
ppt
... Firewalls • Basic problem – many network applications and protocols have security problems that are fixed over time • Difficult for users to keep up with changes and keep host secure • Solution • Administrators limit access to end hosts by using a firewall • Firewall and limited number of machines ...
... Firewalls • Basic problem – many network applications and protocols have security problems that are fixed over time • Difficult for users to keep up with changes and keep host secure • Solution • Administrators limit access to end hosts by using a firewall • Firewall and limited number of machines ...
Proxies, Active Networks, Re-configurable Terminals: The Cornerstones of Future Wireless Internet
... we would mostly like to address individual processes. This granularity, jointly with additional error recognition, is given by UDP (for delay-sensitive, error-insensitive applications), while granularity jointly with reliable delivery is provided by TCP (for error-sensitive, delay-insensitive traffi ...
... we would mostly like to address individual processes. This granularity, jointly with additional error recognition, is given by UDP (for delay-sensitive, error-insensitive applications), while granularity jointly with reliable delivery is provided by TCP (for error-sensitive, delay-insensitive traffi ...
L17
... • Packets consume resources and are dropped elsewhere in network • Solution: congestion control for ALL traffic ...
... • Packets consume resources and are dropped elsewhere in network • Solution: congestion control for ALL traffic ...
Intrusion Detection Systems:
... Current versions of Tripwire encrypt these files and a passphrase is required if changes are needed to be made to any of them. Plaintext versions of the configuration and policy files are available for making modifications, but should be deleted after implementing those changes. ...
... Current versions of Tripwire encrypt these files and a passphrase is required if changes are needed to be made to any of them. Plaintext versions of the configuration and policy files are available for making modifications, but should be deleted after implementing those changes. ...
Co-authors Point of View
... Request source anonymity doesn’t stop bad actors identifying material accessed and monitoring network traffic to identify sources Just a bit more difficult than with an address ...
... Request source anonymity doesn’t stop bad actors identifying material accessed and monitoring network traffic to identify sources Just a bit more difficult than with an address ...
stributed Computing : Current Theories and Current Practices
... networked environment. Although such an environment can be extremely complex, we thankfully have, for most all practical purposes, one network in this environment – the Internet, made up of a standard set of software protocols that are recognized by nearly all computer software creators. Most distri ...
... networked environment. Although such an environment can be extremely complex, we thankfully have, for most all practical purposes, one network in this environment – the Internet, made up of a standard set of software protocols that are recognized by nearly all computer software creators. Most distri ...
P4P : Provider Portal for (P2P) Applications Haiyong Xie, et al
... a portal for each network resource provider Allows P4P to divide traffic control responsibilities between ap plications and network providers Makes P4P incrementally deployable and extensible iTracker of a provider can be identified in various ways ...
... a portal for each network resource provider Allows P4P to divide traffic control responsibilities between ap plications and network providers Makes P4P incrementally deployable and extensible iTracker of a provider can be identified in various ways ...
Citrix GoToMyPC Corporate Technology
... While GoToMyPC® Personal is an easy-to-use, turnkey remote-access solution for individuals, GoToMyPC Corporate makes this same user-friendly remote-access solution available to corporate users. Through enterprise-class administration features, GoToMyPC Corporate gives IT administrators complete cont ...
... While GoToMyPC® Personal is an easy-to-use, turnkey remote-access solution for individuals, GoToMyPC Corporate makes this same user-friendly remote-access solution available to corporate users. Through enterprise-class administration features, GoToMyPC Corporate gives IT administrators complete cont ...
Document
... • buffering when arrival rate via switch exceeds output line speed • queueing (delay) and loss due to output port buffer overflow! ...
... • buffering when arrival rate via switch exceeds output line speed • queueing (delay) and loss due to output port buffer overflow! ...
Switching and Routing
... link by having multiple virtual channels: – Each virtual channel has one buffer with the related flow control mechanism. – The switch can use some scheduling algorithm to select flits in different buffer for ...
... link by having multiple virtual channels: – Each virtual channel has one buffer with the related flow control mechanism. – The switch can use some scheduling algorithm to select flits in different buffer for ...
Week_Twelve_ppt - Franklin University Computing Sciences
... • H.323 is a standard for teleconferencing that was developed by the International Telecommunications Union (ITU). • It supports full multimedia audio, video and data transmission between groups of two or more participants, and it is designed to support large networks. • H.323 is still a very import ...
... • H.323 is a standard for teleconferencing that was developed by the International Telecommunications Union (ITU). • It supports full multimedia audio, video and data transmission between groups of two or more participants, and it is designed to support large networks. • H.323 is still a very import ...
jxta technology
... This protocol allows a peer to ask a peer router for available routes for sending a message to a destination peer as often, two communicating peers may not be directly connected to each other. Any peer can decide to become a peer router by implementing the Peer Endpoint Protocol. ...
... This protocol allows a peer to ask a peer router for available routes for sending a message to a destination peer as often, two communicating peers may not be directly connected to each other. Any peer can decide to become a peer router by implementing the Peer Endpoint Protocol. ...
Slides
... Firewalls • Two types: packet filtering, and application gateways. • Packet filtering is done based on IP addresses, TCP or UDP ports, ICMP message type, TCP SYN or ACK bits (first segment has ACK=0 so this prevents outside users to open TCP connections with inside servers). • Application gateways ...
... Firewalls • Two types: packet filtering, and application gateways. • Packet filtering is done based on IP addresses, TCP or UDP ports, ICMP message type, TCP SYN or ACK bits (first segment has ACK=0 so this prevents outside users to open TCP connections with inside servers). • Application gateways ...
presentation
... Telcos’ Options for Survival Option #1: Break “network + service” vertical integration: – Build less, use more: open cable capacity to service providers – Telcos become “hollow pipes” ...
... Telcos’ Options for Survival Option #1: Break “network + service” vertical integration: – Build less, use more: open cable capacity to service providers – Telcos become “hollow pipes” ...
SANS Top 5 Essential Log Reports
... In June of 2000, the "SANS/FBI Top 10 Critical Vulnerabilities" consensus list was created. This list identified the ten most frequently exploited vulnerabilities on the Internet. While the list was not intended to be a complete list of all possible threat models, it was an extremely useful action i ...
... In June of 2000, the "SANS/FBI Top 10 Critical Vulnerabilities" consensus list was created. This list identified the ten most frequently exploited vulnerabilities on the Internet. While the list was not intended to be a complete list of all possible threat models, it was an extremely useful action i ...
The NEBULA Future Internet Architecture
... • What are the scalability barriers? • What are the technical/economic tradeoffs among redundancy: 1) inside routers, 2) inside data centers and 3) between routers? • Algorithms and Interfaces for path ...
... • What are the scalability barriers? • What are the technical/economic tradeoffs among redundancy: 1) inside routers, 2) inside data centers and 3) between routers? • Algorithms and Interfaces for path ...
Virtual Router - UCF CS - University of Central Florida
... • Street width is 10 meters, and building block size is 100m by 100m. • Initial nodes placement: 2 nodes per intersection, and 8 nodes per block. • Mobility model: At intersections, a node pauses for a period of time, and then probabilistically changes its direction of movement. • Speed: random betw ...
... • Street width is 10 meters, and building block size is 100m by 100m. • Initial nodes placement: 2 nodes per intersection, and 8 nodes per block. • Mobility model: At intersections, a node pauses for a period of time, and then probabilistically changes its direction of movement. • Speed: random betw ...
QoS Networking Requirements
... just storage plus best effort – basically, an ISP plus some diskspace on some servers…not relevant (NB Care – term “Web Services” now common place for middleware such as SOAP and WSDL…not same thing – they are relevant to TAPAS of course!)/ • Goal of CSP (e.g. Akamai, Inktomi etc) is to optimise Web ...
... just storage plus best effort – basically, an ISP plus some diskspace on some servers…not relevant (NB Care – term “Web Services” now common place for middleware such as SOAP and WSDL…not same thing – they are relevant to TAPAS of course!)/ • Goal of CSP (e.g. Akamai, Inktomi etc) is to optimise Web ...
IP address - ECS Networking
... ¡ Hosts learn IP → Ethernet address mappings § ARP responses are stored in ARP tables § ARP requests are stored in ARP tables (whether ...
... ¡ Hosts learn IP → Ethernet address mappings § ARP responses are stored in ARP tables § ARP requests are stored in ARP tables (whether ...
CCNA 1 v5.1 Practice Final Exam Answers 2016 100% PDF
... o mesh o ring o star 16. What type of communication rule would best describe CSMA/CD? o access method o flow control o message encapsulation o message encoding 17. If data is being sent over a wireless network, then connects to an Ethernet network, and eventually connects to a DSL connection, which ...
... o mesh o ring o star 16. What type of communication rule would best describe CSMA/CD? o access method o flow control o message encapsulation o message encoding 17. If data is being sent over a wireless network, then connects to an Ethernet network, and eventually connects to a DSL connection, which ...
Denial of service (DOS) - Computer Science and Engineering
... • In some TCP/IP stack implementations those kinds of packets may cause the victim's host to crash. • Any remote user that can send spoofed packets to a host can crash or "hang" that host. • Possible solution for this attack is to block IP-spoofed packets. Attacks like those of the Land tool rely on ...
... • In some TCP/IP stack implementations those kinds of packets may cause the victim's host to crash. • Any remote user that can send spoofed packets to a host can crash or "hang" that host. • Possible solution for this attack is to block IP-spoofed packets. Attacks like those of the Land tool rely on ...
Chapter 7 Lecture Presentation
... Routing in Packet Networks Shortest Path Routing ATM Networks ...
... Routing in Packet Networks Shortest Path Routing ATM Networks ...
TCP/IP Internetworking (Part 2)
... In this case network 192.168.x.x and network 60.x.x.x). An “x” indicates anything Corporate network 192.168.x.x ...
... In this case network 192.168.x.x and network 60.x.x.x). An “x” indicates anything Corporate network 192.168.x.x ...
Presenting
... • Header Length (because of the options field) • Total length includes header and data • Service Type – lets user identify his needs in terms of bandwidth and delay (for example QoS) • Time to Leave prevents a packet from looping forever • Protocol, indicates the sending protocol (TCP,UDP,IP…) • Sou ...
... • Header Length (because of the options field) • Total length includes header and data • Service Type – lets user identify his needs in terms of bandwidth and delay (for example QoS) • Time to Leave prevents a packet from looping forever • Protocol, indicates the sending protocol (TCP,UDP,IP…) • Sou ...