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  • xmpp flow -server, client and library

    - by Him
    My complete requirement is development of a chat engine - including server, clients etc. Currently I am working on things at my desktop only but once done, I have to host it; basically incorporate it with in a site for chatting purpose. So, now my problem is: I am not clear about how the actual data flow is? I have googled and read about xmpp (a book by Peter Andre) also but I am not clear about the flow and what are the actual requirements to do the above mentioned task. What I currently know is: 1) I need a server - so selected ejabberd 2) I need client - still not sure which one to use and one other doubt is how this client thing will work when deployed on some website for chatting purpose. 3) Some library - don't know which one and what is the purpose? Can anyone guide me?

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  • Templates and Cross-domain client-side binding with RadGrid for ASP.NET AJAX

    Or yet another Twitter grid Yesterday, while I was playing around with this example of our MVC Grid, I thought that the RadGrid for ASP.NET AJAX deserves one too. What I like about this sample scenario is that it gives a perfect opportunity to demonstrate both how to do client cross-site request (as we have received a few questions through our support channels) and to check the future ASP.NET AJAX/jQuery client-side templates prototype.     A wiser guy once said a code sample is worth more than a 1000 words ;) That is why Ill keep it short and let you check the sample project.   Enjoy.Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Ways to prevent client seeing my code

    - by James Eggers
    I've got a bit of a strange problem.. Basically, I'm building a fairly complex (un-compiled, interpreted) program in Python. I've been working on most of this code for other purposes for a few months, and therefore don't want my client to be able to simple copy and paste it and then try and sell it (it's worth a fair amount). The other problem is that I need the script to run on a server that my client is paying for. Is there any way I can secure a particular folder on the machine from root access, make it so only one particular can access the directory? The OS is Ubuntu.

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  • Empathy sametime client id

    - by user91860
    I have been using Pidgin as an all-in-one IM client, but now as Empathy is the default app in Ubuntu I wanted to try it out. I have a sametime account at an external company that is keen to restrict access to their service from certain sametime client versions only. I was able to trick it with pidgin by specifying the following settings in accounts.xml: <setting name='client_minor' type='int'>8510</setting> <setting name='client_major' type='int'>30</setting> <setting name='client_id_val' type='int'>4876</setting> I tried to do the same in Empathy but I failed. As far as I know, Pidgin and Empathy use the same connector Plugin for sametime, so basically the functions should be there somewhere but there is little information about the configuration files and that doesn't discuss any sametime specific options.

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  • MVC 2 Client Side Model Validation with ExtJS

    One of the most exciting new features in MVC 2 is "Enhanced Model Validation support across both server and client"; this new enhanced support allows for client side validation to be dynamically generated into a view from DataAnnotations attributes on models. One minor complaint: Out of the box, it only supports the Microsoft AJAX libraries. Good news: It can use other frameworks, and we have done just that! Ext.ux.MvcFormValidator The MvcFormValidator is an alternative form validation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Arduino Ethernet Shield Not Connecting to WebServer

    - by new user
    I have a problem making my Arduino Ethernet shield to communicate with the server, the result on the serial monitor is always: my arduino code is #include <Ethernet.h> //library for ethernet functions #include <SPI.h> #include <Dns.h> #include <Client.h> //library for client functions #include <DallasTemperature.h> //library for temperature sensors // Ethernet settings byte mac[] = {0x09,0xA2,0xDA,0x00,0x01,0x26}; //Replace with your Ethernet shield MAC byte ip[] = { 192,168,0,54}; //The Arduino device IP address byte subnet[] = { 255,255,255,0}; byte gateway[] = { 192,168,0,1}; IPAddress server(192,168,0,53); // IP-adress of server arduino sends data to EthernetClient client; bool connected = false; void setup(void) { Serial.begin(9600); Serial.println("Initializing Ethernet."); delay(1000); Ethernet.begin(mac, ip , gateway , subnet); } void loop(void) { if(!connected) { Serial.println("Not connected"); if (client.connect(server, 80)) { connected = true; int temp =analogRead(A1); Serial.print("Temp is "); Serial.println(temp); Serial.println(); Serial.println("Sending to Server: "); client.print("GET /formSubmit.php?t0="); Serial.print("GET /formSubmit.php?t0="); client.print(temp); Serial.print(temp); client.println(" HTTP/1.1"); Serial.println(" HTTP/1.1"); client.println("Host: http://localhost/PhpProject1/"); Serial.println("Host: http://localhost/PhpProject1/"); client.println("User-Agent: Arduino"); Serial.println("User-Agent: Arduino"); client.println("Accept: text/html"); Serial.println("Accept: text/html"); //client.println("Connection: close"); //Serial.println("Connection: close"); client.println(); Serial.println(); delay(10000); } else{ Serial.println("Cannot connect to Server"); } } else { delay(1000); while (client.connected() && client.available()) { char c = client.read(); Serial.print(c); } Serial.println(); client.stop(); connected = false; } } the server is an Apache server running on a pc, the server ip address in the code is the pc ip address. For testing purposes I work at my homes network, there's no proxy or firewall, and I also turned of the antivirus and firewall on my pc. the result in the serial monitor is always: Not connected Cannot connect to Server Any thoughts??

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  • Browser connects to WCF service but not my WCF client. What can be the reason?

    - by Slauma
    On a production server (Windows Server 2003 SP2) I can connect to a remote WCF service with Internet Explorer 8: When I browse to the URL http://www.domain.com/Service.svc (where my service listens) I get the expected info page of the service displayed. Connection settings in Internet Explorer only specify "auto detect", proxy settings are disabled. If I start a console application (built with WCF in .NET 4.0) on the same server which also tries to connect to the same WCF service it fails telling me that no endpoint was available listening on http://www.domain.com/Service.svc. Configuration of the WCF client: <configuration> <system.serviceModel> <bindings> <wsHttpBinding> <binding name="WSHttpBinding_IMyService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /> <security mode="None"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true"/> </security> </binding> </wsHttpBinding> </bindings> <client> <endpoint address="http://www.domain.com/Service.scv" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IMyService" contract="Service.IMyService" name="WSHttpBinding_IMyService" /> </client> </system.serviceModel> <configuration> With these settings I can communicate successfully with the remote service from my development machine. Looking around for other options I found that I can specify to use the Internet Explorer proxy settings with: <system.net> <defaultProxy> <proxy usesystemdefault="true" /> </defaultProxy> </system.net> It didn't work and I am not sure if I understood this setting really correctly. (My hope was that the WCF client will adopt the "autodetect" setting of Internet Explorer and then connect the same way to the service like the installed IE.) I also had toggled the useDefaultWebProxy setting in the binding configuration between true and false with no success. Now I am asking for help what I can do? Which settings might be wrong or missing? What could I test and how can I get more detailed error messages to better identify the problem? Thank you in advance!

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  • Does each authenticated WCF client connection need a CAL?

    - by Sentax
    Just like the title says. Does each authenticated WCF client connection to a WCF server that you have developed need a windows CAL? http://www.microsoft.com/windowsserver2008/en/us/client-licensing.aspx Microsoft's licensing on that page sure makes it sound like it, but I can't find anything out there that confirms, or even denies this. Anyone know?

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  • Cloud computing over Client-server: differences, cons and pros ?

    - by Vimvq1987
    As far as I know, Cloud computing might be a evolution in software architect, and it will replace some current architectures, such as client-server. These two architecture seem to share similarities for me (I know very little about both), but I don't know the differences between them. What are the cons and pros of cloud computing over client-server architecture? Thank you so much.

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  • What's the best SOAP client library for Python, and where is the documentation for it?

    - by blackrobot
    I've never used SOAP before and I'm sort of new to Python. I'm doing this to get myself acquainted with both technologies. I've installed SOAPlib and I've tried to read their Client documentation, but I don't understand it too well. Is there anything else I can look into which is more suited for being a SOAP Client library for Python? Edit: Just in case it helps, I'm using Python 2.6.

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  • User created Validator wont call Client side validation Javascript on 'complex' user control.

    Hi All, I have created a user control (from System.Web.UI.UserControl), and created my own validator for the user control (from System.Web.UI.WebControls.BaseValidator). Everything works ok until I try to get the user control to do client side validation. While trying to debug this issue I have set 'Control to Validate' to a text box instead of the custom user control, and the client side script works fine! It appears to me that it has an a issue with my composite user control I have created. Has anyone encountered this issue before? Has anyone else seen client side validation fail on custom user controls? Some extra info : The composite control is a drop down list and 'loader image', as it is a ajax enabled drop down list (using ICallbackEventHandler). I know that the client side javascript is being written to the page, and have placed an alert('random message') as the first line in the validator function that only appears if it is validating a text box (i.e. not when it is validating my custom control) Language : C# (ASP.NET 2.0) and jQuery 1.2.6 in aspx file : <rms:UserDDL ID="ddlUserTypes" runat="server" PreLoad="true" /> <rms:DDLValidator ID="userTypesVal" ControlToValidate="ddlUserTypes" ErrorMessage="You have not selected a UserType" runat="server" Text="You have not selected a UserType" Display="Dynamic" EnableClientScript="true" /> in validator code behind protected string ScriptBlock { get { string nl = System.Environment.NewLine; return "<script type=\"text/javascript\">" + nl + " function " + ScriptBlockFunctionName + "(ctrl)" + nl + " {" + nl + " alert('Random message'); " + nl + " var selVal = $('#' + ctrl.controltovalidate).val(); " + nl + " alert(selVal);" + nl + " if (selVal === '-1') return false; " + nl + " return false; " + nl + " }" + nl + "</script>"; } } protected override void OnPreRender(EventArgs e) { if (this.DetermineRenderUplevel() && this.EnableClientScript) { Page.ClientScript.RegisterExpandoAttribute(this.ClientID, "evaluationfunction", this.ScriptBlockFunctionName); Page.ClientScript.RegisterClientScriptBlock(GetType(), this.ScriptBlockKey, this.ScriptBlock); } base.OnPreRender(e); } I know my ControlPropertiesValid() and EvaluateIsValid() work ok. I appreciate any help on this issue. Noel.

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  • How to develop a client-server seat booking program via java socket programming ?

    - by Haxed
    I have a project to develop a client server application in java. This is to be done using socket programming. Our lecturer, used 2 files, the TCPClient.java and TCPServer.java, to make a connection and we typed "Hi" in the client and the server displayed that message. I need to develop a seat booking application. Any suggestions for tutorials or tips or a book perhaps would be nice. Many Thanks

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  • Win Server 2k and Win 7 client

    - by Ray Kruse
    I have a Win Server 2000 system with AD configured. The network consists of an OKI printer, a network server, a wifi router a Win 2k client and the server. I'm trying to connect a Win 7 client. The purpose of the network, besides sharing equipment is to move files from client to client and scatter backups over more than 1 machine. The Win 7 client is configured for DHCP and does in fact receive it's IP and DNS configuration from the server and it sees the printer, wifi router and network drive, but does not see the Win 2k client nor the Win 2k server. I have tried the LAN Management Authentication Level set to 'Send LM & NTLM responses' with the 128 bit encryption removed. I've also done the registry hack on the key 'LmCompatibilityLevel'. Neither of these have helped. I have two questions: Is there a fix or is Win 2k totally incompatible? Is the best (or quickest/cheapest) fix to upgrade the server to Win 2k3 and not worry about the Win 2k client? Thanks for any help. Ray Kruse Buffalo, KY

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  • Force Juniper-network client to use split routing

    - by craibuc
    I'm using the Juniper client for OSX ('Network Connect') to access a client's VPN. It appears that the client is configured to not use split-routing. The client's VPN host is not willing to enable split-routing. Is there a way for me to over-ride this configuration or do sometime on my workstation to get the non-client network traffic to by-pass the VPN? This wouldn't be a big deal, but none of my streaming radio stations (e.g. XM) work will connected to their VPN. Apologies for any inaccuracies in the terminology. ** edit ** The Juniper client changes my system's resolve.conf file from: nameserver 192.168.0.1 to: search XXX.com [redacted] nameserver 10.30.16.140 nameserver 10.30.8.140 I've attempted to restore my preferred DNS entry to the file $ sudo echo "nameserver 192.168.0.1" >> /etc/resolv.conf but this results in the following error: -bash: /etc/resolv.conf: Permission denied How does the super-user account not have access to this file? Is there a way to prevent the Juniper client from making changes to this file?

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  • Possible to have different SSLCACertificateFiles under different Location in Apache (client side ssl certs)

    - by Mikko Ohtamaa
    I am setting up Apache to do smartcard authentication. The smartcard login is based on client-side SSL certificates handled by an OS driver. I have currently just one smartcard provider, but in the future there are potentially several of them. I am not sure how Apache 2.2. handles client-side certifications per Location. I did some quick testing and it somehow seemed that only the last SSLCACertificateFile directive would have been effective and this doesn't sound right. Is it possible to have different SSLCACertificateFile per Location in Apache (2.2, 2.4) as described below or is SSL protocol somehow limiting that you cannot have more than one SSLCACertificateFile per IP? Example potential config below how I wish to handle several SSLCACertificateFile on the same server to allow users to log in with different smartcard provides. <VirtualHost 127.0.0.1:443> # Real men use mod_proxy DocumentRoot "/nowhere" ServerName local-apache ServerAdmin [email protected] SSLEngine on SSLOptions +StdEnvVars +ExportCertData # Server-side HTTPS configuration SSLCertificateFile /etc/apache2/certificate-test/server.crt SSLCertificateKeyFile /etc/apache2/certificate-test/server.key # Normal SSL site traffic does not require verify client SSLVerifyClient none SSLVerifyDepth 999 # Provider 1 <Location /@@smartcard-login> SSLVerifyClient require SSLCACertificateFile /etc/apache2/certificate-test/ca.crt # Apache does not natively pass forward headers # created by SSLOptions +StdEnvVars, # so we pass them forward to Python using RequestHeader # from mod_headers RequestHeader set X-Client-DN %{SSL_CLIENT_S_DN}e RequestHeader set X-Client-Verify %{SSL_CLIENT_VERIFY}e </Location> # Provider 2 <Location /@@smartcard-login-provider-2> # For real SSLVerifyClient require SSLCACertificateFile /etc/apache2/certificate-test/provider2.crt # Apache does not natively pass forward headers # created by SSLOptions +StdEnvVars, # so we pass them forward to Python using RequestHeader # from mod_headers RequestHeader set X-Client-DN %{SSL_CLIENT_S_DN}e RequestHeader set X-Client-Verify %{SSL_CLIENT_VERIFY}e </Location> # Connect to Plone ZEO client1 running on fg ProxyPass / http://localhost:8080/VirtualHostBase/https/local-apache:443/folder_sits/sitsngta/VirtualHostRoot/ ProxyPassReverse / http://localhost:8080/VirtualHostBase/https/local-apache:443/folder_sits/sitsngta/VirtualHostRoot/ </VirtualHost>

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  • Do we need to adopt a black-box asset our project is inheriting from its predecessor?

    - by Tom Anderson
    Our client has an eCommerce site which was developed by an in-house team, and is now showing its age. I work for a firm brought in as external contractors to build a replacement. Part of the current site is a Flash viewer applet which displays media about the product - zoom-able images, 360-degree views, movies, and so on. We need to show the same media the current site does, so we are simply reusing the viewer. The viewer is embedded on a page in the usual way, and told what media to show by means of an XML file it loads from our server, which is pretty simple for us to generate. We've got this working; it was pretty straightforward. But what else do we need to do? The thing is, as far as we're concerned, the viewer is a binary blob which is served from the client's content-distribution network. We embed it, feed it some XML, and it does its job, but we have no power over its internals. It's completely opaque to us - a black box. We can use it to do what it does, but we can't change it, so if we ever need to do something different, we're stuffed. We're building this site for the client, and when we're done, we'll hand it over for them to maintain. We won't be doing the maintenance ourselves. There's a small team within the client who are working as part of our team, and who will be the ones doing the maintenance. That team only includes one person from the team that built the old site, and it's not someone who knows the image viewer. The people who do know the image viewer are not slated to join our team when our system replaces theirs - they'll be moved to other projects. The documentation on the viewer is extremely thin, and as far as i know doesn't cover the internals at all. My worry is that if someone doesn't take some positive action, all knowledge of the internal workings of the viewer - even down to where the source code for it is - will be lost. It's possible it already has been. Is this something to worry about? If so, whose job is it to worry about it? What should they do about it once they've got worried?

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