TEL2813/IS2820 Security Management
... All Internet Control Message Protocol (ICMP) data should be denied Telnet (terminal emulation) access to all internal servers from the public networks should be blocked When Web services are offered outside the firewall, HTTP traffic should be handled by some form of proxy access or DMZ architecture ...
... All Internet Control Message Protocol (ICMP) data should be denied Telnet (terminal emulation) access to all internal servers from the public networks should be blocked When Web services are offered outside the firewall, HTTP traffic should be handled by some form of proxy access or DMZ architecture ...
chapter 7 networks: communicating and sharing resources
... backbone—A high-speed, high-capacity medium that transfers data over hundreds or thousands of miles in a wide area network (WAN) such as the Internet. A variety of physical media are used for backbone services, including microwave relay, satellites, and dedicated telephone lines. bus topology—The p ...
... backbone—A high-speed, high-capacity medium that transfers data over hundreds or thousands of miles in a wide area network (WAN) such as the Internet. A variety of physical media are used for backbone services, including microwave relay, satellites, and dedicated telephone lines. bus topology—The p ...
EEE436
... • A PON is a shared network, in that the OLT sends a single stream of downstream traffic that is seen by all ONTs. Each ONT only reads the content of those packets that are addressed to it. Encryption is used to prevent unauthorized snooping of downstream traffic. The OLT also communicates with each ...
... • A PON is a shared network, in that the OLT sends a single stream of downstream traffic that is seen by all ONTs. Each ONT only reads the content of those packets that are addressed to it. Encryption is used to prevent unauthorized snooping of downstream traffic. The OLT also communicates with each ...
Rr.destination
... Networks in Distributed Systems Distributed System is simply a collection of components that communicate to solve a problem Why should programmers of distributed systems know about networks? ...
... Networks in Distributed Systems Distributed System is simply a collection of components that communicate to solve a problem Why should programmers of distributed systems know about networks? ...
Slides
... Networks in Distributed Systems Distributed System is simply a collection of components that communicate to solve a problem Why should programmers of distributed systems know about networks? ...
... Networks in Distributed Systems Distributed System is simply a collection of components that communicate to solve a problem Why should programmers of distributed systems know about networks? ...
paper
... Agreement (SLA) with the subscribers in their backbones. This is particularly critical in all-optical mesh wavelength division multiplexed (WDM) networks where each lightpath may carry a huge amount of data. It has been widely noted that transferring a user’s data along a single active (or working) ...
... Agreement (SLA) with the subscribers in their backbones. This is particularly critical in all-optical mesh wavelength division multiplexed (WDM) networks where each lightpath may carry a huge amount of data. It has been widely noted that transferring a user’s data along a single active (or working) ...
ppt
... Some services make secondary checks against the identity of the user. For example, a web server could check with each request made that the IP address of the user matched the one last used during that session. This does not prevent attacks by somebody who shares the same IP address, however, and ...
... Some services make secondary checks against the identity of the user. For example, a web server could check with each request made that the IP address of the user matched the one last used during that session. This does not prevent attacks by somebody who shares the same IP address, however, and ...
The UNIX operating system
... (assets) available on a network by either by ◦ listening to network traffic, or ◦ probing the network by sending traffic and observing what traffic is returned as a result. ◦ E.g. scan looking for IP addresses (ping) ◦ Once you figure out what is there, then you can attack it appropriately Scan fo ...
... (assets) available on a network by either by ◦ listening to network traffic, or ◦ probing the network by sending traffic and observing what traffic is returned as a result. ◦ E.g. scan looking for IP addresses (ping) ◦ Once you figure out what is there, then you can attack it appropriately Scan fo ...
Intro_part1
... •What is a network? Set of nodes connected by communication links Components (Network edge) Computing devices (end hosts, PDAs, …) connected to the network (Network core) Routers/switches that move data through the network (Media) Physical links that carry information (fiber, copper, radio, and ...
... •What is a network? Set of nodes connected by communication links Components (Network edge) Computing devices (end hosts, PDAs, …) connected to the network (Network core) Routers/switches that move data through the network (Media) Physical links that carry information (fiber, copper, radio, and ...
OPTO SYS lecture 2003
... To assess the ability of ASON/GMPLS solutions to support demanding research applications. To identify service/network requirements of high-end applications for European research environments To develop guidelines for the introduction of ASON/GMPLS technologies and ultra-broadband services in future ...
... To assess the ability of ASON/GMPLS solutions to support demanding research applications. To identify service/network requirements of high-end applications for European research environments To develop guidelines for the introduction of ASON/GMPLS technologies and ultra-broadband services in future ...
Fundamentals of Computer Networks ECE 478/578
... Session Layer: Establishes connection among hosts, duplex, halfduplex, graceful connection termination, combination of streams Presentation Layer: Negotiation of format of data exchanged between hosts Application layer: Application services such as FTP, X.400 (mail), HTTP ...
... Session Layer: Establishes connection among hosts, duplex, halfduplex, graceful connection termination, combination of streams Presentation Layer: Negotiation of format of data exchanged between hosts Application layer: Application services such as FTP, X.400 (mail), HTTP ...
Network Architectures - Computing Sciences
... Used by wireless LANs because not all wireless devices can hear each other When network is quiet, device sends ‘intent-to-transmit’ signal Slower than CSMA/CD ...
... Used by wireless LANs because not all wireless devices can hear each other When network is quiet, device sends ‘intent-to-transmit’ signal Slower than CSMA/CD ...
6 marks
... uses the connection and then it releases the connection. Connectionless service is modelled after the postal system. Each message (letter) carries the destination address and each one is routed through the system independent of all the others. Yes, it is possible to have connection-oriented and conn ...
... uses the connection and then it releases the connection. Connectionless service is modelled after the postal system. Each message (letter) carries the destination address and each one is routed through the system independent of all the others. Yes, it is possible to have connection-oriented and conn ...
A Guide To Network Virtualization
... (STP) to prevent routing loops and broadcast radiation by disabling ports that are not part of the “tree.” These disabled ports are made active in the event of a link failure on one of the active ports. This means that up to half of the ports in a network could be in “passive” mode, leading to a hig ...
... (STP) to prevent routing loops and broadcast radiation by disabling ports that are not part of the “tree.” These disabled ports are made active in the event of a link failure on one of the active ports. This means that up to half of the ports in a network could be in “passive” mode, leading to a hig ...
Chapter 9 PPT
... • Also called classless routing or supernetting • Not exclusive of subnetting – Provides additional ways of arranging network and host information in an IP address – Conventional network class distinctions do not exist ...
... • Also called classless routing or supernetting • Not exclusive of subnetting – Provides additional ways of arranging network and host information in an IP address – Conventional network class distinctions do not exist ...
Semester 1 Chapter 11 - Institute of Technology Sligo
... Only metric is number of hops Max. hops is 15 Updates every 30 seconds Doesn’t always select fastest path Generates lots of network traffic with constant updates Most commonly used routing protocol for routers on same network ...
... Only metric is number of hops Max. hops is 15 Updates every 30 seconds Doesn’t always select fastest path Generates lots of network traffic with constant updates Most commonly used routing protocol for routers on same network ...
Price Method and Network Congestion Control
... choice of routing, in the systems with redundant paths existing between nodes. Here is an additional profit of using price instruments for network coordination. Equilibrium prices pl , calculated in the process of network balancing can be interpreted as link congestion indicators. As such they can be ...
... choice of routing, in the systems with redundant paths existing between nodes. Here is an additional profit of using price instruments for network coordination. Equilibrium prices pl , calculated in the process of network balancing can be interpreted as link congestion indicators. As such they can be ...
Associative Memories Example
... • The network is trained to retrieve 8 black and white patterns. Each pattern contains 120 pixels. The inputs of the net assume value +1 for black pixels and -1 for white pixels. • Retrieval 1: the fundamental memories are presented to the network to test its ability to recover them correctly from t ...
... • The network is trained to retrieve 8 black and white patterns. Each pattern contains 120 pixels. The inputs of the net assume value +1 for black pixels and -1 for white pixels. • Retrieval 1: the fundamental memories are presented to the network to test its ability to recover them correctly from t ...
Short vs. Long Flows: A Battle That Both Can Win
... To cope with these challenges, several transport protocols have been recently proposed. DCTCP [2], D2TCP [7] and D3 [8] aim at minimising flow completion times for latencysensitive flows. However, they require modifications in the network and/or deadline-awareness at the application layer. Such modi ...
... To cope with these challenges, several transport protocols have been recently proposed. DCTCP [2], D2TCP [7] and D3 [8] aim at minimising flow completion times for latencysensitive flows. However, they require modifications in the network and/or deadline-awareness at the application layer. Such modi ...
Supporting H.323 Video and Voice in an Enterprise Network
... Modem settings. These setting are effective for audio only, and for application sharing without video. When the H.323 configuration is set for more bandwidth than is available on the network, the resulting video and audio quality suffers drastically as the data packets are lost. This setting is ofte ...
... Modem settings. These setting are effective for audio only, and for application sharing without video. When the H.323 configuration is set for more bandwidth than is available on the network, the resulting video and audio quality suffers drastically as the data packets are lost. This setting is ofte ...
Introduction - Ilam university
... Subsequence packets follow the same circuit Sometimes called connection-oriented model. VCIs is swapped in the switches. Example: Lookup table. In-port ...
... Subsequence packets follow the same circuit Sometimes called connection-oriented model. VCIs is swapped in the switches. Example: Lookup table. In-port ...
Introduction to Networking Technology
... Prerequisites: To provide an understanding of development tools for Linux To provide a brief overview of embedded Linux architecture To provide a practical view of embedded Linux system design To provide a hands-on experience in developing Linux application software Course Length: 24 hrs Cou ...
... Prerequisites: To provide an understanding of development tools for Linux To provide a brief overview of embedded Linux architecture To provide a practical view of embedded Linux system design To provide a hands-on experience in developing Linux application software Course Length: 24 hrs Cou ...
