Proxy Authentication Error C#
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C# Httpclient Proxy Authentication Required
Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Proxy Basic Authentication in C#: HTTP 407 error up vote 28 down vote favorite 15 I am working with a proxy that requires authentication, i.e., in the remote server returned an error (407) proxy authentication required. c# web client a browser if I try to open a page it will immediately ask for credentials. I supplied same credentials in my program but it fails with HTTP 407 error. Here is my code: HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL); IWebProxy proxy = WebRequest.GetSystemWebProxy(); CredentialCache cc = new CredentialCache(); NetworkCredential nc = new NetworkCredential(); nc.UserName = "userName"; nc.Password = "password"; nc.Domain = "mydomain"; cc.Add("http://20.154.23.100", 8888, "Basic", nc); proxy.Credentials = cc; //proxy.Credentials = System.Net.CredentialCache.DefaultCredentials; request.Proxy = proxy; request.Proxy.Credentials = cc; request.Credentials = cc; request.PreAuthenticate = true; I have tried every possible thing but seem like I am missing something. Is it something like, I have to make two requests? First with out credentials and once I hear back from server about need for credentials, make same request with credentials? c# proxy httpwebrequest basic-authentication http-status-code-407 share|improve this question edited Oct 26 '15 at 8:26 Nicolas Raoul 25k34122224 asked Mar 7 '12 at 14:16 rplusg
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The Remote Server Returned An Error (407) Proxy Authentication Required Visual Studio
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Webclient Proxy Authentication Required
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community http://stackoverflow.com/questions/9603093/proxy-basic-authentication-in-c-http-407-error Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up error (407) “Proxy Authentication Required.” up vote 3 down vote favorite 3 I have a requirement like...i want to access an url (login page which is web) http://stackoverflow.com/questions/14395677/error-407-proxy-authentication-required from a winforms. i have to pass the credentials to that url and the response should be the contect of the authenticated web page(markup). I have written a function which will request the url and return the response. but i am getting error code (407) "Proxy Authentication Required." Here is my code. private static void GetPageContent(){ string url = "https://LoginPage.aspx/"; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "GET"; // If required by the server, set the credentials. //request.Proxy.Credentials = CredentialCache.DefaultCredentials; request.Credentials = new NetworkCredential("user1", "testuser#"); // Get the response. HttpWebResponse response = (HttpWebResponse)request.GetResponse(); // Display the status. Console.WriteLine(response.StatusDescription); // Get the stream containing content returned by the server. Stream dataStream = response.GetResponseStream(); // Open the stream using a StreamReader for easy access. StreamReader reader = new StreamReader(dataStream); // Read the content. string responseFromServer = reader.ReadToEnd(); // Display the content. Console.WriteLine(responseFromServer); // Cleanup the streams and the response. reader.Close(); dataStream.Close(); response.Close(); } c#
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta http://stackoverflow.com/questions/13008964/webproxy-error-proxy-authentication-required Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack https://social.msdn.microsoft.com/Forums/vstudio/en-US/c06d3032-dceb-4a1a-bb6a-778fd13a938a/407-proxy-authentication-required?forum=csharpgeneral Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, proxy authentication helping each other. Join them; it only takes a minute: Sign up WebProxy error: Proxy Authentication Required up vote 8 down vote favorite 3 I use the following code to obtaing html data from the internet: WebProxy p = new WebProxy("localproxyIP:8080", true); p.Credentials = new NetworkCredential("domain\\user", "password"); WebRequest.DefaultWebProxy = p; WebClient client = new WebClient(); string downloadString proxy authentication required = client.DownloadString("http://www.google.com"); But the following error is appeared: "Proxy Authentication Required". I can't use default proxy because of my code runs from windows service under the special account which there is no default proxy settings for. So, I want to specidy all proxy settings in my code. Please advice me how to resolve this error. c# .net webclient networkcredentials webproxy share|improve this question asked Oct 22 '12 at 9:58 Oleg Ignatov 4811414 1 try to remove the domain\\ part (also remember of wrapping WebClient with using() statement because it implements IDisposable) –jwaliszko Oct 22 '12 at 10:15 add a comment| 3 Answers 3 active oldest votes up vote 17 down vote accepted You've to set the WebClient.Proxy Property.. WebProxy p = new WebProxy("localproxyIP:8080", true); p.Credentials = new NetworkCredential("domain\\user", "password"); WebRequest.DefaultWebProxy = p; WebClient client = new WebClient(); **client.Proxy = p;** string downloadString = client.DownloadString("http://www.google.com"); share|improve this answer answered Oct 22 '12 at 10:08 2GDev 2,2121924 it's not needed because WebRequest.DefaultWebProxy = p is enough –jwaliszko Oct 22
.NET Framework > Visual C# Question 0 Sign in to vote Hi, I am trying to write a winform application that needs to access internet with or without proxy. the code is: string rssURL = "http://msdn.microsoft.com/rss.xml";
// Begin the WebRequest to the desired RSS Feed System.Net.WebRequest myRequest = System.Net.WebRequest.Create(rssURL); System.Net.WebResponse myResponse = myRequest.GetResponse(); Resuts: 1. without proxy like home, the above works well. 2. with proxy like company, the above return error at the last line. i searched the issue online, a lot people talked about this, but i can not find a working solution yet. Any help is appreciated. -Dale Monday, March 27, 2006 6:50 PM Reply | Quote Answers 0 Sign in to vote Hi Dale, You're going to have to provide the credentials necessary to get through the proxy.I.E.string rssURL = "http://msdn.microsoft.com/rss.xml"; System.Net.WebProxy rssProxy = new System.Net.WebProxy("ISA_SERVER", PORT_NUMBER);rssProxy.Credentials = new System.Net.NetworkCredential("myusername", "mypassword", "mydomain"); // bypass the proxy on local networkrssProxy.BypassProxyOnLocal = true;System.Net.GlobalProxySelection.Select = rssProxy;System.Net.WebRequest myRequest = System.Net.WebRequest.Create(rssURL);// assign the proxy to the requestmyRequest.Proxy = rssProxy;System.Net.WebResponse myResponse = myRequest.GetResponse(); Look at the Network Credential class.http://msdn.microsoft.com/library/en-us/cpref/html/frlrfsystemnetnetworkcredentialclasstopic.asp?frame=true and the webProxy class http://msdn.microsoft.com/library/en-us/cpref/html/frlrfSystemNetWebProxyClassTopic.asp?frame=true Monday, March 27, 2006 7:31 PM Reply | Quote 0 Sign in to vote You can specify a proxy for you request with setting the Proxy property. Here is an example:System.Net.WebRequest myRequest = System.Net.WebRequest.Create( rssURL );System.Net.WebProxy proxy = new System.Net.WebProxy();proxy.Address = new Uri( "http://10.0.0.1" );proxy.Credentials = new System.Net.NetworkCredential( "myusername", "mypassword" ); Monday, March 27, 2006 7:35 PM Reply | Quote Moderator 0 Sign in to vote try this: rssProxy.Credentials = (System.Net.NetworkCredential)System.Net.CredentialCache.DefaultCredentials; Monday, March 27, 2006 8:17 PM Reply | Quote All replies 0 Sign in to vote Hi Dale, You're going to have to provide the credentials necessary to get