talkin to the outside world network access
Interacting with the Outside World Using Simple IO Devices
Ngày tải lên :
03/10/2013, 01:20
... connected to the port B The LEDs are ON-Off with the predefined software delay And after ONOff 10 times send the data stored in Array Program to illustrate the blinking and sending the data pattern stored ... through the port line causes these devices to produce mechanical distortion to the diaphragm Even by applying an AC voltage/variable pulses using the timer counter of the microcontroller will move the ... interfaced to the microcontroller either by using a pull-up resistor (i.e by connecting the switches to Vcc through a current limiting resistor) or in a pull-down mode with a small value resistor between...
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Tài liệu Speaking to the Spirit World doc
Ngày tải lên :
10/12/2013, 05:15
... qualities of the tonal Hmong language [5] Before beginning the body of this article, I would like to tell you the legend of the origin of the qeej as it was told to me by Mr Nhia Dang Kue of Stockton, ... unseen world, this is not true for the Hmong The job of the funeral qeej is to bring the personal life story of the deceased into the right relationship with all that is and ever has been If the ... Not just the drama of the living, but also the drama of the spirits and the ancestors - the endless rejoining and separating of reincarnation [36] The qeej lub, the creation story, is the most...
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Practical packet analysis Using Wireshark to Solve Real-World Network Problems ppt
Ngày tải lên :
16/03/2014, 12:20
... application layer at the top represents the actual programs used to access network resources The bottom layer is the physical layer, through which the actual network data travels The protocols at each ... immediately The best we can hope to is be fully prepared with the knowledge and the tools it takes to respond to these types of issues All network problems stem from the packet level, where even the ... sent to the destination computer The receiving computer strips the protocol headers and footers from the PDU as the data climbs up the OSI layers Once the PDU reaches the top layer of the OSI...
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practical packet analysis - using wireshark to solve real-world network problems
Ngày tải lên :
25/03/2014, 11:59
... application layer at the top represents the actual programs used to access network resources The bottom layer is the physical layer, through which the actual network data travels The protocols at each ... immediately The best we can hope to is be fully prepared with the knowledge and the tools it takes to respond to these types of issues All network problems stem from the packet level, where even the ... sent to the destination computer The receiving computer strips the protocol headers and footers from the PDU as the data climbs up the OSI layers Once the PDU reaches the top layer of the OSI...
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Practical Packet Analysis: Using Wireshark to Solve Real-World Network Problems doc
Ngày tải lên :
27/06/2014, 00:20
... easier to understand network communication The application layer at the top represents the actual programs used to access network resources The bottom layer is the physical layer, through which the ... immediately The best we can hope to is be fully prepared with the knowledge and the tools it takes to respond to these types of issues All network problems stem from the packet level, where even the ... sent to the destination computer The receiving computer strips the protocol headers and footers from the PDU as the data climbs up the OSI layers Once the PDU reaches the top layer of the OSI...
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Báo cáo y học: "A hitchhiker’s guide to the MADS world of plants" pptx
Ngày tải lên :
09/08/2014, 20:22
... miRNAs Specific miRNAs bind to the mRNAs of these genes, leading to the cleavage and subsequent degradation of the mRNAs The miR-444 family of miRNAs is specific to the Poaceae (the grasses) and targets ... TM3, tomato MADS3; GLO, GLOBOSA; other abbreviations are defined in the text and Table groups seem to be lineage-specific, whereas the major clades of the MIKCC group and the two classes of the ... functions together with AGL80 to differentiate the central cell in the gametophyte In agl61 mutant ovules, the polar nuclei not fuse and central cell morphology is aberrant In addition, the central...
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practical packet analysis using wireshark to solve real world network problems phần 1 doc
Ngày tải lên :
14/08/2014, 14:20
... the stressful times I want to thank Bill, Tyler, Christina, and the rest of the team at No Starch Press for giving me the opportunity to write this book and allowing me the creative freedom to ... upon the Wireshark project (it was called Ethereal at the time) This software allowed me to enter a completely new world Being able to analyze problems in new ways and having the ability to see ... I would like to thank God for giving me the strength and fortitude it took to complete this project When my to- do list grew longer and longer and there was no end in sight, he was the one who...
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practical packet analysis using wireshark to solve real world network problems phần 2 docx
Ngày tải lên :
14/08/2014, 14:20
... application layer at the top represents the actual programs used to access network resources The bottom layer is the physical layer, through which the actual network data travels The protocols at each ... immediately The best we can hope to is be fully prepared with the knowledge and the tools it takes to respond to these types of issues All network problems stem from the packet level, where even the ... sent to the destination computer The receiving computer strips the protocol headers and footers from the PDU as the data climbs up the OSI layers Once the PDU reaches the top layer of the OSI...
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practical packet analysis using wireshark to solve real world network problems phần 3 ppt
Ngày tải lên :
14/08/2014, 14:20
... a Layer protocol known as the Address Resolution Protocol (ARP) When one computer needs to send data to another, it sends an ARP request to the switch it is connected to The switch then sends ... Next, connect your hub to the network by plugging in a network cable from it to the network switch Now you have basically put the target device and your analyzer into the same broadcast domain, ... have your hardware, go to the switch the target device resides on and unplug the target from the network Then plug the target’s network cable into your hub, and plug in another cable connecting your...
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practical packet analysis using wireshark to solve real world network problems phần 4 docx
Ngày tải lên :
14/08/2014, 14:20
... later, it’s better to filter them temporarily than it is to delete them altogether To filter out all ARP packets in the capture window, follow these steps: Navigate to the top of the Packet List ... Select the color you wish to use on the color wheel and click OK Click OK twice more to accept the changes and return to the main window The main window should then reload itself to reflect the ... filter by clicking the New button on the left side of the screen Type a name for your filter in the box next to the words Filter name Type the actual filter in the box next to the words Filter...
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practical packet analysis using wireshark to solve real world network problems phần 5 doc
Ngày tải lên :
14/08/2014, 14:20
... be analyzed The ICMP protocol dissector allows Wireshark to take the raw data off the wire and format it as an ICMP packet You can think of a dissector as the translator between the raw data ... endpoints in the current capture file Click a tab to narrow the list of endpoints to specific protocols Check the box next to the words Name Resolution to use name resolution within the endpoints ... NetBIOS traffic! To fix this problem, we force Wireshark to use the FTP protocol dissector on these packets, a process referred to as a forced decode To perform this process, follow these steps:...
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practical packet analysis using wireshark to solve real world network problems phần 6 ppt
Ngày tải lên :
14/08/2014, 14:20
... traffic captures we need to take and where we need to place our analyzer on the network to get them The problem is being able to access the Internet, so the logical choice is to capture packets while ... the downto download a file from the FTP server load of a file from the server In packet 32, the client sends the RETR command to the server, requesting download of the file Music.mp3 Once the server ... sending the data to the client NOTE The packets labeled FTP-DATA are ones containing a file that is being downloaded from or uploaded to the server Telnet Protocol telnet.pcap NOTE The telnet protocol...
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practical packet analysis using wireshark to solve real world network problems phần 7 pdf
Ngày tải lên :
14/08/2014, 14:20
... If the button is pressed too much, you will not be able to catch all of the water in your mouth, so you must instruct the person to decrease the pressure on the button On the flip side, if the ... have to prove your assumptions to management, but sometimes you have to prove them to yourself In this case, the plaintext interpretation of the TCP stream can be shown to your supervisor to put ... to be shown The second packet is an ARP packet that we call a gratuitous ARP A gratuitous ARP is an ARP broadcast-type packet that is used to ensure that no other machine on the network has the...
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practical packet analysis using wireshark to solve real world network problems phần 8 ppt
Ngày tải lên :
14/08/2014, 14:20
... NOTE The phrase edge router describes the location of a router on a network An edge router sits on the network and connects that network to the outside world Tapping into the Wire Because the ... of these IP addresses not point to any companies or even to the same general area, but rather to different locations around the world To further evaluate the packets, you could see whether the ... to reach its destination While this is sometimes the case with email sent to other domains, even email they send to fellow employees within the same organization is taking forever Let’s get to...
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practical packet analysis using wireshark to solve real world network problems phần 9 potx
Ngày tải lên :
14/08/2014, 14:20
... administrators to gain administrative access to a network Others simply want to bring a network to its knees In this case we want to access a router on the network and then some serious damage Network ... of the company you are trying to break into, you have limited access to network resources The network is a run-ofthe-mill Ethernet network, and it utilizes a few switches and routers All of the ... of other mischievous things that will cause the network administrator severe headaches The point of this scenario is not to show you how to anger your network guys, but rather to demonstrate the...
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practical packet analysis using wireshark to solve real world network problems phần 10 doc
Ngày tải lên :
14/08/2014, 14:20
... the To DS field is 0, then the packet is traveling from the WAP to the wireless client If the values are the reverse, the packet is traveling from the wireless client to the WAP If both numbers ... physician Just as a doctor knows the human anatomy and the science behind medicine, a network administrator knows the elements of network architecture and the protocols behind a network Still, regardless ... comes to complex cases The same applies for network administrators The main goal of this book has been to introduce you to the tools and concepts that you must master in order to learn how to get...
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The role of the n terminal extension domain of vamp4 in the regulation of its recycling to the TRANS GOLGI network
Ngày tải lên :
11/09/2015, 09:02
... causes the actual toxic effects by inhibiting essential cytosolic reactions The toxins bind to the cell surface and are internalized into the cells They then undergo retrograde transport to the ... 2002) The LDL receptor is one such example It binds to extracellular LDL and as the receptor is packaged into clathrin-coated vesicles, LDL would be carried into the cell together with the receptor ... transport along the biosynthetic/secretory pathway In the biosynthetic/secretory pathway, newly made proteins first enter the pathway at the ER The ER has many ribosomes bound to its cytosolic side,...
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Migration to GPON practical considerations from the central office to the outside plant
Ngày tải lên :
03/12/2015, 22:31
... new network built to provide today’s services while adding the flexibility to handle future access technologies Migration to GPON - Practical Considerations from the Central Office to the Outside ... packaged services to business and residential customers The pressure is on for providers to make their networks GPON-ready from the central office (CO) to the outside plant (OSP) The importance ... service providers to migrate their networks to GPON First and foremost is the ability to offer their customers a much larger variety of services – not just today, but well into the future Technology,...
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implementing nap & nac security technologies - the complete guide to network access control
Ngày tải lên :
25/03/2014, 11:44
... felt the need to perform a level of analysis on devices trying to gain access to the network The major issues the university ran into with trying to put together this type of solution was the ... a technology to scan the devices when they came onto the network If they met the minimum requirements, then devices were allowed access If they didn’t, then they weren’t allowed access This sounds ... attempting to gain Layer access into the corporate network If the device’s security posture is deficient, access to the corporate network via the VPN can be denied or limited SSL VPN — This is similar to...
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Access Control Models: From the real-world to trusted computing potx
Ngày tải lên :
29/03/2014, 16:20
... should not be allowed to flow to high-integrity objects – High-integrity is placed at the top of the lattice and low integrity at the bottom Information flows from top to bottom (opposite direction ... of the matrix (e.g owner might be allowed to grant permission to another user to read a file) – Owner has complete discretion to change the access rules of an object it owns (discretionary access ... Mandatory Access Control (MAC) Models Mandatory Access Control (MAC): When a system mechanism controls access to an object and an individual user cannot alter that access, the control is mandatory...
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