Introduction
... Local Area Networks • Local area networks (LANs) connect computers within a building or a enterprise network • Almost all LANs are broadcast networks • Typical topologies of LANs are bus or ring or star • We will work with Ethernet LANs. Ethernet has a bus or star topology. ...
... Local Area Networks • Local area networks (LANs) connect computers within a building or a enterprise network • Almost all LANs are broadcast networks • Typical topologies of LANs are bus or ring or star • We will work with Ethernet LANs. Ethernet has a bus or star topology. ...
Internet Firewalls:
... 2.3 What can a firewall protect against? Some firewalls permit only email traffic through them, thereby protecting the network against any attacks other than attacks against the email service. Other firewalls provide less strict protections, and block services that are known to be problems. Generall ...
... 2.3 What can a firewall protect against? Some firewalls permit only email traffic through them, thereby protecting the network against any attacks other than attacks against the email service. Other firewalls provide less strict protections, and block services that are known to be problems. Generall ...
cs591report
... fastest (and broadest) paths possible. Driving through town may be shorter, but having to stop at multiple lights could take far longer than utilizing a by-pass. This brings us to another criteria for the solution: Proxies with higher QoS (less delay, more bandwidth) should be considered first. Qual ...
... fastest (and broadest) paths possible. Driving through town may be shorter, but having to stop at multiple lights could take far longer than utilizing a by-pass. This brings us to another criteria for the solution: Proxies with higher QoS (less delay, more bandwidth) should be considered first. Qual ...
this section - PDF
... managed switch allows you to take control of your network. An unmanaged switch will simply allow Ethernet devices to communicate. You connect your Ethernet devices to the unmanaged switch and they usually communicate automatically. There will be status LEDs to give you some feedback regarding link a ...
... managed switch allows you to take control of your network. An unmanaged switch will simply allow Ethernet devices to communicate. You connect your Ethernet devices to the unmanaged switch and they usually communicate automatically. There will be status LEDs to give you some feedback regarding link a ...
Lesson 9 - EdTechnology, educational technology
... LANs are smaller networks limited in geographic area. Many LANs connected together allow the Internet to function. But LANs have limitations in scale. Although there have been technological advances to improve the speed of communications, such as Metro Optical, Gigabit, and 10Gigabit Ethernet, dista ...
... LANs are smaller networks limited in geographic area. Many LANs connected together allow the Internet to function. But LANs have limitations in scale. Although there have been technological advances to improve the speed of communications, such as Metro Optical, Gigabit, and 10Gigabit Ethernet, dista ...
Slide 1
... Segmenting a Network • Decreases amount of traffic on overall network • Done through use of bridges and switches – More intelligent than hubs; make decisions about whether or not to allow traffic to pass, or where to forward that traffic – Use MAC addresses, which they store in routing tables, to d ...
... Segmenting a Network • Decreases amount of traffic on overall network • Done through use of bridges and switches – More intelligent than hubs; make decisions about whether or not to allow traffic to pass, or where to forward that traffic – Use MAC addresses, which they store in routing tables, to d ...
About the Presentations
... One-Time Password Software • Two types of one-time passwords are available: – Challenge-response passwords • Authenticating computer or firewall generates a random number (the challenge) and sends it to the user, who enters a secret PIN or password (the ...
... One-Time Password Software • Two types of one-time passwords are available: – Challenge-response passwords • Authenticating computer or firewall generates a random number (the challenge) and sends it to the user, who enters a secret PIN or password (the ...
Designing a Rate-based Transport Protocol for
... the underlying infrastructure. Techniques like Explicit Loss Notification (ELN) [10] and Explicit Congestion Notification (ECN) [11] can be integrated into an end-to-end approach to provide almost perfect knowledge of the cause of a loss. However, such an approach requires wide-scale updation of rou ...
... the underlying infrastructure. Techniques like Explicit Loss Notification (ELN) [10] and Explicit Congestion Notification (ECN) [11] can be integrated into an end-to-end approach to provide almost perfect knowledge of the cause of a loss. However, such an approach requires wide-scale updation of rou ...
Charlie Cheng
... Symbian OS and J2ME. Also developed carrier level service platform based on J2EE and XML over SQL database for the controlling and management of the remote test probes. • Led and developed consumer broadband wireless router utilizing IEEE 802.11 (Wi-Fi) standard in both DSS and FH RF modulation ra ...
... Symbian OS and J2ME. Also developed carrier level service platform based on J2EE and XML over SQL database for the controlling and management of the remote test probes. • Led and developed consumer broadband wireless router utilizing IEEE 802.11 (Wi-Fi) standard in both DSS and FH RF modulation ra ...
Linux+ Guide to Linux Certification
... • Description: The Microsoft Windows redirector is one example of the Application layer (Layer 7) at work. In this activity, you view computers, shared folders, and shared printers through a Microsoftbased network, which are made accessible, in part, through the redirector. Your network needs to hav ...
... • Description: The Microsoft Windows redirector is one example of the Application layer (Layer 7) at work. In this activity, you view computers, shared folders, and shared printers through a Microsoftbased network, which are made accessible, in part, through the redirector. Your network needs to hav ...
paper - IJANA International Journal of Advanced Networking And
... communicating with each other without the use of a network infrastructure or any centralized administration. Due to open medium, dynamic topology, distributed cooperation, constrained capabilities ad hoc networks are vulnerable to many types of security attacks; one such attack is rushing attack. It ...
... communicating with each other without the use of a network infrastructure or any centralized administration. Due to open medium, dynamic topology, distributed cooperation, constrained capabilities ad hoc networks are vulnerable to many types of security attacks; one such attack is rushing attack. It ...
Manual
... This full rate Wireless ADSL2+ router is an all-in-one gateway for Home and SOHO applications. This gateway is with full-featured ADSL router that provides high-speed Internet access, 4-port Ethernet switch direct connections to individual PCs or local area network with 10/100 Base-T Ethernet and 54 ...
... This full rate Wireless ADSL2+ router is an all-in-one gateway for Home and SOHO applications. This gateway is with full-featured ADSL router that provides high-speed Internet access, 4-port Ethernet switch direct connections to individual PCs or local area network with 10/100 Base-T Ethernet and 54 ...
Barometric Pressure, Temperature + Humidity iServer by OMEGA
... Award-winning Technology: The iServer is simple to install and use. It features awardwinning technology that requires no special software except a Web Browser. The iServer connects to an Ethernet Network with a standard RJ45 connector and sends data in standard TCP/IP packets. It is easily configur ...
... Award-winning Technology: The iServer is simple to install and use. It features awardwinning technology that requires no special software except a Web Browser. The iServer connects to an Ethernet Network with a standard RJ45 connector and sends data in standard TCP/IP packets. It is easily configur ...
6. future work - Computer Science
... MOS kernel, although the design does not preclude adding them in the future. In addition to driver threads and user threads, there is also an idle thread created by the kernel at startup. The idle thread has low priority and runs when all other threads are blocked. The idle thread is in a position t ...
... MOS kernel, although the design does not preclude adding them in the future. In addition to driver threads and user threads, there is also an idle thread created by the kernel at startup. The idle thread has low priority and runs when all other threads are blocked. The idle thread is in a position t ...
Troubleshooting Your Network
... ISR Router to the ISP Problems Wired and Wireless devices can connect to each other, but not the Internet . . . Why?? May be a connection between the access point and the ISP – check out the router status page – check physical connections (including indicator lights) – verify passwords – may be ...
... ISR Router to the ISP Problems Wired and Wireless devices can connect to each other, but not the Internet . . . Why?? May be a connection between the access point and the ISP – check out the router status page – check physical connections (including indicator lights) – verify passwords – may be ...
Passive Online Rogue Access Point Detection Using Sequential
... The deployment of IEEE 802.11 wireless networks (WLANs) has been growing at a remarkable rate during the past several years. The presence of a wireless infrastructure within a network, however, raises various network management and security issues. One of the most challenging issues is rogue access ...
... The deployment of IEEE 802.11 wireless networks (WLANs) has been growing at a remarkable rate during the past several years. The presence of a wireless infrastructure within a network, however, raises various network management and security issues. One of the most challenging issues is rogue access ...
Kyocera KR1 Mobile Router
... designed for use with both your 802.11b and 802.11g products. It is compatible with all 802.11g and 802.11b adapters, such as the notebook adapters for your laptop computers, PCI adapters for your desktop PCs, and USB adapters when you want to enjoy USB connectivity, WiFi / Skype phone to communicat ...
... designed for use with both your 802.11b and 802.11g products. It is compatible with all 802.11g and 802.11b adapters, such as the notebook adapters for your laptop computers, PCI adapters for your desktop PCs, and USB adapters when you want to enjoy USB connectivity, WiFi / Skype phone to communicat ...
SmartConnect WINC1500 Wireless Network Controller
... The WINC1500 uses an innovative power architecture that delivers very low power consumption along with high ...
... The WINC1500 uses an innovative power architecture that delivers very low power consumption along with high ...
World Wide WAP - Information Systems and Internet Security
... Unreliable one-way requests (class 0) Reliable one-way requests (class 1) Reliable two-way request-reply (class 2) ...
... Unreliable one-way requests (class 0) Reliable one-way requests (class 1) Reliable two-way request-reply (class 2) ...
FiOS Quantum Gateway
... when your Gateway is turned on, connected to the Internet, and functioning normally. The Wireless light will be on when your Gateway Wi-Fi is turned on. For additional information on the front lights and error indications, refer the Troubleshooting section in this Guide. The WPS button is used to in ...
... when your Gateway is turned on, connected to the Internet, and functioning normally. The Wireless light will be on when your Gateway Wi-Fi is turned on. For additional information on the front lights and error indications, refer the Troubleshooting section in this Guide. The WPS button is used to in ...
wireless-mod8-Security
... any money or status off your data. It's just wrong to expect these people to reward you for pointing out their own stupidity. 5. Be like the hiker motto of 'take only pictures, leave only footprints': Detecting SSID's and moving on is legal, anything else is irresponsible to yourself and your commun ...
... any money or status off your data. It's just wrong to expect these people to reward you for pointing out their own stupidity. 5. Be like the hiker motto of 'take only pictures, leave only footprints': Detecting SSID's and moving on is legal, anything else is irresponsible to yourself and your commun ...
Virtual Private Netorks: An Overview
... resources from any public location using the remoteaccess VPN. If a secure VPN runs as part of a trusted VPN, then a hybrid VPN results [1]. C. A very useful classification of VPNs results from its nature, soft or hard. Usually a firewall is used to create and to manage a VPN. This is a hard VPN and ...
... resources from any public location using the remoteaccess VPN. If a secure VPN runs as part of a trusted VPN, then a hybrid VPN results [1]. C. A very useful classification of VPNs results from its nature, soft or hard. Usually a firewall is used to create and to manage a VPN. This is a hard VPN and ...
Presented
... What’s wrong with existing technology? Proliferation of trust • Switches and routers must correctly export link state, calculate routes and perform filtering • Overtime these functions have become more complex leading to more vulnerabilities. • SANE proposed to replace this with simple, minimally t ...
... What’s wrong with existing technology? Proliferation of trust • Switches and routers must correctly export link state, calculate routes and perform filtering • Overtime these functions have become more complex leading to more vulnerabilities. • SANE proposed to replace this with simple, minimally t ...
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.