Chapter
... • Subnets using IPv4 • Large networks can and should be divided into smaller networks called subnetworks or subnets • To divide a network into subnets, you designate part of the host portion of the IP address as a subnet ...
... • Subnets using IPv4 • Large networks can and should be divided into smaller networks called subnetworks or subnets • To divide a network into subnets, you designate part of the host portion of the IP address as a subnet ...
Skr4200_Chapter 10
... may support 2 or more net connections may be trusted to enforce trusted separation between network connections runs circuit / application level gateways or provides externally accessible services ...
... may support 2 or more net connections may be trusted to enforce trusted separation between network connections runs circuit / application level gateways or provides externally accessible services ...
SensorStat Gateway Server
... interoperability in mind. Using common web service methods, it provides a path for easy third-party tool development. The SensorStat Gateway Server firmware is under continual development, and with a Linux® core, it provides a solid base for expansion. Projects like OpenADR and many developing stand ...
... interoperability in mind. Using common web service methods, it provides a path for easy third-party tool development. The SensorStat Gateway Server firmware is under continual development, and with a Linux® core, it provides a solid base for expansion. Projects like OpenADR and many developing stand ...
OSI vs TCP/IP models
... Developed because companies wanted to exchange info over long distances. At first they used sneakernet, but sharing data using floppy disks was not efficient. •The solution was to network the resources (printers,servers) to increase productivity and save money. •Companies in the 80s created a variet ...
... Developed because companies wanted to exchange info over long distances. At first they used sneakernet, but sharing data using floppy disks was not efficient. •The solution was to network the resources (printers,servers) to increase productivity and save money. •Companies in the 80s created a variet ...
LAAC: A Location-Aware Access Control Protocol
... should not use security through obscurity. It is better to simply assume the AP’s know each others nonces through a secure channel. If a mobile station M Si is located in the accessgranted area, it collects all nonces of the access points in the corresponding AP group of the area, and derives its lo ...
... should not use security through obscurity. It is better to simply assume the AP’s know each others nonces through a secure channel. If a mobile station M Si is located in the accessgranted area, it collects all nonces of the access points in the corresponding AP group of the area, and derives its lo ...
... to access WAN via wired connection. Mobile node access the outer network via home agent. Home agent creates a secure connection with MN so that packet monitoring will not work for it and the user data gets secure. By implanting advanced routing technique, MN can move from one network to another netw ...
Computer Networks Lecture: Kholoud .AE Advantages of Network
... • The low level protocols used in such environment are different from those used in wide area network . • The common forms of LAN are those described by the IEEE standard 802. This standard describes operation up to and including OSI layer 2. Individuals may build what they like on top of these basi ...
... • The low level protocols used in such environment are different from those used in wide area network . • The common forms of LAN are those described by the IEEE standard 802. This standard describes operation up to and including OSI layer 2. Individuals may build what they like on top of these basi ...
IV. Mobile Agents in Wireless Sensor Network
... sensor nodes with ubiquitous sensing, processing, computing and with wireless communication capabilities, to implement complicated tasks dynamically in the specified sensing field or environment. As these are battery powered sensor nodes functioning in hostile, unattended sensing environment constra ...
... sensor nodes with ubiquitous sensing, processing, computing and with wireless communication capabilities, to implement complicated tasks dynamically in the specified sensing field or environment. As these are battery powered sensor nodes functioning in hostile, unattended sensing environment constra ...
Why Study Computers?
... In this way, people can exchange e-mail addresses, names and phone numbers while shaking hands, with the data automatically written into both their PDAs, the paper said. The companies have confirmed in an experiment that data can be transmitted at 10 megabits per second, comparable to the speed of a ...
... In this way, people can exchange e-mail addresses, names and phone numbers while shaking hands, with the data automatically written into both their PDAs, the paper said. The companies have confirmed in an experiment that data can be transmitted at 10 megabits per second, comparable to the speed of a ...
1 | I.C.T.C. “International Computer Training Center” www.ictc.gr info
... This class will immerse the student into an interactive environment where they will be shown how to scan, test, hack and secure their own systems. Students then learn how intruders escalate privileges and what steps can be taken to secure a system. Who Should Attend This course will significantly be ...
... This class will immerse the student into an interactive environment where they will be shown how to scan, test, hack and secure their own systems. Students then learn how intruders escalate privileges and what steps can be taken to secure a system. Who Should Attend This course will significantly be ...
Lab 5.5.2: Access Control Lists Challenge
... administrator has noticed that students in these labs are playing games across the WAN with the remote students. Make sure that your ACL prevents the LAN attached to R1 from reaching the LAN at R3 and that the LAN on R3 cannot reach the LAN on R1. Be specific in your statements so that any new LANs ...
... administrator has noticed that students in these labs are playing games across the WAN with the remote students. Make sure that your ACL prevents the LAN attached to R1 from reaching the LAN at R3 and that the LAN on R3 cannot reach the LAN on R1. Be specific in your statements so that any new LANs ...
Basic Networking
... • Key to solving network problems is to approach them methodically and logically, using your experience to inform your decisions, and knowing when to ask for someone else’s help • First step in troubleshooting is identifying the symptoms and potential causes for a problem • Second step in troublesho ...
... • Key to solving network problems is to approach them methodically and logically, using your experience to inform your decisions, and knowing when to ask for someone else’s help • First step in troubleshooting is identifying the symptoms and potential causes for a problem • Second step in troublesho ...
Network Protocols
... assigns IP addresses Allows a range of IP addresses to be defined Clients ask the server for and address Lease - scope ...
... assigns IP addresses Allows a range of IP addresses to be defined Clients ask the server for and address Lease - scope ...
Caldicott - Acute Trusts Knowledge base
... media, encrypted transfer, strong access controls and user identification and authentication, and secured wireless networks should all be considered to counter opportunist technical hacking/cracking. It is recommended that ‘two factor’ authentication is used and token-based, biometric, smartcard, et ...
... media, encrypted transfer, strong access controls and user identification and authentication, and secured wireless networks should all be considered to counter opportunist technical hacking/cracking. It is recommended that ‘two factor’ authentication is used and token-based, biometric, smartcard, et ...
PowerPoint - Surendar Chandra
... – given a cryptographic checksum for a message, it is virtually impossible to figure out what message produced that checksum; it is not computationally feasible to find two messages that hash to the same cryptographic checksum. ...
... – given a cryptographic checksum for a message, it is virtually impossible to figure out what message produced that checksum; it is not computationally feasible to find two messages that hash to the same cryptographic checksum. ...
for external use - Alcatel
... Free Wi-Fi access across the city has led to increased community empowerment, reducing pressure on the city’s municipal services and physical administration procedures The network solution is secure, reliable and scalable and is helping the city to reach its goal of becoming a ‘smart city’ Con ...
... Free Wi-Fi access across the city has led to increased community empowerment, reducing pressure on the city’s municipal services and physical administration procedures The network solution is secure, reliable and scalable and is helping the city to reach its goal of becoming a ‘smart city’ Con ...
NET 536Network Security
... The two protocols AH and ESP can provide several security services for packets at the network layer as shown in the table below: ...
... The two protocols AH and ESP can provide several security services for packets at the network layer as shown in the table below: ...
Class 13 - University of Delaware
... Alert generator – detect the attack, inform other nodes Classifier – distinguish legitimate from suspicious traffic, forward legitimate packets marked with legitimate mark, rate-limit suspicious packets, mark them with monitored mark Rate-limiter – rate limit all traffic to the victim, give the high ...
... Alert generator – detect the attack, inform other nodes Classifier – distinguish legitimate from suspicious traffic, forward legitimate packets marked with legitimate mark, rate-limit suspicious packets, mark them with monitored mark Rate-limiter – rate limit all traffic to the victim, give the high ...
Guide on Information Technology Security
... Compromising and abuse of system resources can be deliberate (hacker) or accidental (side-effect of a legitimate user action). It includes the ability to modify codes and data, and to use supercomputing, storage and network resources. It can also lead to a denial of service, even if it is not the pr ...
... Compromising and abuse of system resources can be deliberate (hacker) or accidental (side-effect of a legitimate user action). It includes the ability to modify codes and data, and to use supercomputing, storage and network resources. It can also lead to a denial of service, even if it is not the pr ...
Section for introduction % \section{Introduction} Over the last several
... operation can be prevented, since kernel-mode rootkits would exist above this layer, and thus would not be able to employ “layer below” hiding techniques or attacks on the security functionality itself. We have decided to rule out the use of hardware modifications to accomplish isolation due to thei ...
... operation can be prevented, since kernel-mode rootkits would exist above this layer, and thus would not be able to employ “layer below” hiding techniques or attacks on the security functionality itself. We have decided to rule out the use of hardware modifications to accomplish isolation due to thei ...
The role of Software Defined Networking in Wireless Mesh
... Wireless Mesh network (WMN) is a multi-hop radio station nodes with two Wi-Fi interfaces. One interface implements as an ad-hoc wireless Lan (WLAN). It acts as mesh router to forward the traffic via other nodes to the gateway. Other Wi-Fi interface implements as an access point (AP). Wireless Mesh N ...
... Wireless Mesh network (WMN) is a multi-hop radio station nodes with two Wi-Fi interfaces. One interface implements as an ad-hoc wireless Lan (WLAN). It acts as mesh router to forward the traffic via other nodes to the gateway. Other Wi-Fi interface implements as an access point (AP). Wireless Mesh N ...
2002-05-20-MDE-3hr-TechCoordTeleconference
... • Put into place preventative measures and recovery ...
... • Put into place preventative measures and recovery ...
Green-Aware Security
... 5. the integration of third-party Web application can lead to many possible hazards, and creates new security breaches; 6. to provide the proper degree of interactivity and sophisticated user-interfaces, specific design patterns are adopted. But, they increase the risk of attacks such as request for ...
... 5. the integration of third-party Web application can lead to many possible hazards, and creates new security breaches; 6. to provide the proper degree of interactivity and sophisticated user-interfaces, specific design patterns are adopted. But, they increase the risk of attacks such as request for ...
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.