data can be leaked and usedagainst ... back up, but restoration is fast • An incremental backup method backs up all the data that has changed afterthe last full or incremental backup and changes the archive bit • The last full backup

Ngày tải lên: 09/08/2014, 07:20

... existing data collection efforts generalizability In particular, it recognizes that an “ideal” training dataset may not be readily available in the beginning and argues strongly against attaining ... rbeltiukov@ucsb.edu UC Santa Barbara California, USA Wenbo Guo henrygwb@purdue.edu Purdue University Indiana, USA Arpit Gupta agupta@ucsb.edu UC Santa Barbara California, USA Walter Willinger wwillinger@niksun.com ... each new training dataset is informed by a root cause analysis of identified inductive bias(es) in the trained model This analysis leverages existing explainability tools that re-searchers have

Ngày tải lên: 06/03/2024, 17:26

... data packets each capable of transmitting 0 to 1023 bytes of data.  Data0  Data1 Data packets have the following format Sync PID Data CRC16 EOP  Handshake Packets There are three type of handshake ... a DATA packet containing the control data to be sent, a stall packet indicating the endpoint has had a error or a NAK packet indicating to the host that the endpoint is working, ... but temporary has no data to send IN DATA x ACK Data Error STALL NAK In Token Error Key OUT DATA x Host Function ACK NAK STALL Data Error Token Packet • Data Packet Handshake Packet OUT:

Ngày tải lên: 13/12/2013, 00:15

... fundamental measurement problems that occur when correlating per-capita investment, an intangible asset,and financial profit The database contains standardized information on training expenditures ... pursue a formal plan for moving a sale tangibly forward during eachprospect interaction, nor do they have a clearly defined set of goals against which to measuretheir progress toward a sale Instead, ... factors ● AN ORGANIZATIONAL CULTURE THAT SUPPORTS A CONSULTATIVE SALES PROCESS According to Jonathan Ledwidge, Director, Learning & Development, Financial Markets, ABNAMRO Bank, you can’t divorce

Ngày tải lên: 20/12/2013, 19:15

... The attacker could then perform a brute force attack on the password hashes in the database and access confidential data from user accounts External attacker scenario Internal attacker scenario ... forgotten network connection could potentially obtain information about your internal network If data cables are accessible, attackers can tap into them or attach listening devices that gather network ... physical security of a building, an external attacker could enter a facility unnoticed, locate an unattended computer, and load a Trojan horse application that sends keystrokes, including passwords,

Ngày tải lên: 21/12/2013, 19:15

... effect of increasing the attack surface available to an adversary an avenue that was taken advantage of in various Internet based attacks This section offers security configuration guidance for ... be re-installed Patch... Knowledge Base article 288358 for more information An additional safeguard can be made by disabling the storage of the LM hash in the local SAM database or Active ... Player, RealPlayer), BIND and Sendmail. UNCLASSIFIED 6 UNCLASSIFIED Know Your Network Developing and maintaining a list of all hardware devices and installed software is important to the security

Ngày tải lên: 14/02/2014, 08:20

... It also has theadvantage of being owned and operated by a company that knows a thing or two aboutalways-on availability! Those reasons alone make it a great place for a new IT infra-structure and ... the Internet and anotherfor routing packets among machines in the network 5 Finally, AWS created a default security group Security groups are a great way topartition machines from one another and ... an Amazon Machine Instance(AMI) That means if someone has already saved an OpenVPN AMI, for example, thenyou don’t have to do anything more than create a new server instance in the cloud based

Ngày tải lên: 17/02/2014, 08:20

... Cerame1, Marcello Vultaggio4, Giuseppe Calamusa1, Carmelo M Maida1and Francesco Vitale1 Abstract Background: Air pollution from vehicular traffic has been associated with respiratory diseases In ... of urban air pollution associated with a significant worsen-ing in the quality of life, especially in large metropolitan areas [25,26] In Sicily, the main island of the Mediterranean Sea, Palermo ... stations were based on estimating the missing value using the available measurements in the other monitoring stations on the same day, weighted by a fac-tor equal to the ratio of the annual mean

Ngày tải lên: 17/02/2014, 22:20

... TCATCAT-3¢; rOMM-64-IV, 5¢-CGCGGATCCGCCCCT GTTAATGATGGAACC-3¢ and 5¢-CGCCTCGAGCTAA GAAGACTGGGCTGCCAG-3¢; rOMM-64-V, 5¢-CGCGG ATCCAGGCAAGATTTTAAGCATCCA-3¢ and 5¢-CGCC TCCACCTAAGAGGCATCCTTGTCCAC-3¢; ... 5¢-CGCGGATCC ACCGTAGACACTTATGATATA-3¢ and 5¢-CGCCTCCA CCTAAGAGGCATCCTTGTCCAC-3¢; rOMM-64-II, 5¢-CGCCTCGAGCTAAGAGTCAGCTTGCACGTC-3¢; rOMM-64-III, 5¢-CGCGGATCCGCTGATGTGACCAGT GATGAC-3¢ and 5¢-CGCCTCGAGCTATTTGGGCTCTT ... and treated con-tamination in the total RNA was confirmed by lack of amplification of a b-actin mRNA fragment by PCR using a pair of primers (5¢-ATCACCATCGGCAACGAGAG-3¢ reverse transcription After

Ngày tải lên: 18/02/2014, 17:20

... demand as a critical factor, suggesting that leading companies see sustainability issues playing a larger role in shaping consumer perceptions, influencing purchasing decisions and creating a ... a landscape conducive to more sustainable business In the consumer goods industry, it is readily apparent that uncertainties regarding consumer demand, investor interest in sustainability and ... priorities and the complexities of integration Whilst many leading companies believe that sustainability issues are already integrated into their strategic thinking, they perceive a greater challenge in

Ngày tải lên: 18/02/2014, 21:20

... an external cooling pad. A cooling pad lifts the laptop above the table about one inch and has extra fans for cooling the bottom of the laptop. Make sure that the area where a laptop is operated ... servers and mainframe computers. It is extremely stable and reliable and provides several advantages over Microsoft’s Windows operating systems. Different variations of Linux are available as of ... computers. Apple has recently released the Intel version of MAC OS X that can be installed in place of Windows on Intel-based personal computers. The MAC OS has a GUI that looks similar to Windows and...

Ngày tải lên: 25/03/2014, 11:03

... months’ salary • CD burner = two weeks’ salary • Russian outdoor markets: – MS Operating System a few dollars • Hacking: more social approval? – Communal sharing culture Hacker Sites Site Map Main ̇ ... the playing field Criminal Communication • Public Web forums – Many no registration for read access – Meeting place for beginners, fearless criminals – Information sharing and “career building” – ... stack` [ h programming ] n. na many vstavk h as far as possible to korrumpirovat' the stack of the performance by way writing after the end of the automobile of that declared by block in...

Ngày tải lên: 14/03/2014, 20:20

... pushed against heat-sensitive paper called thermochromic paper or thermal paper. Some fax machines (except plain paper faxes) and calculators with printing capability use the thermal printing process. ... full installation installs all mandatory as well as optional components. If you are experienced in installa- tions, you can customize the installation using the custom installation option. Network ... known as the hardware abstraction layer (HAL.DLL). 2. The kernel initializes by creating a registry key known as HKEY_LOCAL_ MACHINE\HARDWARE. This key contains information about the hard- ware...

Ngày tải lên: 09/08/2014, 07:20