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• PHP: upload files to network shared folder

  - by Xi

  Hi there: I have a problem uploading file to a network shared folder. I can connect to the folder by using windows authentication in IE. The script is as followed: $target_path = '\\\\server\\images\\'; $target_path = $target_path . basename( $_FILES['uploadedfile']['name']); if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) { echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded"; } else{ echo "There was an error uploading the file, please try again!"; } when i ran it , I got an error message read: Warning: move_uploaded_file(\server\images\pic_firefox.jpg) [function.move-uploaded-file]: failed to open stream: Permission denied in C:\xxxxxxxxx\uploader.php on line 6 I thought that's because windows authentication doesn't work this way. Is there a way I can upload the file by using username/password? Any thoughts would be appreciated.

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• What's the best way to Notify network users of outages or maintenance

  - by Dubs

  There are times when one of our applications is down for maintenance and we'd like to let our users know about it before they start flooding our help desk with calls. What's the best way to notify our users of an event on the network? Some users are on our intranet, while others log in from the Web. Is there an application they can install to which we can send notifications messages? I'm interested to hear what others have come up with to address this requirement. Thanks!

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• Programatically check whether a drive letter is a shared/network drive

  - by Philip Daubmeier

  Hi SO community! I searched a while but found nothing that helped me. Is there a way to check whether a drive letter stands for a shared drive/network drive or a local disc in python? I guess there is some windows api function that gives me that info, but I cant find it. Perhaps there is even a method already integrated in python? What I am looking for is something with this or similar behaviour: someMagicMethod("C:\") #outputs True 'is a local drive' someMagicMethod("Z:\") #outputs False 'is a shared drive' That would help me as well: someMagicMethod2() #outputs list of shared drive letters Thanks a lot in advance!

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• Error while storing to a shared network drive when running website on IIS

  - by vini

  System.UnauthorizedAccessException: Access to the path '\\192.168.0.99\c$\DTA\DTA564348.64U20121217161754.dta' is denied. When i store the file by running on my local asp.net website it works fine and gets stored on the shared network drive However when i run this through IIS i get the above error C# Code StrPath = FilePhypath.ToString(); Web.Config <location allowOverride="true"> <appSettings> <add key="FilephyPath" value="\\192.168.0.99\c$\DTA\"/> </appSettings> </location>

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• Connect 4 with neural network: evaluation of draft + further steps

  - by user89818

  I would like to build a Connect 4 engine which works using an artificial neural network - just because I'm fascinated by ANNs. I'be created the following draft of the ANN structure. Would it work? And are these connections right (even the cross ones)? Could you help me to draft up an UML class diagram for this ANN? I want to give the board representation to the ANN as its input. And the output should be the move to chose. The learning should later be done using backpropagation and the sigmoid function should be applied. The engine will play against human players. And depending on the result of the game, the weights should be adjusted then.

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• Question about Convolutional neural network.

  - by Nhu Phuong

  I readed few book and acticles about Convolutional neural network, it seem I understand the concept but I don't know how to put it up like in image below: from 28x28 normalized pixel INPUT we get 4 feature map 24x24. but how to get them ? size the INPUT image ? or perform image transformation? but what kind of transformation? or cut up the input image to 4 piece 24x24 by 4 corner? I don't understand the process to me it seem they cut up or resize the image to more smaller at each step. please help thanks.

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• Neural Network Inputs and Outputs to meaningful values

  - by Micheal

  I'm trying to determine how to transform my "meaningful input" into data for an Artificial Neural Network and how to turn the output into "meaningful output". The way I can always see of doing it is by convering everything to categories with binary values. For example, rather than outputting age, having a 0-1 for <10, a 0-1 for 10 - 19, etc. Same with the inputs, where I might be using for example, hair colour. Is the only way to turn this into input to have Blonde 0-1, Brown 0-1, etc? Am I missing some entire topic of ANNs? Most of the books and similar I read use theoretical examples.

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• .NET Neural Network or AI for Future Predictions

  - by Ian

  Hi All. I am looking for some kind of intelligent (I was thinking AI or Neural network) library that I can feed a list of historical data and this will predict the next sequence of outputs. As an example I would like to feed the library the following figures 1,2,3,4,5 and based on this, it should predict the next sequence is 6,7,8,9,10 etc. The inputs will be a lot more complex and contain much more information. This will be used in a C# application. If you have any recommendations or warning that will be great. Thanks

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• Probability and Neural Networks

  - by Betamoo

  Is it a good practice to use sigmoid or tanh output layers in Neural networks directly to estimate probabilities? i.e the probability of given input is the output of sigmoid function in the NN

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• SNMP Broadcast on Windows

  - by SNMP Dev

  I'm writing an SNMP agent in windows. The agent responds fine simple get and get-next request sent directly to computer's ip address. But when I do a SNMP broadcast, the computer receives the packet but does not anwer that. Why is that? The firewall is off and the antivirus too.

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• Plain-English tutorial on artificial neural networks?

  - by Stuart

  I've Googled, StackOverflowed, everything, and I cannot seem to find a tutorial I can understand. I understand the concept of genetic algorithms, and how to implement them, (Though I haven't tried) but I cannot grasp the concept of neural networks. I know vaguely how they work... And that's about it. Could someone direct me to a tutorial that could help someone who has not even graduated middle school yet? Sure, I'm several years ahead of the majority of people my grade, but I don't understand summation, (which I apparently need if I don't want a simple binary output) vectors, and other things that I apparently should know. Is there a simple, bare-bones tutorial for neural networks? After I learn the basics, I'll proceed to more difficult ones. Preferably, they would be in Java. Thanks!

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• Monitor network connectivity in WP7 apps

  - by Daniel Moth

  Most interesting Windows Phone apps rely on some network service for their functionality. So at some point in your app you may need to know programmatically if there is network connection available or not. For example, the Translator by Moth app relies on the Bing Translation service for translations. When a request for translation (text or voice) is made, the network call may fail. The failure reason is not evident from any of the return results, so I check the connection to see if it is present. Dependent on that, a different message is shown to the user. Before the translation phase is even reached, at the app start up time the Bing service is queried for its list of  languages; in that case I don't want to show the user a message and instead want to be notified when the network is available in order to send the query out again. So for those two requirements (which I imagine are common in other apps) I wrote a simple wrapper MyNetwork static class to the framework APIs: Call once MyNetwork.MonitorNetworkAvailability() method so it monitors the network change At any time check the MyNetwork.IsConnected property to check for network presence Subscribe to its MyNetwork.ConnectionEstablished event Optionally, during debugging use its MyNetwork.ChangeStatus method to simulate a change in network status As usual, there may be better ways to achieve this, but this class works perfectly for my scenarios. You can download the code here: MyNetworks.cs. Comments about this post welcome at the original blog.

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• Artifical neural networks height-weight problem

  - by hammid1981

  i plan to use neurodotnet for my phd thesis, but before that i just want to build some small solutions to get used to the dll structure. the first problem that i want to model using backward propagation is height-weight ratio. I have some height and weight data, i want to train my NN so that if i put in some weight then i should get correct height as a output. i have 1 input 1 hidden and 1 output layer. Now here is first of many things i cant get around :) 1. my height data is in form of 1.422, 1.5422 ... etc and the corresponding weight data is 90 95, but the NN takes the input as 0/1 or -1/1 and given the output in the same range. how to address this problem

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• whats the diference between train, validation and test set, in neural networks?

  - by Daniel

  Im using this library http://pastebin.com/raw.php?i=aMtVv4RZ to implement a learning agent. I have generated the train cases, but i dont know for sure what are the validation and test sets, the teacher says: 70% should be train cases, 10% will be test cases and the rest 20% should be validation cases. Thanks. edit i have this code, for training.. but i have no ideia when to stop training.. def train(self, train, validation, N=0.3, M=0.1): # N: learning rate # M: momentum factor accuracy = list() while(True): error = 0.0 for p in train: input, target = p self.update(input) error = error + self.backPropagate(target, N, M) print "validation" total = 0 for p in validation: input, target = p output = self.update(input) total += sum([abs(target - output) for target, output in zip(target, output)]) #calculates sum of absolute diference between target and output accuracy.append(total) print min(accuracy) print sum(accuracy[-5:])/5 #if i % 100 == 0: print 'error %-14f' % error if ? < ?: break

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• Search network device from LAN through my C++ application and change the IP address

  - by Arun Kumar K S

  I am developing an application in C++ to communicate with my network device. I used UDP classes to search the device from the network. I done the code in such a way that from my application a broadcast message will send to the local network. The device will respond to the broadcast message and the application will get the IP address from that response. After establishing a network communication send a message to the device for changing the IP address. That worked fine if my devices IP address is correct. But when I set a wrong IP address and subnet to the device. My application will never get any messages from the device. So I can't able communicate to the device and not able get the device and unable to change the IP address etc. Say example IP address of the device 20.1.1.1 Subnet Mask 255.0.0.0 And in my system that runs the application IP address 192.168.1.23 Subnet Mask 255.255.255.0 I tried the Lantronix device installation software with their Lantronix device in network. It listed the device from the network and I am able to change the IP address from their software. Any one know how this is done in this type of software? How I can search in network to find the device and change the IP address when its IP address is not in range? Which protocol they used to find the device?

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• How to migrate existing udp application to raw sockets

  - by osgx

  Hello Is there a tutorial for migration from plain udp sockets (linux, C99/C++, recv syscall is used) to the raw sockets? According to http://aschauf.landshut.org/fh/linux/udp_vs_raw/ch03s04.html raw socket is much faster than udp. Application is client-server. client is proprietary and must use exactly same procotol as it was with udp server. But server can be a bit faster with raw sockets. What parts of udp I must to implement in server? Is there a "quick migration" libraries?

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• Neural Networks test cases

  - by Betamoo

  Does increasing the number of test cases in case of Precision Neural Networks may led to problems (like over-fitting for example)..? Does it always good to increase test cases number? Will that always lead to conversion ? If no, what are these cases.. an example would be better.. Thanks,

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• Python: How to transfer varrying length arrays over a network connection

  - by Devin

  Hi, I need to transfer an array of varying length in which each element is a tuple of two integers. As an example: path = [(1,1),(1,2)] path = [(1,1),(1,2),(2,2)] I am trying to use pack and unpack, however, since the array is of varying length I don't know how to create a format such that both know the format. I was trying to turn it into a single string with delimiters, such as: msg = 1&1~1&2~ sendMsg = pack("s",msg) or sendMsg = pack("s",str(msg)) on the receiving side: path = unpack("s",msg) but that just prints 1 in this case. I was also trying to send 4 integers as well, which send and receive fine, so long as I don't include the extra string representing the path. sendMsg = pack("hhhh",p.direction[0],p.direction[1],p.id,p.health) on the receive side: x,y,id,health = unpack("hhhh",msg) The first was for illustration as I was trying to send the format "hhhhs", but either way the path doesn't come through properly. Thank-you for your help. I will also be looking at sending a 2D array of ints, but I can't seem to figure out how to send these more 'complex' structures across the network. Thank-you for your help.

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• Help understanding unipolar transfer function

  - by locky28

  There is a question I am stuck on using the following formula for the unipolar transfer function: f(net)= 1 __________ -net 1 + e The example has the following: out = 1 ____________ = 0.977 -3.75 1 + e How do we arrive at 0.977? What is e?

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• How can I share the TV card on my home network? with a solution like `ln -s`?

  - by Boris

  My environment: - 2 PCs, a desktop and a laptop, both on Oneiric - they are connected together by ethernet wire - nfs-common is installed and configured: the desktop is the server - a TV tuner card is installed on the desktop, I can watch the French TNT TV with the software Me-TV It works fine, TV on desktop, and my network too: I share folders thanks to NFS. But I would like more: how can I share my TV tuner card from the desktop and be able to watch TV on the laptop too? If possible I would like a solution that allows me to keep using the software Me-TV, on both PCs. I bet that there is a solution to create a fake TV card on the 2nd PC. Something like ln -s on /dev/dvb/adapter0/.

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• Internet Protocol Suite: Transition Control Protocol (TCP) vs. User Datagram Protocol (UDP)

  How do we communicate over the Internet?  How is data transferred from one machine to another? These types of act ivies can only be done by using one of two Internet protocols currently. The collection of Internet Protocol consists of the Transition Control Protocol (TCP) and the User Datagram Protocol (UDP).  Both protocols are used to send data between two network end points, however they both have very distinct ways of transporting data from one endpoint to another. If transmission speed and reliability is the primary concern when trying to transfer data between two network endpoints then TCP is the proper choice. When a device attempts to send data to another endpoint using TCP it creates a direct connection between both devices until the transmission has completed. The direct connection between both devices ensures the reliability of the transmission due to the fact that no intermediate devices are needed to transfer the data. Due to the fact that both devices have to continuously poll the connection until transmission has completed increases the resources needed to perform the transmission. An example of this type of direct communication can be seen when a teacher tells a students to do their homework. The teacher is talking directly to the students in order to communicate that the homework needs to be done.  Students can then ask questions about the assignment to ensure that they have received the proper instructions for the assignment. UDP is a less resource intensive approach to sending data between to network endpoints. When a device uses UDP to send data across a network, the data is broken up and repackaged with the destination address. The sending device then releases the data packages to the network, but cannot ensure when or if the receiving device will actually get the data.  The sending device depends on other devices on the network to forward the data packages to the destination devices in order to complete the transmission. As you can tell this type of transmission is less resource intensive because not connection polling is needed,  but should not be used for transmitting data with speed or reliability requirements. This is due to the fact that the sending device can not ensure that the transmission is received.  An example of this type of communication can be seen when a teacher tells a student that they would like to speak with their parents. The teacher is relying on the student to complete the transmission to the parents, and the teacher has no guarantee that the student will actually inform the parents about the request. Both TCP and UPD are invaluable when attempting to send data across a network, but depending on the situation one protocol may be better than the other. Before deciding on which protocol to use an evaluation for transmission speed, reliability, latency, and overhead must be completed in order to define the best protocol for the situation.  

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• Why do my backup fail when I target a network share hosted by a Synology DS211 disk station?

  - by Larry

  My backups are failing when I try to use a network share hosted by a Synology DS211 disk station. They work fine if I target a different network share (i.e. \server1\data\larry). When I run the following command: Wbadmin start backup -backupTarget:\\diskstation\backup-larry -include:C: This is what I get: wbadmin 1.0 - Backup command-line tool (C) Copyright 2004 Microsoft Corp. Note: The backed up data cannot be securely protected at this destination. Backups stored on a remote shared folder might be accessible by other people on the network. You should only save your backups to a location where you trust the other users who have access to the location or on a network that has additional security precautions in place. Retrieving volume information... This will back up volume WIN7(C:) to \\diskstation\backup-larry. Do you want to start the backup operation? [Y] Yes [N] No y Note: The list of volumes included for backup does not include all the volumes that contain operating system components. This backup cannot be used to perform a system recovery. However, you can recover other items if the destination media type supports it. The backup operation to \\diskstation\backup-larry is starting. Creating a shadow copy of the volumes specified for backup... Creating a shadow copy of the volumes specified for backup... The backup operation stopped before completing. Summary of the backup operation: ------------------ The backup operation stopped before completing. Detailed error: Access is denied. Windows Backup failed to write the file: '<backup location>\WindowsImageBackup\<Computer Name>\MediaId'. Access is denied. The backup creates the following path \\diskstation\backup-larry\WindowsImageBackup\LARRY-MYDOMAIN\ but its empty. I definitely have read/write access on the target directory (\diskstation\backup-larry). I have verified this by looking at the permission and by actually copying files to this location. Any suggestions?

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• XenServer 5.5 running WHS.. trying to add local or network printer/scanner/copier

  - by ProstheticHead

  Hi guys. Just wondering if anyone has prior experience in sharing a multifunction printer across a (mostly windows) network? My situation at the minute is complicated.. I DID have the printer attached directly to a Windows Home Server box and was able to scan to a share and print across the network from my other computers. Compatibility problems have forced me to virtualize WHS on XenServer 5.5... This is actually quite useful because I can now run other things on the same box, but the problem is that now WHS doesn't get direct hardware access so it doesn't see a USB attached PSC... Grrrr! So now I have a choice to make. I've read somewhere that I can buy an add in PCI USB controller and somehow set up a passthrough to one VM at a time. To me, this sound complicated but if it's likely to work reliably I'd prefer this method. I've read about another approach, which I'm not sure about either, but I guess sounds plausible. A Network USB server, (NOT a print server) that can somehow make a USB port accessible across a network. My worry here is that it likely needs some kind of 3rd party software to work.. so not ideal. If there are any other methods you can suggest I'd be happy to hear them... I need your help guys. I'm also in the market for a PCI express SATA controller, nothing flashy, just need up to 8 ports, JBOD and 100% compatability.. Any suggestions? Regards Kevin

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• Two IP ranges on eth1 configuration for centos 6.2

  - by Trickzzz

  i have a dedicated server, with "Virtuozzo" on it running VPS's. I have: eth0 - which is configured to the internal network, that one is fine. Now I have: eth1 - which has two ranges routed through this device. x.x.134.x (which has 12 IP's sequentially) x.x.132.x (which has 5) eth1: DEVICE="eth1" HWADDR="00:25:90:37:65:67" NM_CONTROLLED="yes" ONBOOT="yes" IPADDR="x.x.134.x" NETMASK="255.255.255.240" GATEWAY="x.x.134.x" I tried using this with another file as well named "ifcfg-eth1:1" in /etc/sysconfig/network-scripts/ any ideas why the containers on eth1:1 would not link up to the network? Virtuozzo also thinks that eth1:1 is the primary network now, which isn't right?

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• SQL SERVER – Mirroring Configured Without Domain – The server network address TCP://SQLServerName:50

  - by pinaldave

  Regular readers of my blog will be aware of my friend who called me few days ago with very a funny SQL Problem SQL SERVER – SSMS Query Command(s) completed successfully without ANY Results. This time, it did not take long before he called me up with another interesting problem, although the issue he was facing this time was not that interesting and also very specific to him, however, he insisted me to share with all of you. Let us understand his situation at first. My friend is preparing for DBA exam Exam 70-450: PRO: Designing, Optimizing and Maintaining a Database Server Infrastructure using Microsoft SQL Server 2008 and for the same, he was trying to set up replication on his local laptop. He had installed two different instances of SQL Server on his computer and every time when he started the mirroring, it failed with common error message. The server network address “TCP://SQLServer:5023? cannot be reached or does not exist. Check the network address name and that the ports for the local and remote endpoints are operational. (Microsoft SQL Server, Error: 1418) Well, before he contacted me, he searched online and checked my article written on the error in mirroring. However, he tried all the four suggestions, but it did not solve his problem. He called me at a reasonable time of late evening (unlike last time, which was midnight!). I even tried all the seven different suggestions myself, as previously proposed in my article; however, none of them worked. While looking at closely at services, I noticed something very simple. He was running all the instances on ‘Network Services’. In fact, his computer was a stand-alone computer. There was no network at all. Also, there was no domain or any other advance network concepts implemented. I just changed services from ‘Network Services’ to ‘Local System’ as his SQL Server was running on his local system and there were no network services. This prompted to restart the services. As this was not the production server and his development machine, we restarted the services on the laptop (do not restart services on production server without proper planning). After changing the ‘services log on’ account to localsystem, when he attempted to reconfigure the mirroring it worked right away. As usually in production server, proper domains are configured and advance network concepts are implemented I had never faced this type of problem earlier. My friend insisted to post this solution to his situation, wherein there was no domain configured and setting up mirroring was throwing an error. According to him, this is bound to help people, like him, who are preparing for certification using single system. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Error Messages, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: SQL Certifications, SQL Mirroring

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