A Look Back at “Security Problems in the TCP/IP Protocol Suite”
... sequence numbers of an active session, you can hijack it. This attack was implemented a few years later by Joncheray [53]. A more important point (and this is one made in [54]) is that the r-utilities are implicitly relying on TCP sequence numbers—and hence on TCP session correctness—for security pr ...
... sequence numbers of an active session, you can hijack it. This attack was implemented a few years later by Joncheray [53]. A more important point (and this is one made in [54]) is that the r-utilities are implicitly relying on TCP sequence numbers—and hence on TCP session correctness—for security pr ...
Open-E - Case Study - DieWe Diamantwerkzeuge GmbH
... The system integrator – and this is typical for small and medium-sized companies – came across an IT infrastructure with 8 Windows servers and some 100 clients that had simply developed over the years. Utility-controlled requirements had been chiefly responsible for the extensions. In particular, pa ...
... The system integrator – and this is typical for small and medium-sized companies – came across an IT infrastructure with 8 Windows servers and some 100 clients that had simply developed over the years. Utility-controlled requirements had been chiefly responsible for the extensions. In particular, pa ...
ppt - NOISE
... – Spanning tree algorithm has linear scaling behavior – Some frames are broadcast ...
... – Spanning tree algorithm has linear scaling behavior – Some frames are broadcast ...
What is The Internet? - FSU Computer Science Department
... • Local ISPs rely on national ISPs to send/receive data. The national ISPs provide service to local ISPs, just like the local ISPs provide service to your apartment – hierarchy • The ISPs in the highest level, meaning that they are not the customer of any other ISPs, are called tier-1 ISPS, such as ...
... • Local ISPs rely on national ISPs to send/receive data. The national ISPs provide service to local ISPs, just like the local ISPs provide service to your apartment – hierarchy • The ISPs in the highest level, meaning that they are not the customer of any other ISPs, are called tier-1 ISPS, such as ...
Unit One – The Basics of Computer Networking
... Network Diagram – Basic Layout and map of a traditional computer network. Network Types – Computer networks vary in shape and size depending on usage. - WAN - LAN - Peer to Peer Fiber Optic Cable – One of the Latest innovations in network cabling. Switches and Hubs – The central device within a netw ...
... Network Diagram – Basic Layout and map of a traditional computer network. Network Types – Computer networks vary in shape and size depending on usage. - WAN - LAN - Peer to Peer Fiber Optic Cable – One of the Latest innovations in network cabling. Switches and Hubs – The central device within a netw ...
End of module
... • There is a 64K address space for I/O addresses, although typically less than 1K is used. Each board that uses an I/O address contains a few bytes of memory (16, 32, etc.) set to a default address range. One or more alternate addresses is also provided to resolve conflicts with other boards. These ...
... • There is a 64K address space for I/O addresses, although typically less than 1K is used. Each board that uses an I/O address contains a few bytes of memory (16, 32, etc.) set to a default address range. One or more alternate addresses is also provided to resolve conflicts with other boards. These ...
How to Hack a Telecommunication Company And Stay Alive
... Network access control weakness Intrasegment attacks Protection of the end equipment Web applications for subscribers ...
... Network access control weakness Intrasegment attacks Protection of the end equipment Web applications for subscribers ...
Network Topoogies
... destination computer with the data. It then sends this data to the bus. All computers connected to the bus receive the data but only that computer accepts the data whose address matches the address attached with the data. In this topology only one computer can send data at a time. Therefore, the spe ...
... destination computer with the data. It then sends this data to the bus. All computers connected to the bus receive the data but only that computer accepts the data whose address matches the address attached with the data. In this topology only one computer can send data at a time. Therefore, the spe ...
Lecture 8 - cda college
... client can choose any port number (higher than 1024). This port number acts like a return address for the requesting application. The Transport layer keeps track of this port and the application that initiated the request so that when a response is returned, it can be forwarded to the correct ap ...
... client can choose any port number (higher than 1024). This port number acts like a return address for the requesting application. The Transport layer keeps track of this port and the application that initiated the request so that when a response is returned, it can be forwarded to the correct ap ...
Chapter 5
... The first 5 steps used in computing the shortest path from A to D. The arrows indicate the working node. ...
... The first 5 steps used in computing the shortest path from A to D. The arrows indicate the working node. ...
Computer Networking Basics
... Network Diagram – Basic Layout and map of a traditional computer network. Network Types – Computer networks vary in shape and size depending on usage. - WAN - LAN - Peer to Peer Fiber Optic Cable – One of the Latest innovations in network cabling. Switches and Hubs – The central device within a netw ...
... Network Diagram – Basic Layout and map of a traditional computer network. Network Types – Computer networks vary in shape and size depending on usage. - WAN - LAN - Peer to Peer Fiber Optic Cable – One of the Latest innovations in network cabling. Switches and Hubs – The central device within a netw ...
ICANN - GovLab
... While the intention is for IPv6 to replace IPv4, this process has not been yet been completed. This matters because IPv4 and IPv6 essentially operate as parallel systems, meaning data cannot be exchanged between these protocols without “special gateways” or transition technologies.23 ...
... While the intention is for IPv6 to replace IPv4, this process has not been yet been completed. This matters because IPv4 and IPv6 essentially operate as parallel systems, meaning data cannot be exchanged between these protocols without “special gateways” or transition technologies.23 ...
Chapter 4 Lecture Presentation
... Update IP routing and ARP tables at both end hosts as last step of circuit setup Analogous to switch fabric configuration Routing table update Add an entry indicating the remote host is directly reachable through the second (CHEETAH) NIC ARP table update Add an entry for the MAC address of the ...
... Update IP routing and ARP tables at both end hosts as last step of circuit setup Analogous to switch fabric configuration Routing table update Add an entry indicating the remote host is directly reachable through the second (CHEETAH) NIC ARP table update Add an entry for the MAC address of the ...
This document
... routes data at the data link layer (layer 2) of the OSI model. Some Switches can also process data at the network layer (Layer 3). Typically a datacenter networking environment consists of hosts connected through network fabric that consists of Ethernet or such cabling and switches. Many times switc ...
... routes data at the data link layer (layer 2) of the OSI model. Some Switches can also process data at the network layer (Layer 3). Typically a datacenter networking environment consists of hosts connected through network fabric that consists of Ethernet or such cabling and switches. Many times switc ...
ZigBee, ZDO, and ZDP
... Device discovery services have a few things in common: ◦ They provide additional information about a node. ◦ They are all optional from the client side, but some server side processing is mandatory (a common subset among all ZigBee devices). ◦ They are node-wide, and do not represent any particular ...
... Device discovery services have a few things in common: ◦ They provide additional information about a node. ◦ They are all optional from the client side, but some server side processing is mandatory (a common subset among all ZigBee devices). ◦ They are node-wide, and do not represent any particular ...
Introduction to Mobile Computing CNT 5517-5564
... Highly unavailable (normally powered-off to conserve battery) Limited capability (display, memory, input devices, and disk space) Lack of de-facto general architecture: handhelds, communicators, laptops, and other devices ...
... Highly unavailable (normally powered-off to conserve battery) Limited capability (display, memory, input devices, and disk space) Lack of de-facto general architecture: handhelds, communicators, laptops, and other devices ...
Layer cake and an hourglass
... at this level” (Peterson and Davie) Basically, unless you can completely remove the burden from end hosts, don’t bother ...
... at this level” (Peterson and Davie) Basically, unless you can completely remove the burden from end hosts, don’t bother ...
Computer Networks Addressing
... interfaces and performs packet forwarding A workstation may have many network interfaces and supports the IP stack without playing the role of router ...
... interfaces and performs packet forwarding A workstation may have many network interfaces and supports the IP stack without playing the role of router ...
The Network Layer
... Architectural model of IP where each IP is identified by a single machine Internet from connection-less to connection-oriented NAT violates the most fundamental rule of protocol layering Processes on the Internet are not required to use TCP or UDP Some application insert IP address in their body – ( ...
... Architectural model of IP where each IP is identified by a single machine Internet from connection-less to connection-oriented NAT violates the most fundamental rule of protocol layering Processes on the Internet are not required to use TCP or UDP Some application insert IP address in their body – ( ...
Switching
... – In the setup phase, switches operate essentially as packet switches. – A request frame for a connection to R is sent from S to the first switch containing the virtualcircuit ID that S is assigning to this circuit. – The routing table says that packets from S to R go out through a particular port, ...
... – In the setup phase, switches operate essentially as packet switches. – A request frame for a connection to R is sent from S to the first switch containing the virtualcircuit ID that S is assigning to this circuit. – The routing table says that packets from S to R go out through a particular port, ...
Lecture 3
... • Virtual machine model (nothing to do with VirtualBox or VMWare) – Treat a network as a single virtual machine – Good for resource management • share software by NFS, shared printers, shared home dir. ...
... • Virtual machine model (nothing to do with VirtualBox or VMWare) – Treat a network as a single virtual machine – Good for resource management • share software by NFS, shared printers, shared home dir. ...
network
... – Classful address: a class B address, wasting over 64K addresses – CIDR: a network with /23 – One class B address can be used for 128 such networks using CIDR ...
... – Classful address: a class B address, wasting over 64K addresses – CIDR: a network with /23 – One class B address can be used for 128 such networks using CIDR ...
Slide 1
... Web Services • XML-based standards that define protocols for automatic communication between applications over the Web. • Components of Web Service: – Universal Description, Discovery, and Integration (UDDI) • Technical specification for distributed registries of Web services and businesses open to ...
... Web Services • XML-based standards that define protocols for automatic communication between applications over the Web. • Components of Web Service: – Universal Description, Discovery, and Integration (UDDI) • Technical specification for distributed registries of Web services and businesses open to ...