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• How to find out memory layout of your data structure implementation on Linux 64bit machine

  - by ajay

  In this article, http://cacm.acm.org/magazines/2010/7/95061-youre-doing-it-wrong/fulltext the author talks about the memory layouts of 2 data structures - The Binary Heap and the B-Heap and compares how one has better memory layout than the other. http://deliveryimages.acm.org/10.1145/1790000/1785434/figs/f5.jpg http://deliveryimages.acm.org/10.1145/1790000/1785434/figs/f6.jpg I want to get hands on experience on this. I have an implementation of a N-Ary Tree and I want to find out the memory layout of my data structure. What is the best way to come up with a memory layout like the one in the article? Secondly, I think it is easier to identify the memory layout if it is an array based implementation. If the implementation of a Tree uses pointers then what Tools do we have or what kind of approach is required to map it's memory layout? Thanks!

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• configure squid3 to set up a web proxy in ubuntu12.04

  - by Gnijuohz

  I am in a LAN and have to use a proxy given to access the web in a very limited way. I can't even use google, github.com or SE sites. However I can use ssh to log into a server, which I have root access so basically I can do anything I want with it. So I was thinking that maybe I could use that server as a proxy so I can visit sites through it. I tested it using ssh -vT [email protected] which gave a proper response. And In my computer I can't do this. Also I tried downloading something from the gun.org using wget, which can't be done in my computer too. And it succeeded on that server. I don't know if that's enough to say that this server have full access to the Internet. But I assumed so and I installed squid3 on it. After trying some while, I failed to get it working. I got this after I run squid3 -k parse 2012/07/06 21:45:18| Processing Configuration File: /etc/squid3/squid.conf (depth 0) 2012/07/06 21:45:18| Processing: acl manager proto cache_object 2012/07/06 21:45:18| Processing: acl localhost src 127.0.0.1/32 ::1 2012/07/06 21:45:18| Processing: acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 2012/07/06 21:45:18| Processing: acl localnet src 10.1.0.0/16 # RFC1918 possible internal network 2012/07/06 21:45:18| Processing: acl SSL_ports port 443 2012/07/06 21:45:18| Processing: acl Safe_ports port 80 # http 2012/07/06 21:45:18| Processing: acl Safe_ports port 21 # ftp 2012/07/06 21:45:18| Processing: acl Safe_ports port 443 # https 2012/07/06 21:45:18| Processing: acl Safe_ports port 70 # gopher 2012/07/06 21:45:18| Processing: acl Safe_ports port 210 # wais 2012/07/06 21:45:18| Processing: acl Safe_ports port 1025-65535 # unregistered ports 2012/07/06 21:45:18| Processing: acl Safe_ports port 280 # http-mgmt 2012/07/06 21:45:18| Processing: acl Safe_ports port 488 # gss-http 2012/07/06 21:45:18| Processing: acl Safe_ports port 591 # filemaker 2012/07/06 21:45:18| Processing: acl Safe_ports port 777 # multiling http 2012/07/06 21:45:18| Processing: acl CONNECT method CONNECT 2012/07/06 21:45:18| Processing: http_port 3128 transparent vhost vport 2012/07/06 21:45:18| Starting Authentication on port [::]:3128 2012/07/06 21:45:18| Disabling Authentication on port [::]:3128 (interception enabled) 2012/07/06 21:45:18| Disabling IPv6 on port [::]:3128 (interception enabled) 2012/07/06 21:45:18| Processing: cache_mem 1000 MB 2012/07/06 21:45:18| Processing: cache_swap_low 90 2012/07/06 21:45:18| Processing: coredump_dir /var/spool/squid3 2012/07/06 21:45:18| Processing: refresh_pattern ^ftp: 1440 20% 10080 2012/07/06 21:45:18| Processing: refresh_pattern ^gopher: 1440 0% 1440 2012/07/06 21:45:18| Processing: refresh_pattern -i (/cgi-bin/|?) 0 0% 0 2012/07/06 21:45:18| Processing: refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880 2012/07/06 21:45:18| Processing: refresh_pattern . 0 20% 4320 2012/07/06 21:45:18| Processing: ipcache_high 95 2012/07/06 21:45:18| Processing: http_access allow all I deleted some allow and deny rules and added http_access allow all so that all the request would be allowed. After configuring my computer, I got this error: Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect. And the log in the server showed that my TCP requests had all been denied. So, first of all, is what I am trying to do achievable? If so, how to configure the squid in the server so that I use it as a proxy to surf the Internet? My computer and the server both run Ubuntu11.04. Thanks for any help~

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• Google Maps API Geocode gives error "Invalid label" in Firefox

  - by Bennystijn

  Today I struggled with the following: $.ajax({url:'http://maps.google.com/maps/api/geocode/jsonaddress=Karachi&sensor=false&output=json&callback=?', dataType: 'json', success: function(data){ //eval("("+data+")"); alert(data); } }); Firefox gives the error "Invalid Label" and Chrome "Uncaught SyntaxError: Unexpected token :". I found a lot of posts about this, and I tried all kinds of things like eval(), but also: $.getJSON('http://maps.google.com/maps/api/geocode/jsonaddress=Karachi&sensor=false&output=json&callback=?', function(data){ //eval("("+data+")"); alert(data); } ); Same result. Also, other json data works fine, for instance flickr ("http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?). So it has something to do with the Google Maps API output i guess.. Thanks in advance.

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• Passing Certificate to Svcutil to generate proxy for OSB Service

  - by webwires

  We are wanting to implement Two-Way SSL security from WCF to OSB Services. We have successfully deployed the certificates so that when you browse to the service with IE you get the appropriate prompt for certificate and then it takes you immediately to the WSDL. But, when you attempt to generate a proxy using svcutil as defined in steps 8 and 9 in this MSDN article. http://msdn.microsoft.com/en-us/library/cc949005.aspx I get the error: A reply message was received for operation 'Get' with action 'http://schemas.xmlsoap.org/ws/2004/09/transfer/Get'. However, your client code requires action 'http://schemas.xmlsoap.org/ws/2004/09/transfer/GetResponse'. The OSB services are set to use Soap 1.2 and the svcutil.exe.config we use is identicle to the article except for the findValue and x509FindType. Instead we used the FindByThumbprint pointing to the "My" store name and "CurrentUser" store location. The cert is there and is the same cert we select from the IE prompt.

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• Java servlet and UTF-8 problem

  - by Gabriele

  I have some problem with UTF-8. My client (realized in GWT) make a request to my servlet, with some parametres in the URL, as follow: http://localhost:8080/servlet?param=value When in the servlet I retrieve the URL, I have some problem with UTF-8 characters. I use this code: protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); String reqUrl = request.getRequestURL().toString(); String queryString = request.getQueryString(); System.out.println("Request: "+reqUrl + "?" + queryString); ... So, if I call this url: http://localhost:8080/servlet?param=così the result is like this: Request: http://localhost:8080/servlet?param=cos%C3%AC What can I do to set up properly the character encoding?

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• Double-byte characters in querystring using PHP

  - by Jeffrey Berthiaume

  I'm trying to figure out how to create personalized urls for double-byte languages. For example, this url from Amazon Japan has Japanese characters within the querystring (specifically, the path): http://www.amazon.co.jp/????????-DVD-???/dp/B00005R5J3/ref=sr_1_3?ie=UTF8&s=dvd&qid=1269891925&sr=8-3 What I would like to do is have: http://www.mysite.com/???????? or even http://www.mysite.com/index.php?name=???????? be able to properly decode the $GET[name] string. I think I have tried all of the urldecode and utf8_decode possibilities, but I just get gibberish in response. This all works fine in a form $_POST, but I need these urls to be emailable...

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• How to make proxy on nginx?

  - by Adrian K.

  How would I set my webservers to work in way described below? Http request: mypublic.com --- handled normally by nginx as it is set up already (listen 80;) Http request: myprivate.com --- handled by apache set up to work on 8080 (listen 8080) I'd like to avoid including ports when typing address in browser, some kind of mockup (proxy?). Both of domains are pointing to my machine and set up by named.

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• Running Safari from the command line adds current directory to the URL

  - by Charles Anderson

  I am trying to run the Safari browser (on Mac OS 10.4) from the command line, as follows: /Applications/Safari.app/Contents/MacOS/Safari http://localhost/dev/myfile.html However, Safari starts up and tries to access file:///Users/charlesanderson/scripts/http://localhost/dev/myfile.html /Users/charlesanderson/scripts happens to be my current directory. Can someone explain why Safari does this? Firefox is much better behaved?

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• Azure, SLAs and CAP theorem

  - by dayscott

  Azure itself is imo PaaS and not IaaS. Do you agree? MS gurantees an availability of 99% and a strong consistency. You can find MS SLAs here: http://www.microsoft.com/windowsazure/sla (three SLAs Uptime: http://img229.imageshack.us/img229/4889/unbenanntqt.png ) I can't find anyhing about how they are going to archive that. Do they do backups? If Yes: How do they manage consistency? According to the Cap theorem (http://camelcase.blogspot.com/2007/08/cap-theorem.html ) their claims are not realistic. 2.1 Do you know detailed technical stuff about the how they are going to realize the claims about consistency and availability? On the MS page you'll find three SLAs .docs, one for SQL Azure, the second for Azure AppFabric/.Net Services and the third for Azure Compute&Storage.(Screenshot in 1.) How can one track whether SLAs are violated? Do they offer some sort of monitor, so I don't have to measure the uptime by myself?

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• What is causing a Hibernate SQL query exception?

  - by Dark Star1

  Hi all and sorry in advance for this post but I've spent way too much time going around in circles so I'm hoping someone could shed a light on it here for me. I updated a webapp on Tomcat and I'm getting the following error which didn't exist on the previous version. Though I am quite confident that the part of code I modifed isn't to blame as I have tested the app on two different dev servers. The production server is configured thus: CentOS 5.4 virtual server with tomcat 5.5.23 running mysql 5.0.77. The two dev servers are: Windows XP SP2 running tomcat 5.5.23 with mysql 5.1.49 Mac OSX 10.6.6 Running tomcat 6 with mysql 5.1.51 The application was developed using struts (1.1 as far as I can gather) with hibernate 3 as the peristence layer. It only fails on the production server for some reason I can't fathom. I'd like to draw your attention to the java.sql.SQLException near the bottom. After some long searching I found this but because it was posted years ago (about 1 year before development started on this app I'm sure Hibernate has evolved from that version. as I can't find a way of implementing his solution. I use Eclipse Helios as an IDE. Thanks in advance for taking your time to read this, to all who manage to reply. javax.servlet.ServletException: org.hibernate.exception.SQLGrammarException: could not execute query at fr.company.action.login.LoginAction.execute(LoginAction.java:219) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at fr.company.util.EncodingFilter.doFilter(EncodingFilter.java:37) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:113) at java.lang.Thread.run(Thread.java:636) javax.servlet.ServletException: org.hibernate.exception.SQLGrammarException: could not execute query at fr.company.action.login.LoginAction.execute(LoginAction.java:219) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at fr.company.util.EncodingFilter.doFilter(EncodingFilter.java:37) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:113) at java.lang.Thread.run(Thread.java:636) java.lang.Exception: org.hibernate.exception.SQLGrammarException: could not execute query at fr.company.dao.GenericDAO.findOne(GenericDAO.java:204) at fr.company.dao.UserDAO.findOneUser(UserDAO.java:146) at fr.company.service.UserPeer.logUser(UserPeer.java:72) at fr.company.action.login.LoginAction.execute(LoginAction.java:127) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at fr.company.util.EncodingFilter.doFilter(EncodingFilter.java:37) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:113) at java.lang.Thread.run(Thread.java:636) Caused by: org.hibernate.exception.SQLGrammarException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:65) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.doList(Loader.java:2153) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029) at org.hibernate.loader.Loader.list(Loader.java:2024) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:300) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1128) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749) at fr.company.dao.GenericDAO.findOne(GenericDAO.java:198) ... 26 more Caused by: java.sql.SQLException: Unknown column 'user0_1_.poloSize' in 'field list' at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2928) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666) at com.mysql.jdbc.Connection.execSQL(Connection.java:2994) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:936) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1030) at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76) at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139) at org.hibernate.loader.Loader.getResultSet(Loader.java:1669) at org.hibernate.loader.Loader.doQuery(Loader.java:662) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) at org.hibernate.loader.Loader.doList(Loader.java:2150) ... 35 more

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• Installing sSMTP from SSH

  - by James

  I'm on a Web Hosting Buzz reseller account. They have some very stringent mail sending rules, including blocking of authenticated SMTP socket mail sending using PEAR. It was suggested in WHB forum that this was possible with sSMTP. I've since gotten SSH access and googled how to install sSMTP from SSH: rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm yum install ssmtp However, the first line fails with: Retrieving http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm error: skipping http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm - transfer failed - Unknown or unexpected error It was a very old thread in WHB forum and the thread poster could not be reached for assistance. Any help would be much appreciated!

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• UTF-8 formatting in SPARQL

  - by john

  How can I "say" to SPARQL that ?churchname is in UTF-8 formatting? because response is like:Pražský hrad PREFIX lgv: <http://linkedgeodata.org/vocabulary#> PREFIX abc: <http://dbpedia.org/class/yago/> SELECT ?churchname WHERE { <http://dbpedia.org/resource/Prague> geo:geometry ?gm . ?church a lgv:castle . ?church geo:geometry ?churchgeo . ?church lgv:name ?churchname . FILTER ( bif:st_intersects (?churchgeo,?gm, 10)) } GROUP BY ?churchname ORDER BY ?churchname

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• Using mod_rewrite for a RESTful api

  - by razass

  Say the user is making a request to the following url: "http://api.example.com/houses/123/abc" That request needs to map to "/webroot/controls/houses.php" and send "123" and "abc" to houses.php as variables without modifying the http headers or body. "houses" could theoretically be anything; cars, boats; and map to the corresponding php file... cars.php, boats.php respectively with a fallback to index.php if there is no match. There can be any number of variables after "houses" ie) "http://api.example.com/houses/1234/abc/zxy/987" I think I already have ALL requests being sent to webroot using: <IfModule mod_reqrite.c> RewriteEngine on RewriteRule ^$ webroot/ [L] RewriteRule (.*) webroot/$1 [L] </IfModule> But now I am at a loss as to how to take the next step as mentioned above. Any help is appreciated, even if you feel that I am taking the wrong approach. Thanks in advance!

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• Blowery HttpCompress with ASP.NET MVC

  - by Iceman

  I'm using the httpcompression module from blowery. It works great with asp.net mvc except on the root url, www.samplesite.com/. On all others it's great, www.samplesite.com/Countries for example. Is anyone here using this module or any other compression module with asp.net mvc ?

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• Connecting to a WCF Service in PHP that has a a NetTCP Binding and a BasicHttpBinding

  - by Justin Dearing

  I have a WCF service. It has multiple clients and three endpoints. The endpoint bindings are nettcp, wsHttp and basicHttp. If I attempt to connect to it via php'd builtin SoapClient class like so: $service = new SoapClient ("http://service.companyname.local:6666/Service/?wsdl", array( "location" => "http://service.companyname.local:6666/Service/Basic", "trace" => true, 'soap_version' => SOAP_1_1 ) ); I get the following: PHP Fatal error: SOAP-ERROR: Parsing WSDL: PHP-SOAP doesn't support transport 'http://schemas.microsoft.com/soap/tcp' in c:\www\client.php on line 666 Right now my workaround is to save the wsdl manually and remove the nettcp binding. Is there a workaround that will allow me to use the automatically generated wsdl? Can I hide a binding from the wsdl in web.config? Can I generate different wsdls on different bindings. I don't want to deploy two service hosts.

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• With Apache, is it possible to generate a directory listing for a non-folder URL?

  - by William Denniss

  Apache allows you to create a directory list (when configured) if you visit a folder with no index.html. What I want to know is, is it possible to get that same list but at a different URL? I'm already using index.html and want to keep it that way. i.e., this is what I'm looking for: http://example.com/blar/ - loads my index.html page (don't want this to change) http://example.com/blar/directory_list (I want this url to render the apache directory list instead)

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• What are unusual and creative usages of html5 canvas

  - by stej

  Canvas from html5 was introduced some time ago. Currently it's used (almost) only for demonstrations how cool it is - it's mainly related to painting, games and charts. Many of them can be found at Canvas demos. How creatively / unusually can canvas be used? Some examples: jsAscii - ASCII art from images with Javascript and Canvas (yea, I know, it's painting but not the classic one) Javascript compression using PNG and Canvas

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• Redirect 404 errors without rewriting the URL

  - by Knocks X

  Is it possible to have an erroneous URL remain in the address bar while redirecting the user to a URL within my domain? I want www.domain.com/forum to be the actual site being served in all 404 circumstances but I don't want the referring URL to be rewritten (other than the domain portion, which is being done on the registrar level). This is my current .htaccess RewriteEngine On RedirectMatch permanent ^/$ http://www.domain.com/forum/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* http://www.domain.com/forum/ [L,R]

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• Deeplinking using GWT History Token within a Facebook iFrame Canvas

  - by Stevko

  I would like to deep link directly to a GWT app page within a Facebook iFrame Canvas. The first part is simple using GWT's History token with URLs like: http://www.example.com/MyApp/#page1 which would open page1 within my app. Facebook Apps use an application url like: http://apps.facebook.com/myAppName which frames my Canvas Callback URL http://www.example.com/MyApp/ Is there a way to specify a canvas callback url (or bookmark url) which will take the user to a specific page rather than the index page? Why? you may ask. Besides all the benefits of deep links... I want the "Go To Application" url to take users to an index page w/ marketing material (the canvas callback url) I want the "Bookmark URL" to take (likely returning) users to a login page and bypass downloading the marketing content (and that huge SWF file).

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• Running Perl on Windows 7 error

  - by Eyla

  Greeting, I'm trying to run smaple perl script on windows 7 and I configured IIS 7 to allow activeperl to run but I'm getting this error: HTTP Error 502.2 - Bad Gateway The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are "Hello World. ". Module CgiModule Notification ExecuteRequestHandler Handler Perl Script (PL) Error Code 0x00000000 Requested URL http://localhost:80/hello.pl Physical Path C:\inetpub\wwwroot\hello.pl Logon Method Anonymous Logon User Anonymous and here is my perl script : #!/usr/bin/perl print "Hello World.\n"; please any advice to handle this case!!!

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• IIS URL Rewriting for all Inbound URLs?

  - by Rob Burke

  Hopefully a simple question although one I have found impossible to answer myself using the Googles! I have a website on IIS with the URL http://www.contoso.com/ which points to C:\www\public\ There has been a forced directory restructure so now all of the data (Default.aspx, Product.aspx, etc.) that originally resided in C:\www\public\ now resides in C:\www\public\en\ie\ - however, the IIS website document root is still C:\www\public\ So, essentially, I have a lot of inbound links to http://www.contoso.com/Product.aspx?id=1 (etc.) which are now returning 404 errors - the correct link is now http://www.contoso.com/en/ie/Product.aspx?id=1 Please consider that I can make no changes to the directory structure or the IIS document root... so must solve this issue using URL rewriting. Is it possible to capture all requests to contoso.com/* and rewrite them to contoso.com/en/ie/* ??

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• Cygwin vim doesnt show 256 colors under ConEMu

  - by Tulhan

  When using cygwin vim under ConEmu, the default vim theme doesnt display correctly after I set t_Co=256. This is how ConEmu looks after the command: http://postimg.org/image/g6g98exbx/ My .vimrc: set nocompatible execute pathogen#infect() filetype plugin on syntax on set term=xterm set t_Co=256 let &t_AB="\e[48;5;%dm" let &t_AF="\e[38;5;%dm" colorscheme solarized My vim --version: http://pastebin.com/1NFaA8YK I am using ConEmu v131017. Thanks for your help.

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• Allow only certain files to be exposed to the web on Lighttpd?

  - by darkAsPitch

  Just installed it on my linux desktop, and I only want 1 or 2 files accessible to the outside world. Everything else should only be accessibly via http://localhost/ for various privacy/security reasons. It is just a test server, don't want just anybody accessing my large batch files. How would you go about allowing only certain select files access to the internet and making everything else available only via http://localhost/?

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• Opencart Installation and Display Errors

  - by jpoles1

  Hello, I need a bit of help installing a copy of Opencart onto my Godaddy hosting. I have had one major problem and that was, after during and after the install, none of the styles or images where appearing. I was able to completely fix the admin panel, but I am now running into problems with the frontend. I was able to fix the styles by editing a couple lines in the index.php file: define('HTTP_SERVER', 'http://' . $_SERVER['HTTP_HOST'] .'/opencart/'); define('HTTP_IMAGE', 'http://jpoles1.com/image/'); Now the problem is that unless you are on the base url http://jpoles1.com/opencart/, none of the database functionality works. For example the brands dropdown on the left will only be populated on the root page. Am I going about this problem the wrong way? What should I do to fix this problem? -- Thanks, Jordan

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• Free Large datasets to experiment with Hadoop

  - by Sundar

  Do you know any large datasets to experiment with Hadoop which is free/low cost? Any pointers/links related is appreciated. Prefernce: Atleast one GB of data. Production log data of webserver. Few of them which I found so far: http://dumps.wikimedia.org/enwiki/20100130/ http://wiki.freebase.com/wiki/Data_dumps http://aws.amazon.com/publicdatasets/ Also can we run our own crawler to gather data from sites e.g. Wikipedia? Any pointers on how to do this is appreciated as well.

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