INTRODUCTION TO INFORMATION SYSTEMS TECHNOLOGY
... A set of rules for transmitting messages in LANs Most widely used protocol for LANs Uses a method called CSMA/CD* for wired LANs Set rules to handle collisions CSMA/CD* ...
... A set of rules for transmitting messages in LANs Most widely used protocol for LANs Uses a method called CSMA/CD* for wired LANs Set rules to handle collisions CSMA/CD* ...
Lecture 4: Mobile Computing
... Wireless networks in comparison to fixed networks • Higher delays, more jitter – connection setup time with GSM in the second range, several hundred milliseconds for other wireless systems, tens of seconds with Bluetooth • Lower security, simpler active attacking – radio interface accessible for ev ...
... Wireless networks in comparison to fixed networks • Higher delays, more jitter – connection setup time with GSM in the second range, several hundred milliseconds for other wireless systems, tens of seconds with Bluetooth • Lower security, simpler active attacking – radio interface accessible for ev ...
Clean Slate Design for the Internet
... There are still many things we’d be frightened to do: e.g. air-traffic control, telesurgery. The network is unreliable. We are tweaking. The research community has a lot to answer for: we’ve been stuck in incrementalism and backward compatibility. There is change afoot … NSF FIND and GENI. ...
... There are still many things we’d be frightened to do: e.g. air-traffic control, telesurgery. The network is unreliable. We are tweaking. The research community has a lot to answer for: we’ve been stuck in incrementalism and backward compatibility. There is change afoot … NSF FIND and GENI. ...
Security Aspects of Internet Related Software Engineering
... – Code signing for downloaded ActiveX controls – Implementation of security measures at the point the component is being requested to load on the client – Internet Explorer: Security zones (network domain ...
... – Code signing for downloaded ActiveX controls – Implementation of security measures at the point the component is being requested to load on the client – Internet Explorer: Security zones (network domain ...
www.c-jump.com
... – Attackers will often impersonate legitimate networks in restaurants, coffee shops, airports, etc. – Does not require wireless router – Ad hoc or peer-to-peer network – Once the connection is made • Attacker might be able to directly inject malware into the user’s computer or steal data ...
... – Attackers will often impersonate legitimate networks in restaurants, coffee shops, airports, etc. – Does not require wireless router – Ad hoc or peer-to-peer network – Once the connection is made • Attacker might be able to directly inject malware into the user’s computer or steal data ...
BUNDLE PROTOCOL
... • Used by Dsniff in dnsspoof attack – DNS response sent by Dsniff contains source address of the DNS server ...
... • Used by Dsniff in dnsspoof attack – DNS response sent by Dsniff contains source address of the DNS server ...
View Sample PDF - IRMA
... 2005). Nodes connected to this ALN check their operating systems’ log files to detect intrusion attempts. Information collected this way is then shared over the ALN to increase the security of all peers, which can then make the necessary protection steps, for example, blocking network traffic by the ...
... 2005). Nodes connected to this ALN check their operating systems’ log files to detect intrusion attempts. Information collected this way is then shared over the ALN to increase the security of all peers, which can then make the necessary protection steps, for example, blocking network traffic by the ...
Emsisoft Internet Security
... Blocker ensure optimum protection. Easy to use interface A simple yet efficient security suite that completely protects your digital life. Removal of Potentially Unwanted Programs ...
... Blocker ensure optimum protection. Easy to use interface A simple yet efficient security suite that completely protects your digital life. Removal of Potentially Unwanted Programs ...
Computer Vision I: Introduction
... communications device (hub/switch) A node sends a signal to the hub ...
... communications device (hub/switch) A node sends a signal to the hub ...
How to config 7228APn7416APn as Repeater
... Third Step: Change the IP address of EW-7416APn/EW-7228APn to fit in IP addresses of your network. This step is optional but recommended. You may want to change the IP address of EW-7416APn/EW-7228APn to a new IP address so it can be in the same subnet with your network. This is done under “System ...
... Third Step: Change the IP address of EW-7416APn/EW-7228APn to fit in IP addresses of your network. This step is optional but recommended. You may want to change the IP address of EW-7416APn/EW-7228APn to a new IP address so it can be in the same subnet with your network. This is done under “System ...
tia3_ppt_ch07 - School of Computer and Information Sciences
... • Software programs or hardware designed to close logical ports to invaders – A firewall is built into Windows XP – More robust firewalls are available from other vendors. – Firewalls are critical if you have an always-on broadband connection. ...
... • Software programs or hardware designed to close logical ports to invaders – A firewall is built into Windows XP – More robust firewalls are available from other vendors. – Firewalls are critical if you have an always-on broadband connection. ...
International Journal of Advance Research, IJOAR .org
... in the field of cable and wireless networks. Each of these type of networking has their advantages and disadvantages according to the security. The wired networks provide a faster and secure means of connectivity but the need of mobility means anytime, anywhere and anyone can access is tilting the n ...
... in the field of cable and wireless networks. Each of these type of networking has their advantages and disadvantages according to the security. The wired networks provide a faster and secure means of connectivity but the need of mobility means anytime, anywhere and anyone can access is tilting the n ...
[slides] Wireless networks
... Cell: geometric representation of areas. Geographic area is divided into cells, each serviced by an antenna called base station (BS) Mobile Switching Center (MSC) controls several BSs and serves as gateway to the backbone network (PSTN, ISDN, Internet) ...
... Cell: geometric representation of areas. Geographic area is divided into cells, each serviced by an antenna called base station (BS) Mobile Switching Center (MSC) controls several BSs and serves as gateway to the backbone network (PSTN, ISDN, Internet) ...
NAME: NWOSU CHIOMA GLORY LEVEL:100 COLLEGE: LAW
... ROUTERS: They have a very sophisticated Operating System (OS) that allows configuration of their various connection parts and are even smarter than bridges and switches. They segment LANs that have become very large and congested with data traffic. They also connect remote LANs ...
... ROUTERS: They have a very sophisticated Operating System (OS) that allows configuration of their various connection parts and are even smarter than bridges and switches. They segment LANs that have become very large and congested with data traffic. They also connect remote LANs ...
Lecture 22
... routers: network layer devices (examine network layer headers) switches are link layer devices routers maintain routing tables, implement routing ...
... routers: network layer devices (examine network layer headers) switches are link layer devices routers maintain routing tables, implement routing ...
2001-09-07-AIC-SecurityForEducation
... the Children's Internet Protection Act, as codified at 47 U.S.C. § 254(h) and (l), the recipient(s) of service represented in the Funding Request Number(s) on this Form 486 is (are) undertaking such actions, including any necessary procurement procedures, to comply with the requirements of CIPA for ...
... the Children's Internet Protection Act, as codified at 47 U.S.C. § 254(h) and (l), the recipient(s) of service represented in the Funding Request Number(s) on this Form 486 is (are) undertaking such actions, including any necessary procurement procedures, to comply with the requirements of CIPA for ...
Wireless Networks
... A PAN.---- (personal area network) refers to the interconnection of personal digital devices within a range of about 30 feel and without the use of wires or cables. A NAN (neighborhood area network) provides connectivity within a limited ...
... A PAN.---- (personal area network) refers to the interconnection of personal digital devices within a range of about 30 feel and without the use of wires or cables. A NAN (neighborhood area network) provides connectivity within a limited ...
The Payment Device - Verifone Support Portal
... Move away from the limitations of static images and leverage the same attention-getting dynamic messaging you used on television, plasma displays, digital signage, the Web and in print right where the consumer is ...
... Move away from the limitations of static images and leverage the same attention-getting dynamic messaging you used on television, plasma displays, digital signage, the Web and in print right where the consumer is ...
Binod_nepalPresentation
... Quality of Service Issues Compressed RTP As networks evolve to provide more bandwidth, applications, services and consumers of those applications all compete for that bandwidth. As for wireless networks with their high bit error rates and high latency, it is difficult to attain those high bandw ...
... Quality of Service Issues Compressed RTP As networks evolve to provide more bandwidth, applications, services and consumers of those applications all compete for that bandwidth. As for wireless networks with their high bit error rates and high latency, it is difficult to attain those high bandw ...
CS219: Advanced Topics in Internet Research
... – Information share (groupware, shared file space) • Question: how does mobility affect each of the above activities? ...
... – Information share (groupware, shared file space) • Question: how does mobility affect each of the above activities? ...
Wireless & Mobile Technologies
... other wireless technologies in the range of service, network capacity and data bit transfer rate. Designed to operate over a much smaller service area. Devices that participate in these types of peer based networks are designed to automatically discover other devices and services. Connects per ...
... other wireless technologies in the range of service, network capacity and data bit transfer rate. Designed to operate over a much smaller service area. Devices that participate in these types of peer based networks are designed to automatically discover other devices and services. Connects per ...
61765 Computer Networks I
... Application layer: DNS, HTTP, SMTP, POP3, P2P protocols Transport layer: services and principles, UDP, flow and congestion control, TCP implementation. Network layer: introduction to routing, link state and distance vector algorithms and protocols, autonomous systems, IP, DHCP, NAT, IPv6. Data Link ...
... Application layer: DNS, HTTP, SMTP, POP3, P2P protocols Transport layer: services and principles, UDP, flow and congestion control, TCP implementation. Network layer: introduction to routing, link state and distance vector algorithms and protocols, autonomous systems, IP, DHCP, NAT, IPv6. Data Link ...
Wireless security
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.