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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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  • Rails solution for mobile-specific content filter?

    - by Damien Roche
    To note, I'm not interested in simply 'hiding' content for mobile devices, I want to filter out that content completely. I'm also not trying to address the issue by building a mobile specific interface (mob.example.com). There was another question regarding something similar: How do I prevent useless content load on the page in responsive design? The solution, in that post, was to set a session during the initial request, and then use the session to filter content on subsequent requests. I primarily develop in Rails, and I'm wondering if there are any gems or ruby-specific solutions to this problem?

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  • How to distribute email's delivery between 2 or more servers

    - by user181186
    We provide Email Marketing service through our online App. We have about 30 customers. And each one has it's own mailling list (5k to 20k emails each). What we really want is to distribute email's delivery between 2 or more servers. I was wondering What kind of aproach/solutions MailChimp , Constant Contact uses to provide a great service ? use many servers ? many IPs ? Our spam policy suspends ANY user/customer that gets 10% bounced .

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  • Apache HttpClient CoreConnectionPNames.CONNECTION_TIMEOUT does nothing ?

    - by Maxim Veksler
    Hi, I'm testing some result from HttpClient that looks irrational. It seems that setting CoreConnectionPNames.CONNECTION_TIMEOUT = 1 has no effect because send request to different host return successfully with connect timeout 1 which IMHO can't be the case (1ms to setup TCP handshake???) Am I misunderstood something or is something very strange going on here? The httpclient version I'm using as can be seen in this pom.xml is <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.0.1</version> <type>jar</type> </dependency> Here is the code: import java.io.IOException; import java.util.Random; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.CoreConnectionPNames; import org.apache.http.util.EntityUtils; import org.apache.log4j.Logger; public class TestNodeAliveness { private static Logger log = Logger.getLogger(TestNodeAliveness.class); public static boolean nodeBIT(String elasticIP) throws ClientProtocolException, IOException { try { HttpClient client = new DefaultHttpClient(); // The time it takes to open TCP connection. client.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 1); // Timeout when server does not send data. client.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 5000); // Some tuning that is not required for bit tests. client.getParams().setParameter(CoreConnectionPNames.STALE_CONNECTION_CHECK, false); client.getParams().setParameter(CoreConnectionPNames.TCP_NODELAY, true); HttpUriRequest request = new HttpGet("http://" + elasticIP); HttpResponse response = client.execute(request); HttpEntity entity = response.getEntity(); if(entity == null) { return false; } else { System.out.println(EntityUtils.toString(entity)); } // Close just in case. request.abort(); } catch (Throwable e) { log.warn("BIT Test failed for " + elasticIP); e.printStackTrace(); return false; } return true; } public static void main(String[] args) throws ClientProtocolException, IOException { nodeBIT("google.com?cant_cache_this=" + (new Random()).nextInt()); } } Thank you.

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  • Center Page Content Horizontally using Div with CSS

    - by Aamir Hasan
    Center your website content to create equal sized Space from  the left and right using css. Horizontally centered by setting its right and left margin widths to "auto". This is the preferred way to accomplish horizontal centering with CSS. Create a warpper div which will hold your content div and then give it a margin:auto attribute which will bring your warpper div into center of page.<html><head><title>Center Page Content Horizontally and Vertically using Div with CSS </title> <style type="text/css">body{background-color:#eaeaea;}  #wrapper {width: 777px;margin:auto}  #content{background-color:#00FF00;min-height:400px;}  </style>  </head>  <body>  <form id="form1" runat="server">  <div id="wrapper"> <div id="wrapper">  <div id="content">  Welcome to Studentacad.com  </div>  </div>  </form>  </body></html>

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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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  • Affordable SEO Firm - Content is King - SEO Basics

    Content is the lifeblood of your Web site - it is what visitors use to determine value and what search engines valuate to rank your Web site. Well-written, original content is essential to the success of your Web site efforts. The quality of your content is directly proportional to how well you are likely to rank in search engines and whether a customer will purchase something from your Web site.

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  • XML DB Content Connector unable to accept binary content due to Invalid argument(s) in call oracle.sql.BLOB.setBinaryStream(0L)

    - by sthieme
    Dear Readers, I am working on implementing a custom Document Management System using the Oracle XML DB Content Connector. See the following documentation link for details Oracle XML DB Developer's Guide 11g Release 2 (11.2)Chapter 31 Using Oracle XML DB Content Connectorhttp://docs.oracle.com/cd/E11882_01/appdev.112/e23094/xdb_jcr.htm especially the following example gave me some trouble to run it successfully Sample Code to Upload Filehttp://docs.oracle.com/cd/E11882_01/appdev.112/e23094/xdb_jcr.htm#ADXDB5627 I had already succeeded to set some of the properties successfully, i.e. jcr:encoding, jcr:mimeType, ojcr:displayName and ojcr:language. However setting the jcr:data property as described in the example failed consistently, both with the documented input FileStream or with a fixed string. contentNode.setProperty("jcr:data", "mystringvalue"); After some research I found the following Support Note which describes the cause for the issue in the JDBC driver version 11.2.0.1. Error "ORA-17068: Invalid argument(s) in call" Using Method setBinaryStream(0L) in JDBC 11.2.0.1 (Doc ID 1234235.1)https://support.oracle.com/epmos/faces/DocContentDisplay?id=1234235.1It can easily be solved by upgrading to JDBC 11.2.0.2 or worked around using the following property setting: java -Doracle.jdbc.LobStreamPosStandardCompliant=false ... Kind regards,Stefan C:\Oracle\Database\product\11.2.0\dbhome_1>java -Doracle.jdbc.LobStreamPosStandardCompliant=false UploadFile jdbc:oracle:oci:@localhost:1522:orcl XDB welcome1 /public MyFile.txt text/plain 19.08.2014 11:50:26 oracle.jcr.impl.OracleRepositoryImpl login INFO: JCR repository descriptors: query.xpath.pos.index = true option.versioning.supported = false jcr.repository.version = 11.1.0.0.0 option.observation.supported = false option.locking.supported = false oracle.jcr.framework.version = 11.1.0.0.0 query.xpath.doc.order = false jcr.specification.version = 1.0 jcr.repository.vendor = Oracle option.query.sql.supported = false jcr.specification.name = Content Repository for Java Technology API level.2.supported = true level.1.supported = true jcr.repository.name = XML DB Content Connector jcr.repository.vendor.url = http://www.oracle.com oracle.jcr.persistenceManagerFactory = oracle.jcr.impl.xdb.XDBPersistenceManagerFactory option.transactions.supported = false 19.08.2014 11:50:26 oracle.jcr.impl.OracleRepositoryImpl login INFO: Session Session-1 connected for user id XDB 19.08.2014 11:50:27 oracle.jcr.impl.OracleSessionImpl logout INFO: Session-1: logout instead of C:\Oracle\Database\product\11.2.0\dbhome_1>java UploadFile jdbc:oracle:oci:@localhost:1522:orcl XDB welcome1 /public MyFile.txt text/plain 19.08.2014 10:56:39 oracle.jcr.impl.OracleRepositoryImpl login INFO: JCR repository descriptors: query.xpath.pos.index = true option.versioning.supported = false jcr.repository.version = 11.1.0.0.0 option.observation.supported = false option.locking.supported = false oracle.jcr.framework.version = 11.1.0.0.0 query.xpath.doc.order = false jcr.specification.version = 1.0 jcr.repository.vendor = Oracle option.query.sql.supported = false jcr.specification.name = Content Repository for Java Technology API level.2.supported = true level.1.supported = true jcr.repository.name = XML DB Content Connector jcr.repository.vendor.url = http://www.oracle.com oracle.jcr.persistenceManagerFactory = oracle.jcr.impl.xdb.XDBPersistenceManagerFactory option.transactions.supported = false 19.08.2014 10:56:39 oracle.jcr.impl.OracleRepositoryImpl login INFO: Session Session-1 connected for user id XDB Exception in thread "main" javax.jcr.RepositoryException: Unable to accept binary content at oracle.jcr.impl.ExceptionFactory.repository(ExceptionFactory.java:142) at oracle.jcr.impl.ExceptionFactory.otherwiseFailed(ExceptionFactory.java:98) at oracle.jcr.impl.xdb.XDBPersistenceManager.acceptBinaryStream(XDBPersistenceManager.java:1421) at oracle.jcr.impl.xdb.XDBResource.setContent(XDBResource.java:898) at oracle.jcr.impl.ContentNode.setProperty(ContentNode.java:472) at oracle.jcr.impl.OracleNode.setProperty(OracleNode.java:1439) at oracle.jcr.impl.OracleNode.setProperty(OracleNode.java:460) at UploadFile.main(UploadFile.java:54) Caused by: java.sql.SQLException: Invalid argument(s) in call at oracle.jdbc.driver.T2CConnection.newOutputStream(T2CConnection.java:2392) at oracle.sql.BLOB.setBinaryStream(BLOB.java:893) at oracle.jcr.impl.xdb.XDBPersistenceManager.acceptBinaryStream(XDBPersistenceManager.java:1393) ... 5 more

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  • Effective SEO Article Tutorials and Guide For Newbie Web Content Creators

    Getting updated knowledge for how to write SEO articles is essential because of the steady changes occurring in the search engine algorithms. There are certain challenges that most newbie content writers are facing when it comes to dealing with the issues like website content creation. With the introduction of Web 2.0, it is necessary to use high quality unique content in marketing products or services on the internet.

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  • Email Content creation | Proper design

    - by Umesh Awasthi
    Working on an E commerce application where we need to send so many email to customer like Registration email Forget Password Order placed There are many other emails that can be sent, I already have emailService in place which is responsible for sending email and It needs an Email object, Everything is working find, but I am struck at one point and not sure how best this can be done. We need to create content so as it can be passed to emailService and not sure how to design this. For example, in Customer registration, I have a customerFacade which is working between Controller and ServiceLayer, I just want to delegate this Email Content creation work away from Facade layer and to make it more flexible. Currently I am creating Registration email content inside customerFacade and some how I am not liking this way, since that means for each email, I need to create content in respective Facade. What is best way to go or current approach is fine enough?

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  • Recursive XSLT, part 2

    - by Eric
    Ok, following on from my question here. Lets say my pages are now like this: A.xml: <page> <header>Page A</header> <content-a>Random content for page A</content-a> <content-b>More of page A's content</content-b> <content-c>More of page A's content</content-c> <!-- This doesn't keep going: there are a predefined number of sections --> </page> B.xml: <page include="A.xml"> <header>Page B</header> <content-a>Random content for page B</content-a> <content-b>More of page B's content</content-b> <content-c>More of page B's content</content-c> </page> C.xml: <page include="B.xml"> <header>Page C</header> <content-a>Random content for page C</content-a> <content-b>More of page C's content</content-b> <content-c>More of page C's content</content-c> </page> After the transform (on C.xml), I'd like to end up with this: <h1>Page C</h1> <div> <p>Random content for page C</p> <p>Random content for page B</p> <p>Random content for page A</p> </div> <div> <p>More of page C's content</p> <p>More of page B's content</p> <p>More of page A's content</p> </div> <div> <p>Yet more of page C's content</p> <p>Yet more of page B's content</p> <p>Yet more of page A's content</p> </div> I know that I can use document(@include) to include another document. However, the recursion is a bit beyond me. How would I go about writing such a transform?

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  • Configuring UCM content cache invalidation for a custom portal application

    - by Martin Deh
    Recently, I had blogged about enabling the UCM content cache invalidator for Spaces (found here).  This can also be enabled for a WebCenter Custom Portal application as well.  The much overlooked setting is done through the Content Repository connection definition in the JDeveloper Application Resources section.   Enabling the cache invalidator "sweeper" can be invaluable, where UCM content is being updated from within UCM (console) and not within the portal.

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  • Portal and Content - Components, part 3 – Applied Customization Framework (4 of 7)

    - by Stefan Krantz
    Have you ever been challenged with the situation where your work task asks you to implement functionality in the WebCenter Portal and you browse through the Resource Catalog (Business Dictionary) and find the functionality you need. However when you get started there is small short comings and you ask your self- how can I re-use what is out of the box ca?- I wonder what code I need to use to produce the similar functions and include my new requirements?- Must I write a new taskflow? The answer to above questions are in many times answered with simply you can  do a taskflow customization to out-of-the-box taskflows. In this post I will help you understand how to do such customization. Best described is a 4 step process, see image flow below for illustration: Just to clarify few naming confusions that might occur when go through above process. Customization Role is a function within JDeveloper that will allow you to implement view and flow customizations to existing taskflows WebCenter Portal – Spaces Taskflow Customization Framework this technology scope do not only refer to WebCenter Spaces, this also include WebCenter Portal/Framework A taskflow customization do not overwrite or replace any code, it just creates an additional tip view of the taskflow in the MDS for the current application (WebCenter Portal or WebCenter Spaces) To sum up this simple procedure I also like to help you find your way around the main topic for this post series, this post series is focusing primarily on Content integration with WebCenter Portal, so where can I find content related taskflows in the WebCenter Libraries. The list below mention some useful locations to taskflows and each taskflow page fragments. Library Reference - WebCenter Document Library Service View Content Presenter Path: oracle.webcenter.doclib.view.jsf.taskflows.presenterTaskflow: contentPresenter.xml - The Content Presenter taskflowTaskflow: contentPresenterWizard.xml - The publishing wizard to select content, select template and preview including contributionDocument Manager Path: oracle.webcenter.doclib.view.jsf.taskflows.docManager Taskflow: documentManager.xml - The Document Manager taskflow which includes references to document management feature including browsing, download, uploading and viewing. For more information on Taskflow customizations please see following documentation:http://docs.oracle.com/cd/E23943_01/webcenter.1111/e10148/jpsdg_taskflows.htm#BACIEGJD

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  • Inform me when site (server) is online again

    - by dede
    When I ping one site it returns "Request timed out". I want to make little program that will inform me (sound beep or something like that) when this server is online again. No matter in which language. I think it should be very simple script with a several lines of code. So how to write it?

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  • Avoid Ajax loaded content for search engine bots

    - by Majiy
    A website I run has a lot of content that is being loaded using Ajax. The reason for using Ajax is that the content generation takes some time (a few seconds), because it loads data from other websites using their respective APIs. My concern is, that search engine bots will not see any useful content. The solution I've been thinking about would be to serve search engine bots differently, so that the content will be displayed directly for them. Technically, this would not be a big problem. My question is: Will search engines (read: Google) consider this behaviour as website cloaking? Are there other concerns I might not have considered?

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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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  • Master Writing Great SEO Content

    Content is King in the Internet. While creating a website nowadays is easy with site builders and templates, to date no such magic template exists for writing SEO content. Internet marketers continuously need fresh content to rank well in search engines, generate volumes of traffic and keep their audience glued for more.

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  • C# Detect Localhost Port Usage

    - by ThaKidd
    In advance, thank you for your advice. I am currently working on a program which uses Putty to create a SSH connection with a server that uses local port forwarding to enable a client, running my software, to access the service behind the SSH server via localhost. IE: client:20100 - Internet - Remote SSH server exposed via router/firewall - Local Intranet - Intranet Web POP3 Server:110. Cmd Line: "putty -ssh -2 -P 22 -C -L 20100:intranteIP:110 -pw sshpassword sshusername@sshserver" Client would use putty to create a SSH connection with the SSH server specifying in the connection string that it would like to tie port 110 of the Intranet POP3 Server to port 20100 on the client system. Therefore the client would be able to open up a mail client to localhost:20100 and interact with the Internal POP3 server over the SSH tunnel. The above is a general description. I already know what I am trying to do will work without a problem so am not looking for debate on the above. The question is this...How can I ensure the local port (I cannot use dynamic ports, so it must be static) on localhost is not being used or listened to by any other application? I am currently executing this code in my C# app: private bool checkPort(int port) { try { //Create a socket on the current IPv4 address Socket TestSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); // Create an IP end point IPEndPoint localIP = new IPEndPoint(IPAddress.Parse("127.0.0.1"), port); // Bind that port TestSocket.Bind(localIP); // Cleanup TestSocket.Close(); return false; } catch (Exception e) { // Exception occurred. Port is already bound. return true; } } I am currently calling this function starting with a specific port in a for loop to get the 'false' return at the first available port. The first port I try is actually being listened to by uTorrent. The above code does not catch this and my connection fails. What is the best method to ensure a port is truly free? I do understand some other program may grab the port during/after I have tested it. I just need to find something that will ensure it is not currently in use AT ALL when the test is executed. If there is a way to truly reserve the localhost port during the test, I would love to hear about it.

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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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