Chapter 2: Attackers and Their Attacks
... TCP/IP Hijacking (continued) Certain types of local area networks (LANs), such as Ethernet, must also have another address, called the media access control (MAC) address, to move information around the network Computers on a network keep a table that links an IP address with the corresponding add ...
... TCP/IP Hijacking (continued) Certain types of local area networks (LANs), such as Ethernet, must also have another address, called the media access control (MAC) address, to move information around the network Computers on a network keep a table that links an IP address with the corresponding add ...
37 hours p/w - term time plus 3 weeks
... Install and maintain network cabling; perform advanced diagnostic and recovery routines on network equipment; configure network infrastructure with appropriate server information and software Maintain a comprehensive database of all support requests Be responsible for maintenance and first line repa ...
... Install and maintain network cabling; perform advanced diagnostic and recovery routines on network equipment; configure network infrastructure with appropriate server information and software Maintain a comprehensive database of all support requests Be responsible for maintenance and first line repa ...
ch 11 Data Network Connectivity
... V.90 defines 56 Kbps, asymmetrical transmission in which one of the modems is assumed to be using a digital line. V.92 improves upon V.90 by increasing the upstream transmission rate to a maximum of 48 Kbps. V.92 also accomplishes faster session negotiation because modems using this standard keep a ...
... V.90 defines 56 Kbps, asymmetrical transmission in which one of the modems is assumed to be using a digital line. V.92 improves upon V.90 by increasing the upstream transmission rate to a maximum of 48 Kbps. V.92 also accomplishes faster session negotiation because modems using this standard keep a ...
Data Network Connectivity
... V.90 defines 56 Kbps, asymmetrical transmission in which one of the modems is assumed to be using a digital line. V.92 improves upon V.90 by increasing the upstream transmission rate to a maximum of 48 Kbps. V.92 also accomplishes faster session negotiation because modems using this standard keep a ...
... V.90 defines 56 Kbps, asymmetrical transmission in which one of the modems is assumed to be using a digital line. V.92 improves upon V.90 by increasing the upstream transmission rate to a maximum of 48 Kbps. V.92 also accomplishes faster session negotiation because modems using this standard keep a ...
090911_KW-LTESecurity-VzW-01
... – Easy to get authentication from home network while in visited network without having to handle Ki ...
... – Easy to get authentication from home network while in visited network without having to handle Ki ...
Discovery service
... Reduces amount of data to be transmitted (by translating HTTP headers from text into binary). Allows sessions to be suspended and resumed. Provides reliable datagram service without the unnecessary overhead of TCP. TCP stack is not required on handheld device. WAP protocol stack requires l ...
... Reduces amount of data to be transmitted (by translating HTTP headers from text into binary). Allows sessions to be suspended and resumed. Provides reliable datagram service without the unnecessary overhead of TCP. TCP stack is not required on handheld device. WAP protocol stack requires l ...
Mobile Applications
... himself now as Apple vice president of mobile advertising. A price wasn't named, but AllThingsD reported that it's $275 million when it broke the news on Monday. “This year's International Consumer Electronics Show (CES) was all about wireless. In fact, wireless was probably the most pervasive of al ...
... himself now as Apple vice president of mobile advertising. A price wasn't named, but AllThingsD reported that it's $275 million when it broke the news on Monday. “This year's International Consumer Electronics Show (CES) was all about wireless. In fact, wireless was probably the most pervasive of al ...
Network and Perimeter Security
... Virtual Private Networking: What Are the Challenges? VPNs provide a secure option for communicating across a public network VPNS are used in two primary scenarios: Network access for remote clients Network access between sites VPN quarantine control provides an additional level of security by provi ...
... Virtual Private Networking: What Are the Challenges? VPNs provide a secure option for communicating across a public network VPNS are used in two primary scenarios: Network access for remote clients Network access between sites VPN quarantine control provides an additional level of security by provi ...
Security in Wireless LANs
... Can alleviate network deployment costs Solve some installation problems of older structures (asbestos) Essentially an unlimited number of points for attacking ...
... Can alleviate network deployment costs Solve some installation problems of older structures (asbestos) Essentially an unlimited number of points for attacking ...
Analysing the impact of various wireless network conditions on the
... • Statistical analysis using Student’s T-Test, ANOVA & HSD ...
... • Statistical analysis using Student’s T-Test, ANOVA & HSD ...
Overlay Network and Data Transmission over Wireless
... New service (anycast etc) Disadvantages Efficiency Latency How many nodes need to be modified? What if one day the underlying network changes to support all the functionalities? ...
... New service (anycast etc) Disadvantages Efficiency Latency How many nodes need to be modified? What if one day the underlying network changes to support all the functionalities? ...
5: Network Security
... Hard to do, not many effective techniques Packet filtering has to be done How to detect, what to throw? Fooling DoS detectors can cause DoS attacks ...
... Hard to do, not many effective techniques Packet filtering has to be done How to detect, what to throw? Fooling DoS detectors can cause DoS attacks ...
Protocol Overview
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
Certified Wireless Network Administrator (CWNA) PW0-105
... • May support 802.11n HT technology or only legacy transmission methods ...
... • May support 802.11n HT technology or only legacy transmission methods ...
1998-10-16-MAEDS-NetSecurity
... Okay, so now you are worried! Research your operating systems on the net Subscribe to Bug-Traq and other listserves The best way to know that you are secure is to hack your own network! it would be in your best interests to get someone to audit your security. If you don’t, someone will! • Always kee ...
... Okay, so now you are worried! Research your operating systems on the net Subscribe to Bug-Traq and other listserves The best way to know that you are secure is to hack your own network! it would be in your best interests to get someone to audit your security. If you don’t, someone will! • Always kee ...
What is a VPN
... frames, which in turn encapsulate IP, IPX, or NetBEUI protocols With L2TP, the computer performs all security checks and validations, and enables data encryption, which makes it much safer to send information over nonsecure networks by using the new Internet Protocol security (IPSec) In this case da ...
... frames, which in turn encapsulate IP, IPX, or NetBEUI protocols With L2TP, the computer performs all security checks and validations, and enables data encryption, which makes it much safer to send information over nonsecure networks by using the new Internet Protocol security (IPSec) In this case da ...
What is a VPN
... frames, which in turn encapsulate IP, IPX, or NetBEUI protocols With L2TP, the computer performs all security checks and validations, and enables data encryption, which makes it much safer to send information over nonsecure networks by using the new Internet Protocol security (IPSec) In this case da ...
... frames, which in turn encapsulate IP, IPX, or NetBEUI protocols With L2TP, the computer performs all security checks and validations, and enables data encryption, which makes it much safer to send information over nonsecure networks by using the new Internet Protocol security (IPSec) In this case da ...
Internal Networks and Physical Attacks
... their networks and hosts against unauthorized use. To accomplish this, a network device or software agent is placed on critical segments of the network. The device monitors the network traffic and identifies activity that matches suspicious or attack signatures. Once a suspicious or malicious attack ...
... their networks and hosts against unauthorized use. To accomplish this, a network device or software agent is placed on critical segments of the network. The device monitors the network traffic and identifies activity that matches suspicious or attack signatures. Once a suspicious or malicious attack ...
Basic Networking Hardware - Super Substitute Teachers
... A local area network that transmits over the air typically in an unlicensed frequency such as the 2.4GHz band. A wireless LAN does not require lining up devices for line of sight transmission. Wireless access points (base stations) are connected to an Ethernet hub or server and transmit a radio freq ...
... A local area network that transmits over the air typically in an unlicensed frequency such as the 2.4GHz band. A wireless LAN does not require lining up devices for line of sight transmission. Wireless access points (base stations) are connected to an Ethernet hub or server and transmit a radio freq ...
Chapter 7 Wireless - Lone Star College System
... • An access point is a Layer 2 device that functions like an 802.3 Ethernet hub. • Connects wireless clients (or stations) to the wired LAN. • Client devices communicate with the AP – not each other. • Converts the TCP/IP data packets from their 802.11 frame encapsulation to the 802.3 Ethernet frame ...
... • An access point is a Layer 2 device that functions like an 802.3 Ethernet hub. • Connects wireless clients (or stations) to the wired LAN. • Client devices communicate with the AP – not each other. • Converts the TCP/IP data packets from their 802.11 frame encapsulation to the 802.3 Ethernet frame ...
Fraud Committee Briefing for TFO Day 2
... about that in more detail in today’s briefing for Day 2, and for Day 5 There is now also a forensic element to each of the Days But Jan’s point is also well taken, that our certification has to be of professional practices, rather than software instruction The training is going to focus on fundament ...
... about that in more detail in today’s briefing for Day 2, and for Day 5 There is now also a forensic element to each of the Days But Jan’s point is also well taken, that our certification has to be of professional practices, rather than software instruction The training is going to focus on fundament ...
Wireless security
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Wireless security is the prevention of unauthorized access or damage to computers using wireless networks. The most common types of wireless security are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WEP is a notoriously weak security standard. The password it uses can often be cracked in a few minutes with a basic laptop computer and widely available software tools. WEP is an old IEEE 802.11 standard from 1999, which was outdated in 2003 by WPA, or Wi-Fi Protected Access. WPA was a quick alternative to improve security over WEP. The current standard is WPA2; some hardware cannot support WPA2 without firmware upgrade or replacement. WPA2 uses an encryption device that encrypts the network with a 256-bit key; the longer key length improves security over WEP.Many laptop computers have wireless cards pre-installed. The ability to enter a network while mobile has great benefits. However, wireless networking is prone to some security issues. Hackers have found wireless networks relatively easy to break into, and even use wireless technology to hack into wired networks. As a result, it is very important that enterprises define effective wireless security policies that guard against unauthorized access to important resources. Wireless Intrusion Prevention Systems (WIPS) or Wireless Intrusion Detection Systems (WIDS) are commonly used to enforce wireless security policies.The risks to users of wireless technology have increased as the service has become more popular. There were relatively few dangers when wireless technology was first introduced. Hackers had not yet had time to latch on to the new technology, and wireless networks were not commonly found in the work place. However, there are many security risks associated with the current wireless protocols and encryption methods, and in the carelessness and ignorance that exists at the user and corporate IT level. Hacking methods have become much more sophisticated and innovative with wireless access. Hacking has also become much easier and more accessible with easy-to-use Windows- or Linux-based tools being made available on the web at no charge.Some organizations that have no wireless access points installed do not feel that they need to address wireless security concerns. In-Stat MDR and META Group have estimated that 95% of all corporate laptop computers that were planned to be purchased in 2005 were equipped with wireless cards. Issues can arise in a supposedly non-wireless organization when a wireless laptop is plugged into the corporate network. A hacker could sit out in the parking lot and gather information from it through laptops and/or other devices, or even break in through this wireless card–equipped laptop and gain access to the wired network.