logical topology
... LAN exist only at the lower layers of the OSI model. • We now need to add software components covering the remaining layers. • These components are supplied as part of the PC operating system as is the case with MS or may be supplied by an other vendor as is the case with ...
... LAN exist only at the lower layers of the OSI model. • We now need to add software components covering the remaining layers. • These components are supplied as part of the PC operating system as is the case with MS or may be supplied by an other vendor as is the case with ...
Mobile Wireless Ad Hoc Network (MANET)
... Limitations of energy: All nodes in MANET are mobile, so it is ascertained that node uses battery power to operate. So it is necessary to optimize the design of energy. Limitations Security: Wireless networks tend to be more vulnerable to security than wired networks. ...
... Limitations of energy: All nodes in MANET are mobile, so it is ascertained that node uses battery power to operate. So it is necessary to optimize the design of energy. Limitations Security: Wireless networks tend to be more vulnerable to security than wired networks. ...
Part 2. Logical Network Design
... The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network. In a computer network, the hosts most vulnerable to attack are those that provide ser ...
... The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network. In a computer network, the hosts most vulnerable to attack are those that provide ser ...
Data Transmission Review
... 22. Because single-segment 10Base2 Ethernet limits would be too confining for a large business, _________________ can be used to join Ethernet segments and extend the network to a total length of 925 meters (about 3035 feet). 23. A 10Base5 topology is also referred to as ___________________. 24. Fas ...
... 22. Because single-segment 10Base2 Ethernet limits would be too confining for a large business, _________________ can be used to join Ethernet segments and extend the network to a total length of 925 meters (about 3035 feet). 23. A 10Base5 topology is also referred to as ___________________. 24. Fas ...
Computer Networks and the Internet
... Most LANs connect workstations and personal computers. Each node (individual computer ) in a LAN has its own CPU with which it executes programs, but it also is able to access data and devices anywhere on the LAN. This means that many users can share expensive devices, such as laser printers, as w ...
... Most LANs connect workstations and personal computers. Each node (individual computer ) in a LAN has its own CPU with which it executes programs, but it also is able to access data and devices anywhere on the LAN. This means that many users can share expensive devices, such as laser printers, as w ...
Ingen lysbildetittel
... meter indoors, neighbouring room (0 dBm) - Interoperability: Today only one public profile is defined (HCL) - Extensive development cost and effort with specific customer application layer - Not for data streaming (audio/video) but smaller data packets at periodic intervals - Star network (point-to- ...
... meter indoors, neighbouring room (0 dBm) - Interoperability: Today only one public profile is defined (HCL) - Extensive development cost and effort with specific customer application layer - Not for data streaming (audio/video) but smaller data packets at periodic intervals - Star network (point-to- ...
Operating System Security
... fewest objects needed for successful work – The system backup program may be allowed to bypass read restrictions on files, but it would not have the ability to modify files. – Need to Know” ...
... fewest objects needed for successful work – The system backup program may be allowed to bypass read restrictions on files, but it would not have the ability to modify files. – Need to Know” ...
Wireless Networking
... Telemetry – Data Acquisition over GSM/GPRS Network In some locations a WLAN or MESH based network cannot provide a solution due to the remoteness of the location or the lack if installed WiFi infrastructure. In this instance our GSM/GPRS solution utilises the mobile telephone networks which offer c ...
... Telemetry – Data Acquisition over GSM/GPRS Network In some locations a WLAN or MESH based network cannot provide a solution due to the remoteness of the location or the lack if installed WiFi infrastructure. In this instance our GSM/GPRS solution utilises the mobile telephone networks which offer c ...
Proxies, Active Networks, Re-configurable Terminals: The Cornerstones of Future Wireless Internet
... predominantly sockets; applications use just UDP and TCP sockets. It is a commonly accepted fact that establishing and widely deploying the socket interface contributed essentially to the amount and diversity of internet applications. 3.1 Wireless vs. Wired Internet Access As the internet model inte ...
... predominantly sockets; applications use just UDP and TCP sockets. It is a commonly accepted fact that establishing and widely deploying the socket interface contributed essentially to the amount and diversity of internet applications. 3.1 Wireless vs. Wired Internet Access As the internet model inte ...
Enabling secure remote access
... Understanding the three methods External access to internal web-based applications Providing users with “desktop over HTTPS” capabilities Building full IP-based virtual private networks ...
... Understanding the three methods External access to internal web-based applications Providing users with “desktop over HTTPS” capabilities Building full IP-based virtual private networks ...
Dominating-Set-Based Routing in Ad Hoc Wireless Networks
... Trade-offs: network capacity usage in proactive approaches and the long delay in reactive approaches. A routing zone (for a host) includes the nodes within a given number of hops. Each host maintains routing information only to nodes within its routing zone. Information outside the routing zone is o ...
... Trade-offs: network capacity usage in proactive approaches and the long delay in reactive approaches. A routing zone (for a host) includes the nodes within a given number of hops. Each host maintains routing information only to nodes within its routing zone. Information outside the routing zone is o ...
What is WinConnect Server XP?
... Remote Desktop Protocol (RDP) 4.0, 5.0 and 5.1-enabled Thin Client devices to connect to it to run Windows® applications simultaneously and independently. The Thin Client devices include Terminals, Internet/Information Appliances, Tablet PCs and PDAs and are linked to the Host PC over wired or wirel ...
... Remote Desktop Protocol (RDP) 4.0, 5.0 and 5.1-enabled Thin Client devices to connect to it to run Windows® applications simultaneously and independently. The Thin Client devices include Terminals, Internet/Information Appliances, Tablet PCs and PDAs and are linked to the Host PC over wired or wirel ...
Risk-Aware Mitigation for MANET Routing Attacks
... Ad hoc Networks (MANET) are utilized to set up wireless communication in M obile improvised environments without a predefined infrastructure or centralized administration. Therefore, MANET has been normally deployed in adverse and hostile environments where central authority point is not necessary. ...
... Ad hoc Networks (MANET) are utilized to set up wireless communication in M obile improvised environments without a predefined infrastructure or centralized administration. Therefore, MANET has been normally deployed in adverse and hostile environments where central authority point is not necessary. ...
Known issue when using Novatel Wireless V620, V640 USB720
... (Network Driver Interface Specification) mode with the Microsoft Windows VistaTM operating system On the new Windows VistaTM OS, there is an issue with the connection stability when using the NDIS mode on the Novatel Wireless V620, V640 and the USB720. In order to maintain the 3G connection, the Net ...
... (Network Driver Interface Specification) mode with the Microsoft Windows VistaTM operating system On the new Windows VistaTM OS, there is an issue with the connection stability when using the NDIS mode on the Novatel Wireless V620, V640 and the USB720. In order to maintain the 3G connection, the Net ...
ap 12
... If a mobile node needs agent information immediately, it can issue ICMP router solicitation message ...
... If a mobile node needs agent information immediately, it can issue ICMP router solicitation message ...
Mobile IP and Wireless Application Protocol
... If a mobile node needs agent information immediately, it can issue ICMP router solicitation message ...
... If a mobile node needs agent information immediately, it can issue ICMP router solicitation message ...
Principal Security Engineer– PAE4IT A. PRIMARY ROLE Working
... required. Practical experience with one or more relational database packages is required. A demonstrated ability to apply security tools in small- and large-scale vulnerability assessments (vulnerability scanners, password cracking tools, etc.) is required. A demonstrated ability to clearly and effe ...
... required. Practical experience with one or more relational database packages is required. A demonstrated ability to apply security tools in small- and large-scale vulnerability assessments (vulnerability scanners, password cracking tools, etc.) is required. A demonstrated ability to clearly and effe ...
ppt
... different types of traffic statistics at the campus network border. • Searchable interface to traffic statistics. • Uses free tools (like MRTG) to gather and present stats ...
... different types of traffic statistics at the campus network border. • Searchable interface to traffic statistics. • Uses free tools (like MRTG) to gather and present stats ...
Designing Trusted Operating Systems Operating Systems
... they should not have access. Use the lattice model of security • military security model where <= in the model is the relation operator in the lattice ...
... they should not have access. Use the lattice model of security • military security model where <= in the model is the relation operator in the lattice ...
procedure name - Siskiyou Central Credit Union
... o The credit union has all devices assigned a static IP address, DHCP (Dynamic Host Configuration Protocol) is not enabled on the internal network. The use of DHCP is setup on the credit unions Linksys Firewall. The credit union uses a Linksys wireless router / firewall in conjunction with it‘s Link ...
... o The credit union has all devices assigned a static IP address, DHCP (Dynamic Host Configuration Protocol) is not enabled on the internal network. The use of DHCP is setup on the credit unions Linksys Firewall. The credit union uses a Linksys wireless router / firewall in conjunction with it‘s Link ...
Performance Evaluation ofIEEE802.11g WLANsUsing OPNET
... network. Stations may broadcast and flood packets in the wireless coverage area without accessing the Internet. The ad-hoc configuration can be deployed easily and promptly when the users involved cannot access or do not need a network infrastructure. However, in many instances, the infrastructure n ...
... network. Stations may broadcast and flood packets in the wireless coverage area without accessing the Internet. The ad-hoc configuration can be deployed easily and promptly when the users involved cannot access or do not need a network infrastructure. However, in many instances, the infrastructure n ...
Higher Computing Unit 1 – Peripherals and Interfaces
... A local council sets up an intranet within their headquarters. Internet access is made available through a web server on the intranet. Apart from allowing shared Internet access, state two functions that the web server is likely to provide the local council. ...
... A local council sets up an intranet within their headquarters. Internet access is made available through a web server on the intranet. Apart from allowing shared Internet access, state two functions that the web server is likely to provide the local council. ...
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.