XORs in The Air: Practical Wireless Network Coding
... • COPE[2](Sigcomm 06) • MORE[3](Sigcomm 07) • MIXIT[4](Sigcomm 08) ...
... • COPE[2](Sigcomm 06) • MORE[3](Sigcomm 07) • MIXIT[4](Sigcomm 08) ...
Security Problems in the TCP/IP Protocol Suite
... Problem: Recursive zone transfer requests to download entire database Solution: Employ “refused” error code for any requests from unidentified servers ...
... Problem: Recursive zone transfer requests to download entire database Solution: Employ “refused” error code for any requests from unidentified servers ...
1. USN Introduction
... “Ad Hoc Networking", Charles E. Perkins, Addison-Wesley, December 2000. “Wireless Ad Hoc and Sensor Networks: Theory and Application”, Li, Cambridge Press. ...
... “Ad Hoc Networking", Charles E. Perkins, Addison-Wesley, December 2000. “Wireless Ad Hoc and Sensor Networks: Theory and Application”, Li, Cambridge Press. ...
An Analytical Solution to Video Streaming in Mobile Ad hoc Networks
... RREQ with metrics larger than the best will be dropped; otherwise update the best with current metric. ...
... RREQ with metrics larger than the best will be dropped; otherwise update the best with current metric. ...
EE579S Computer Security - Worcester Polytechnic Institute
... • There are an increasing number of approaches for providing minimum levels of service over packet networks • Many of these schemes do not fit nicely into the n-layer protocol model (e.g. MPLS) • Many of these schemes do not interoperate well with one another, so decisions must be taken about implem ...
... • There are an increasing number of approaches for providing minimum levels of service over packet networks • Many of these schemes do not fit nicely into the n-layer protocol model (e.g. MPLS) • Many of these schemes do not interoperate well with one another, so decisions must be taken about implem ...
Slideshow - VCE IT Lecture Notes
... limited coverage; can be black spots with no signal. • Uses same technology as mobile phone internet connection ...
... limited coverage; can be black spots with no signal. • Uses same technology as mobile phone internet connection ...
BitLocker Drive Encryption Self
... Click the checkbox next to Install U of C Encryption (Reboot Required) and then click Install Selected. ...
... Click the checkbox next to Install U of C Encryption (Reboot Required) and then click Install Selected. ...
Document
... NAT allows us to use RFC1918 (fake, illegal) addresses for our LAN and have only a few addresses seen on the Internet ...
... NAT allows us to use RFC1918 (fake, illegal) addresses for our LAN and have only a few addresses seen on the Internet ...
Lecture 25: Introduction to Network Security
... Critical health care data Banking and financial information National security secrets ...
... Critical health care data Banking and financial information National security secrets ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... The researchers have agreed that security is very significant issue for network where difficult to manage whole network at a time with all users. Security can be implemented at various levels of the intercommunications which are established on a physical layer and goes up via the data link, network, ...
... The researchers have agreed that security is very significant issue for network where difficult to manage whole network at a time with all users. Security can be implemented at various levels of the intercommunications which are established on a physical layer and goes up via the data link, network, ...
Virtual Private Network(VPN)
... VPN Security authentication—ensuring that the data originates at the source that it claims access control—restricting unauthorized users from gaining admission to the network confidentiality—preventing anyone from reading or copying data as it travels across the Internet data integrity—ensu ...
... VPN Security authentication—ensuring that the data originates at the source that it claims access control—restricting unauthorized users from gaining admission to the network confidentiality—preventing anyone from reading or copying data as it travels across the Internet data integrity—ensu ...
Chapter 2 Introduction
... Logs security incidents. The WGR614 v6 will log security events such as blocked incoming traffic, port scans, attacks, and administrator logins. You can configure the router to E-mail the log to you at specified intervals. You can also configure the router to send immediate alert messages to your E- ...
... Logs security incidents. The WGR614 v6 will log security events such as blocked incoming traffic, port scans, attacks, and administrator logins. You can configure the router to E-mail the log to you at specified intervals. You can also configure the router to send immediate alert messages to your E- ...
DOS Defenses - Dr. Stephen C. Hayne
... Attacker will scan a large number of networks looking for vulnerable machines Installs zombie software on exploited machine (TFN2K*, Tribe Flood Network…) ...
... Attacker will scan a large number of networks looking for vulnerable machines Installs zombie software on exploited machine (TFN2K*, Tribe Flood Network…) ...
Slide 1
... Trusted Network Interpretation of the Trusted Computer System Evaluation Criteria (1987) ...
... Trusted Network Interpretation of the Trusted Computer System Evaluation Criteria (1987) ...
ieee-computer
... particular city, neighborhood, or street and what services they are receiving in return—for example, nearby interesting shops or real-time maps. Such interfaces should include mechanisms that require clients to provide greater feedback about who is requesting location. In many cases, simple notifica ...
... particular city, neighborhood, or street and what services they are receiving in return—for example, nearby interesting shops or real-time maps. Such interfaces should include mechanisms that require clients to provide greater feedback about who is requesting location. In many cases, simple notifica ...
Unix Network Security - LSU Computer Science
... Unix Network system in terms of security will be introduced. General statements which apply to all network systems are risk, vulnerability, and threat. Analyzes of those statements should be done completely according to the necessities of the network and system. ...
... Unix Network system in terms of security will be introduced. General statements which apply to all network systems are risk, vulnerability, and threat. Analyzes of those statements should be done completely according to the necessities of the network and system. ...
![powerpoint [] slides](http://s1.studyres.com/store/data/008738881_1-8dac6a0c3ff5354a4b6e60287b1f06e8-300x300.png)
powerpoint [] slides
... network protocols: machines rather than humans all communication activity in Internet governed by protocols protocols define format, order of msgs sent and received among network entities, and actions taken on msg transmission, receipt, other events Introduction ...
... network protocols: machines rather than humans all communication activity in Internet governed by protocols protocols define format, order of msgs sent and received among network entities, and actions taken on msg transmission, receipt, other events Introduction ...
wireless-transport
... • TCP assumes congestion if packets are dropped – typically wrong in wireless networks, here we often have packet loss due to transmission errors – furthermore, mobility itself can cause packet loss, if e.g. a mobile node roams from one access point (e.g. foreign agent in Mobile IP) to another while ...
... • TCP assumes congestion if packets are dropped – typically wrong in wireless networks, here we often have packet loss due to transmission errors – furthermore, mobility itself can cause packet loss, if e.g. a mobile node roams from one access point (e.g. foreign agent in Mobile IP) to another while ...
Chapter 1
... involves local area networks (LANs) with a mixture of fixed and wireless devices. Intermediate/Extended network: this wireless network is actually made up of two fixed LANS components joined together by a wireless component. The bridge may be connecting LANS in two nearby buildings or even further. ...
... involves local area networks (LANs) with a mixture of fixed and wireless devices. Intermediate/Extended network: this wireless network is actually made up of two fixed LANS components joined together by a wireless component. The bridge may be connecting LANS in two nearby buildings or even further. ...
The Origins of First Broadband Group (FBG)
... -”Line of Sight” transmission requires a non-obstructed path between transmitting and receiving antennas for connectivity. ...
... -”Line of Sight” transmission requires a non-obstructed path between transmitting and receiving antennas for connectivity. ...
implementation of trust modeling scheme for artificial
... Each node in an operation must be stored a routing table, which records all the possible links with the nodes in the node and the distance like the number of hops, routing table within each record also contains a sequence number, which is used to determine are there any more old path in order to avo ...
... Each node in an operation must be stored a routing table, which records all the possible links with the nodes in the node and the distance like the number of hops, routing table within each record also contains a sequence number, which is used to determine are there any more old path in order to avo ...
Networks and the Internet
... File Transfer Protocol (FTP)—directory and file manipulation Telnet—remote terminal emulation Simple Mail Transfer Protocol (SMTP)— the basis for Internet e-mail Simple Network Management Protocol (SNMP)—reports management data Hypertext Transfer Protocol (HTTP)— ...
... File Transfer Protocol (FTP)—directory and file manipulation Telnet—remote terminal emulation Simple Mail Transfer Protocol (SMTP)— the basis for Internet e-mail Simple Network Management Protocol (SNMP)—reports management data Hypertext Transfer Protocol (HTTP)— ...
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.