Security in network
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
Survey: Distributed Operating Systems Introduction 1 Network
... • Redundancy Techniques: N-version programming helps avoid software bugs (in addition to hardware faults) by running different versions of the program on different nodes. Will this work better or worse now? ...
... • Redundancy Techniques: N-version programming helps avoid software bugs (in addition to hardware faults) by running different versions of the program on different nodes. Will this work better or worse now? ...
Slide 1
... and most things are just different, but no more or less secure Better: Automated scanning and worm propagation is harder due to huge subnets Worse: Increased complexity in addressing and configuration Lack of familiarity with IPv6 among operators Vulnerabilities in transition techniques Dual-stack i ...
... and most things are just different, but no more or less secure Better: Automated scanning and worm propagation is harder due to huge subnets Worse: Increased complexity in addressing and configuration Lack of familiarity with IPv6 among operators Vulnerabilities in transition techniques Dual-stack i ...
Device Security
... 6. Disable unnecessary services • If a service is not being actively used on a device, it should be disabled. • Otherwise it may be used as a back door for the attacker to gain access to the device. • Sample services to be disabled: Table 3-1 TCP small servers, UDP small servers, Finger server, … N ...
... 6. Disable unnecessary services • If a service is not being actively used on a device, it should be disabled. • Otherwise it may be used as a back door for the attacker to gain access to the device. • Sample services to be disabled: Table 3-1 TCP small servers, UDP small servers, Finger server, … N ...
Logistical Networking
... reduce IP RTT, speeding up TCP transfers • Overlay multicast using either multiple TCP streams or IP multicast at tree nodes » What’s missing? • Management by Applications! ...
... reduce IP RTT, speeding up TCP transfers • Overlay multicast using either multiple TCP streams or IP multicast at tree nodes » What’s missing? • Management by Applications! ...
6.11 Advanced Topics: Networks
... Thus far we have been assuming that packets travel through copper or fiber. IEEE 802.11, popularly known as WiFi, extended the Ethernet standard to communicate through the air, which comes closer to the original inspiration for its name. Three variations are available in 2006: 802.11b, with a peak b ...
... Thus far we have been assuming that packets travel through copper or fiber. IEEE 802.11, popularly known as WiFi, extended the Ethernet standard to communicate through the air, which comes closer to the original inspiration for its name. Three variations are available in 2006: 802.11b, with a peak b ...
Client-server networks - UK Government Web Archive
... system. Depending on the specification and the number of services running on it, a single server can support up to 100 client machines. For you to use your server, you will need to install a network operating system (NOS). The most common types of system in use are Microsoft Windows 2000/2003 Server ...
... system. Depending on the specification and the number of services running on it, a single server can support up to 100 client machines. For you to use your server, you will need to install a network operating system (NOS). The most common types of system in use are Microsoft Windows 2000/2003 Server ...
William Stallings Data and Computer Communications
... support range of network services differentiated on basis of performance IP Packets labeled for differing QoS using existing IPv4 Type of Service or IPv6 Traffic calss Service level agreement established between provider and customer prior to use of DS Built in aggregation Good scaling to lar ...
... support range of network services differentiated on basis of performance IP Packets labeled for differing QoS using existing IPv4 Type of Service or IPv6 Traffic calss Service level agreement established between provider and customer prior to use of DS Built in aggregation Good scaling to lar ...
Routers, Filtering, firewall, and NAT
... – When a packet is sent from a computer to the "internet", the firewall receives the packet, changes the packet to it's address, then sends it to the internet and waits for a response • Also changes the source port number as well. ...
... – When a packet is sent from a computer to the "internet", the firewall receives the packet, changes the packet to it's address, then sends it to the internet and waits for a response • Also changes the source port number as well. ...
Secure Mobile IP Communication - Department of Computer Science
... • What is IPsec? • How does it work? • What issues does it handle? ...
... • What is IPsec? • How does it work? • What issues does it handle? ...
PPT - CS.Duke
... • Start with a full broadcast tree to all links (RPB) • Prune unnecessary links – Hosts interested in G periodically announce membership – If a leaf network does not have any member, sends a prune message to parent • Augment distance vector to propagate groups interested to other routers • Only do s ...
... • Start with a full broadcast tree to all links (RPB) • Prune unnecessary links – Hosts interested in G periodically announce membership – If a leaf network does not have any member, sends a prune message to parent • Augment distance vector to propagate groups interested to other routers • Only do s ...
Networking and the Internet
... a request to AP. AP sends an acknowledgement to all nodes after receiving the request. ...
... a request to AP. AP sends an acknowledgement to all nodes after receiving the request. ...
Using Argus Audit Trails to Enhance IDS Analysis
... • A stepping stone is a computer that is used as an intermediate point between two other computers • Stepping stones are frequently used by attackers to obscure their location/identity • Stepping stones can be detected by correlation of on/off times between two network flows. This is prone to false ...
... • A stepping stone is a computer that is used as an intermediate point between two other computers • Stepping stones are frequently used by attackers to obscure their location/identity • Stepping stones can be detected by correlation of on/off times between two network flows. This is prone to false ...
usatlas-ahm-openstack-apr-2014 - Indico
... To what degree are we spending effort on worker node /grid environment administration? Cloud outsources this. How many institutional tenants use the site? How uniform is the network bandwidth/connectivity within cluster? For IaaS network needs to be flat and performant. ...
... To what degree are we spending effort on worker node /grid environment administration? Cloud outsources this. How many institutional tenants use the site? How uniform is the network bandwidth/connectivity within cluster? For IaaS network needs to be flat and performant. ...
Chapter 1 - UniMAP Portal
... Networks and Services Network Architecture and Services Telegraph Networks & Message Switching Telephone Networks and Circuit Switching Computer Networks & Packet Switching Future Network Architectures and Services Key Factors in Network Evolution ...
... Networks and Services Network Architecture and Services Telegraph Networks & Message Switching Telephone Networks and Circuit Switching Computer Networks & Packet Switching Future Network Architectures and Services Key Factors in Network Evolution ...
The IP, TCP, UDP protocols - FSU Computer Science
... (one string of 0’s can be omitted) – Single host: 1080:0:0:0:0:800:0:417A or 1080::800:0:417A ...
... (one string of 0’s can be omitted) – Single host: 1080:0:0:0:0:800:0:417A or 1080::800:0:417A ...
Chapter 1 Communication Networks and Services
... ARPANET Routing Routing is highly nontrivial in mesh networks No connection setup prior to packet transmission Packets header includes source & destination addresses ...
... ARPANET Routing Routing is highly nontrivial in mesh networks No connection setup prior to packet transmission Packets header includes source & destination addresses ...
Chapter 4. - Amoud University
... internet layer or the network layer, provides the “virtual network” image of an internet (this layer shields the higher levels from the physical network architecture below it). Internet Protocol (IP) is the most important protocol in this layer. It is a connectionless protocol that does not assume r ...
... internet layer or the network layer, provides the “virtual network” image of an internet (this layer shields the higher levels from the physical network architecture below it). Internet Protocol (IP) is the most important protocol in this layer. It is a connectionless protocol that does not assume r ...
PowerPoint Presentation - The IP, TCP, UDP protocols
... (one string of 0’s can be omitted) – Single host: 1080:0:0:0:0:800:0:417A or 1080::800:0:417A ...
... (one string of 0’s can be omitted) – Single host: 1080:0:0:0:0:800:0:417A or 1080::800:0:417A ...
What is a communication network?
... Networks and Services Network Architecture and Services Telegraph Networks & Message Switching Telephone Networks and Circuit Switching Computer Networks & Packet Switching Future Network Architectures and Services Key Factors in Network Evolution ...
... Networks and Services Network Architecture and Services Telegraph Networks & Message Switching Telephone Networks and Circuit Switching Computer Networks & Packet Switching Future Network Architectures and Services Key Factors in Network Evolution ...
the pdf specification. - Academy Computer Services
... in, connect it to your network, power it up and type in its logon URL at any network browser. Its graphical browser interface will have you setting up user accounts immediately, just by pointing and clicking. Full documentation is included. No linux knowledge necessary; Webmin let’s you administer t ...
... in, connect it to your network, power it up and type in its logon URL at any network browser. Its graphical browser interface will have you setting up user accounts immediately, just by pointing and clicking. Full documentation is included. No linux knowledge necessary; Webmin let’s you administer t ...
Part 1
... IP addressing: introduction Q: how are interfaces actually connected? A: we’ll learn about that in chapter 5, 6. ...
... IP addressing: introduction Q: how are interfaces actually connected? A: we’ll learn about that in chapter 5, 6. ...
William Stallings Data and Computer Communications
... support range of network services differentiated on basis of performance • IP Packets labeled for differing QoS using existing IPv4 Type of Service or IPv6 Traffic calss • Service level agreement established between provider and customer prior to use of DS • Built in aggregation • Good scaling to la ...
... support range of network services differentiated on basis of performance • IP Packets labeled for differing QoS using existing IPv4 Type of Service or IPv6 Traffic calss • Service level agreement established between provider and customer prior to use of DS • Built in aggregation • Good scaling to la ...
