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  • How can I compose a WCF contract out of multiple interfaces?

    - by mafutrct
    I've got multiple interfaces. All of them should be inherited and exposed by a single contract interface. interface A { void X(); } interface B { void Y(); } interface C: A, B {} // this is the public contract How is this possible? I can't add ServiceContract to A and B because that would lead to multiple endpoints. And I don't want to new-override every method in C.

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  • How can a client try to reconnect to a server after a first failed try with WCF?

    - by djerry
    Hey guys, I'm using a client - server app. When a client starts, he gets a login-screen. When the server is not up yet, the call to the server will throw an exception which i catch (EndpointNotFoundException). I show a messagebox telling the user the server is offline. When he tries to reconnect again, it will throw another exception (CommunicationObjectFaultedException), even though the server is online. When a new client starts then, he can connect to the server. But the client who attempted before, still gets the error. My question now is how can the first client login after a failed first try without having to start his program again. So i want to clear the communicationchannel of its faulted state or something like that. Thanks in advance.

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  • What is a 'better' approach to query/save from server: DTO or Wcf Data Services?

    - by bonefisher
    From my perspective, the Data Services and their query approach is useful when querying simple object graphs from your server-side domain model. But when you want to query complex dependencies I couldn't create anything good out of it. The classic DTO approach is fine-grained and can handle everything, but the downside is that you have to create Dto classes for every type of server-request which is time consuming and you have to synchronize the Dto type with your domain entity/business logic.

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  • How can I push a string from one client connected to a WCF service to another connected as well?

    - by Sergio Tapia
    Here's what I have so far: IService: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ServiceModel; namespace ServiceLibrary { [ServiceContract(SessionMode = SessionMode.Allowed, CallbackContract = typeof(IServiceCallback))] public interface IService { [OperationContract(IsOneWay = false, IsInitiating = true, IsTerminating = false)] void Join(string userName); } interface IServiceCallback { [OperationContract(IsOneWay = true)] void UserJoined(string senderName); } } Service: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ServiceModel; namespace ServiceLibrary { [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession, ConcurrencyMode = ConcurrencyMode.Multiple)] public class Service:IService { IServiceCallback callback = null; public void Join(string userName) { callback = OperationContext.Current.GetCallbackChannel<IServiceCallback>(); } } } Just a simple string passed from one client to another.

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  • How do I construct a request for a WCF http post call?

    - by James Hay
    I have a really simple service that I'm messing about with defined by: [OperationContract] [WebInvoke(UriTemplate = "Review/{val}", RequestFormat = WebMessageFormat.Xml, Method = "POST", BodyStyle=WebMessageBodyStyle.Bare)] void SubmitReview(string val, UserReview review); UserReview is, at the moment, a class with no properties. All very basic. When I try and test this in Fiddler I get a bad request status (400) message. I'm trying to call the service using the details: POST http://127.0.0.1:85/Service.svc/Review/hello Headers User-Agent: Fiddler Content-Type: application/xml Host: 127.0.0.1:85 Content-Length: 25 Body <UserReview></UserReview> I would think i'm missing something fairly obvious. Any pointers?

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  • Best way to version control a WCF application with Git?

    - by Sam
    Suppose I have the following projects. The format is [ProjectName] : [ProjectDependency1, ProjectDependency2, etc.] // Service CoolLibrary WcfApp.Core WcfApp.Contracts WcfApp.Services : CoolLibrary, WcfApp.Core, WcfApp.Contracts // Clients CustomerX.App : WcfApp.Contracts CustomerY.App : WcfApp.Contracts CustomerZ.App : WcfApp.Contracts (On a side note, WcfApp.Contracts should not depend on WcfApp.Core, right? Else CustomerX.App would also depend on and thus be exposed to the service domain model?) (CoolLibrary is shared with other applications, so I can't just put it inside of WcfApp.Services.) All of this code is in-house. I was thinking of having 6 repositories for this. The format is [repository folder name] : [Projects included in repository.] 1. CoolLibrary.git : CoolLibrary 2. WcfApp.Contracts.git : WcfApp.Contracts 3. WcfApp.git : WcfApp.Core, WcfApp.Services 4. CustomerX.App.git : CustomerX.App 5. CustomerY.App.git : CustomerY.App 6. CustomerZ.App.git : CustomerZ.App How should I manage my project dependencies? I see three options: I could use binaries which I have to manually copy to each dependent repository. This would be easiest at the start, but my repositories would be a little bloated, and it'd become more tedious as I add more client apps for customers. I could import dependent code as submodules. This is what I will probably end up doing, although I keep reading on the web that submodules are a hassle. I also read that I can use something called the subtree merge strategy, but I am not sure how it is different from just cloning the repo into a subdirectory and adding the subdirectory to .gitignore. Is the difference that the subtree is recorded in the master repository, so (for example) cloning it from a different location will also pull the subtree? I know I asked a lot of questions in this post, but the most important two questions I have are: 1. Am I using the right number and layout of repositories? Should I use less or more? 2. Which of the three dependency management strategies would you recommend? Is there another strategy I haven't considered?

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  • How to set the MaxReceivedMessageSize programatically when using a WCF Client?

    - by Pratt
    I want to set the MaxReceivedMessageSize property to some higher limit (Due to (400) Bad Request error) in my client programatically. This is the code I am using... WCFServiceTestClient wcfClient = new WCFServiceTestClient(new wsHttpBinding(), strServiceURL); My service url is dynamic and hence cannot use the web.config. //The following code doesnt seem to take effect ((WSHttpBinding)wcfClient.ChannelFactory.Endpoint.Binding) .MaxReceivedMessageSize = 2147483647; What am I doing wrong? Any help is appreciated. Thanks Pratt

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  • How to Transfer Large File from MS Word Add-In (VBA) to Web Server?

    - by Ian Robinson
    Overview I have a Microsoft Word Add-In, written in VBA (Visual Basic for Applications), that compresses a document and all of it's related contents (embedded media) into a zip archive. After creating the zip archive it then turns the file into a byte array and posts it to an ASMX web service. This mostly works. Issues The main issue I have is transferring large files to the web site. I can successfully upload a file that is around 40MB, but not one that is 140MB (timeout/general failure). A secondary issue is that building the byte array in the VBScript Word Add-In can fail by running out of memory on the client machine if the zip archive is too large. Potential Solutions I am considering the following options and am looking for feedback on either option or any other suggestions. Option One Opening a file stream on the client (MS Word VBA) and reading one "chunk" at a time and transmitting to ASMX web service which assembles the "chunks" into a file on the server. This has the benefit of not adding any additional dependencies or components to the application, I would only be modifying existing functionality. (Fewer dependencies is better as this solution should work in a variety of server environments and be relatively easy to set up.) Question: Are there examples of doing this or any recommended techniques (either on the client in VBA or in the web service in C#/VB.NET)? Option Two I understand WCF may provide a solution to the issue of transferring large files by "chunking" or streaming data. However, I am not very familiar with WCF, and am not sure what exactly it is capable of or if I can communicate with a WCF service from VBA. This has the downside of adding another dependency (.NET 3.0). But if using WCF is definitely a better solution I may not mind taking that dependency. Questions: Does WCF reliably support large file transfers of this nature? If so, what does this involve? Any resources or examples? Are you able to call a WCF service from VBA? Any examples?

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  • WCF. Robust big file transfer.

    - by Sharov
    Hello everybody! I want to transfer big files (1GB) over unreliable transport channels. When connection is interrupted, I don't want start file transfering from the begining. I can partially store it in a temp table and store last readed position, so when connection is reestablished I can request continue uploading of file from this position. Is there any best-practice for such kind of things. I'm currently use chunking channel. Thanks in advance.

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  • WCF dependency on HTTP Filter - what to do with Win 2008 server?

    - by Saar
    We had the same problem described here. we implemented the same solution of having a dependency on HTTPFilter. We recently tried to install on Windows 2008 - it appears the HTTPFilter service is not available there, so our service will not start. What should we do on Windows 2008? Do we need to add a dependency on another service? Which? Thanks Saar

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  • How to use SSL with a WCF web service?

    - by Martin
    I have a web service in asp.net running and everything works fine. Now I need to access some methods in that web-service using SSL. It works perfect when I contact the web-service using http:// but with https:// I get "There was no endpoint listening at https://...". Can you please help me on how to set up my web.config to support both http and https access to my web service. I have tried to follow guidelines but I can't get it working. Some code: My TestService.svc: [ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class TestService { [OperationContract] [WebGet(ResponseFormat = WebMessageFormat.Json)] public bool validUser(string email) { return true; } } My Web.config: <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <behaviors> <endpointBehaviors> <behavior name="ServiceAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior name="ServiceBehavior"> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> <behavior name=""> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <services> <service behaviorConfiguration="ServiceBehavior" name="TestService"> <endpoint address="" behaviorConfiguration="ServiceAspNetAjaxBehavior" binding="webHttpBinding" bindingConfiguration="ServiceBinding" contract="TestService" /> </service> </services> <bindings> <webHttpBinding> <binding name="ServiceBinding" maxBufferPoolSize="1000000" maxReceivedMessageSize="1000000"> <readerQuotas maxDepth="1000000" maxStringContentLength="1000000" maxArrayLength="1000000" maxBytesPerRead="1000000" maxNameTableCharCount="1000000"/> </binding> </webHttpBinding> </bindings> </system.serviceModel>

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  • How can I avoid huge communication classes in WCF?

    - by mafutrct
    My understanding is that all contract-implementing code has to be in a single class, that can become very large, obviously. How do I avoid this? I really prefer to have a few small classes doing one part of the communication with clients than a single behemoth class. The only idea I could think of is using multiple interfaces implemented by a single class split up by partial, but I don't this this is really solving the issue.

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  • System.Threading.ThreadAbortException executing WCF service

    - by SURESH GIRIRAJAN
    In one of our prod server we recently ran into issue when we went and update the web.config and try to browse the service. We started seeing the service was not responding and getting the following warning in the application log. Our service is WCF service, BizTalk orchestration exposed as service. We have other prod server where we never ran into this issue, so what’s different with this server. After going thru lot of forum and came up on some Microsoft service pack and hot fix which related to FCN. But I don’t want to apply any patch on this server then we need to do on all the other servers too. So solution is simple, I dropped the existing website, created a new site with different name with updated web.config browse the service. Then dropped that site and recreate the original web site and it worked fine without any issue. Event Viewer:  Event Type:        Warning Event Source:    ASP.NET 2.0.50727.0 Event Category:                Web Event Event ID:              1309 Date:                     6/6/2011 Time:                    5:41:42 PM User:                     N/A Computer:          PRODP02 Description: Event code: 3005 Event message: An unhandled exception has occurred. Event time: 6/6/2011 5:41:42 PM Event time (UTC): 6/6/2011 9:41:42 PM Event ID: a71769f42b304355a58c482bfec267f2 Event sequence: 3 Event occurrence: 1 Event detail code: 0  Application information:     Application domain: /LM/W3SVC/518296899/ROOT/PortArrivals-2-129518698821558995     Trust level: Full     Application Virtual Path: /TESTSVC     Application Path: D:\inetpub\wwwroot\RFID\TESTSVC\     Machine name: PRODP02  Process information:     Process ID: 8752     Process name: w3wp.exe     Account name: domain\BizTalk_Svc_Hostlso  Exception information:     Exception type: ThreadAbortException     Exception message: Thread was being aborted.  Request information:     Request URL: http://localhost:81/TESTSVC/TESTSVCS.svc     Request path: /TESTSVC/TESTSVCS.svc     User host address: 127.0.0.1     User:      Is authenticated: False     Authentication Type:      Thread account name: domain\BizTalk_Svc_Hostlso  Thread information:     Thread ID: 22     Thread account name: domain\BizTalk_Svc_Hostlso     Is impersonating: False     Stack trace:    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)    at System.Web.HttpApplication.ApplicationStepManager.ResumeSteps(Exception error)  at System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)    at System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr)  <Description>Handling an exception.</Description> <AppDomain>/LM/W3SVC/518296899/ROOT/TESTSVC-6-129518741899334691</AppDomain> <Exception> <ExceptionType>System.Threading.ThreadAbortException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType> <Message>Thread was being aborted.</Message> <StackTrace> at System.Threading.Monitor.Enter(Object obj) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath) at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest() at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest() at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state) at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks() at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state) at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) </StackTrace> <ExceptionString>System.Threading.ThreadAbortException: Thread was being aborted.    at System.Threading.Monitor.Enter(Object obj)    at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)    at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath)    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest()    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()    at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks()    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state)    at System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)    at System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)</ExceptionString>

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  • nginx proxypass content 404s when adding caching location block

    - by Thermionix
    Below is my nginx conf - the location block for adding expires max to content is causing issues with content from the /internal proxied sites. nginx error log; 2011/11/22 15:51:23 [error] 22124#0: *2 open() "/var/www/internal/static/javascripts/lib.js" failed (2: No such file or directory), client: 127.0.0.1, server: example.com, request: "GET /internal/static/javascripts/lib.js?0.6.11RC1 HTTP/1.1", host: "example.com", referrer: "https://example.com/internal/" browser error; lib.js Failed to load resource: the server responded with a status of 404 (Not Found) commenting out the expires max location block allows the proxied sites to work as intended. Config files; proxy.conf location /internal { proxy_pass http://localhost:10001/internal/; include proxy.inc; } .... more entries .... sites-enabled/main server { listen 80; include www.conf; } server { listen 443; include proxy.conf; include www.conf; ssl on; } www.conf root /var/www; server_name example.com; location / { autoindex off; allow all; rewrite ^/$ /mainsite last; } location ~* \.(jpg|jpeg|gif|css|png|js|ico)$ { expires max; } # hide protected files location ~* \.(engine|inc|info|install|module|profile|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)$|^(code-style\.pl|Entries.*|Repository|Root|Tag|Template)$ { deny all; } location ~ \.php$ { fastcgi_index index.php; include fastcgi_params; if (-f $request_filename) { fastcgi_pass 127.0.0.1:9000; } } proxy.inc proxy_connect_timeout 59s; proxy_send_timeout 600; proxy_read_timeout 600; proxy_buffer_size 64k; proxy_buffers 16 32k; proxy_pass_header Set-Cookie; proxy_redirect off; proxy_hide_header Vary; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; proxy_set_header Accept-Encoding ''; proxy_ignore_headers Cache-Control Expires; proxy_set_header Referer $http_referer; proxy_set_header Host $host; proxy_set_header Cookie $http_cookie; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

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  • tproxy squid bridge very slow when cache is full

    - by Roberto
    I have installed a bridge tproxy proxy in a fast server with 8GB ram. The traffic is around 60Mb/s. When I start for first time the proxy (with the cache empty) the proxy works very well but when the cache becomes full (few hours later) the bridge goes very slow, the traffic goes below 10Mb/s and the proxy server becomes unusable. Any hints of what may be happening? I'm using: linux-2.6.30.10 iptables-1.4.3.2 squid-3.1.1 compiled with these options: ./configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --localstatedir=/var/lib --sysconfdir=/etc/squid --libexecdir=/usr/libexec/squid --localstatedir=/var --datadir=/usr/share/squid --enable-removal-policies=lru,heap --enable-icmp --disable-ident-lookups --enable-cache-digests --enable-delay-pools --enable-arp-acl --with-pthreads --with-large-files --enable-htcp --enable-carp --enable-follow-x-forwarded-for --enable-snmp --enable-ssl --enable-async-io=32 --enable-linux-netfilter --enable-epoll --disable-poll --with-maxfd=16384 --enable-err-languages=Spanish --enable-default-err-language=Spanish My squid.conf: cache_mem 100 MB memory_pools off acl manager proto cache_object acl localhost src 127.0.0.1/32 acl localhost src ::1/128 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 acl to_localhost dst ::1/128 acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl net-g1 src xxx.xxx.xxx.xxx/24 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow net-g1 from where browsing should be allowed http_access allow localnet http_access allow localhost http_access deny all http_port 3128 http_port 3129 tproxy hierarchy_stoplist cgi-bin ? cache_dir ufs /var/spool/squid 8000 16 256 access_log none cache_log /var/log/squid/cache.log coredump_dir /var/spool/squid refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . I have this issue when the cache is full, but do not really know if it is because of that. Thanks in advance and sorry my english. roberto

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  • Having trouble Getting "RTSP over HTTP"

    - by Muhammad Adeel Zahid
    There is an axis camera that is connected to our site (camba.tv) through axis one click connection component (which acts as proxy). We can communicate with this camera only through http by setting the proxy to our OCCC server's address. If we want to get RTSP streams (h.264) we are only left with "RTSP over HTTP" option. For this I have followed axis VAPIX 3 documentation section 3.3. I issue requests through fiddler but don't get any response. But when i put the URL (axrtsphttp://1.00408CBEA38B/axis-media/media.amp) in windows media player (with proxy set to OCCC server 212.78.237.156:3128) the player is able to get RTSP stream over HTTP after logging in. I have created a request trace of communication between camera and windows media player through wireshark and the request that brings the stream looks like http://1.00408cbea38b/axis-media/media.amp HTTP/1.1 x-sessioncookie: 619 User-Agent: Axis AMC Host: 1.00408CBEA38B Proxy-Connection: Keep-Alive Pragma: no-cache Authorization: Digest username="root",realm="AXIS_00408CBEA38B",nonce="000a8b40Y0100409c13ac7e6cceb069289041d8feb1691",uri="/axis-media/media.amp",cnonce="9946e2582bd590418c9b70e1b17956c7",nc=00000001,response="f3cab86fc84bfe33719675848e7fdc0a",qop="auth" HTTP/1.0 200 OK Content-Type: application/x-rtsp-tunnelled Date: Tue, 02 Nov 2010 11:45:23 GMT RTSP/1.0 200 OK CSeq: 1 Content-Type: application/sdp Content-Base: rtsp://1.00408CBEA38B/axis-media/media.amp/ Date: Tue, 02 Nov 2010 11:45:23 GMT Content-Length: 410 v=0 o=- 1288698323798001 1288698323798001 IN IP4 1.00408CBEA38B s=Media Presentation e=NONE c=IN IP4 0.0.0.0 b=AS:50000 t=0 0 a=control:* a=range:npt=0.000000- m=video 0 RTP/AVP 96 b=AS:50000 a=framerate:30.0 a=transform:1,0,0;0,1,0;0,0,1 a=control:trackID=1 a=rtpmap:96 H264/90000 a=fmtp:96 packetization-mode=1; profile-level-id=420029; sprop-parameter-sets=Z0IAKeNQFAe2AtwEBAaQeJEV,aM48gA== RTSP/1.0 200 OK CSeq: 2 Session: 3F4763D8; timeout=60 Transport: RTP/AVP/TCP;unicast;interleaved=0-1;ssrc=060922C6;mode="PLAY" Date: Tue, 02 Nov 2010 11:45:24 GMT RTSP/1.0 200 OK CSeq: 3 Session: 3F4763D8 Range: npt=0- RTP-Info: url=rtsp://1.00408CBEA38B/axis-media/media.amp/trackID=1;seq=7392;rtptime=4190934902 Date: Tue, 02 Nov 2010 11:45:24 GMT [Binary Stream Content] But when i copy this request to fiddler, I only get 200 status code with content-type set to application/x-rtsp-tunneled and there is no stream data. The only thing i do different with stream is to use Basic in authorization header instead of Digest and I do not get 401 (Un authorized) status code. Can anyone explain what's happening here? How can I write request sequences to get stream in fiddler? If it is needed, I can upload the wireshark request dump somewhere.

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  • Stop squid caching 302 and 307 with deny_info

    - by 0xception
    TLDR: 302, 307 and Error pages are being cached. Need to force a refresh of the content. Long version: I've setup a very minimal squid instance running on a gateway which shouldn't not cache ANYTHING but needs to be solely used as a domain based web filter. I'm using another application which redirects un-authenticated users to the proxy which then uses the deny_info option redirects any non-whitelisted request to the login page. After the user has authenticated the firewall rule gets placed so they no longer get sent to the proxy. The problem is that when a user hits a website (xkcd.com) they are unauthenticated so they get redirected via the firewall: iptables -A unknown-user -t nat -p tcp --dport 80 -j REDIRECT --to-port 39135 to the proxy at this point squid redirects the user to the login page using a 302 (i've also tried 307, and i've also make sure the headers are set to no-cache and/or no-store for Cache-Control and Pragma). Then when the user logs into the system they get firewall rule which no longer directs them to the squid proxy. But if they go to xkcd.com again they will have the original redirection page cached and will once again get the login page. Any idea how to force these redirects to NOT be cached by the browser? Perhaps this is a problem w/ the browsers and not squid, but not sure how to get around it. Full squid config below. # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 acl localnet src 192.168.182.0/23 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl https port 443 acl http port 80 acl CONNECT method CONNECT # # Disable Cache # cache deny all via off negative_ttl 0 seconds refresh_all_ims on #error_default_language en # Allow manager access only from localhost http_access allow manager localhost http_access deny manager # Deny access to anything other then http http_access deny !http # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !https visible_hostname gate.ovatn.net # Disable memory pooling memory_pools off # Never use neigh cache objects for cgi-bin scripts hierarchy_stoplist cgi-bin ? # # URL rewrite Test Settings # #acl whitelist dstdomain "/etc/squid/domains-pre.lst" #url_rewrite_program /usr/lib/squid/redirector #url_rewrite_access allow !whitelist #url_rewrite_children 5 startup=0 idle=1 concurrency=0 #http_access allow all # # Deny Info Error Test # acl whitelist dstdomain "/etc/squid/domains-pre.lst" deny_info http://login.domain.com/ whitelist #deny_info ERR_ACCESS_DENIED whitelist http_access deny !whitelist http_access allow whitelist http_port 39135 transparent ## Debug Values access_log /var/log/squid/access-pre.log cache_log /var/log/squid/cache-pre.log # Production Values #access_log /dev/null #cache_log /dev/null # Set PID file pid_filename /var/run/gatekeeper-pre.pid SOLUTION: I believe I might have found a solution to this. After days and days trying to figure it out, only through a random stumble I found client_persistent_connections off server_persistent_connections off This did the trick. So it wasn't so much cache as it was a single persistent connection messing things up. W000T!

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  • Transparent Squid : Logging client ip problem

    - by llazzaro
    Hello, I am using the following rules in iptables in my network to use a transparent proxy * iptables -t nat -A PREROUTING -i eth0 -s ! squid-box -p tcp --dport 80 -j DNAT --to squid-box:3128 * iptables -t nat -A POSTROUTING -o eth0 -s local-network -d squid-box -j SNAT --to iptables-box * iptables -A FORWARD -s local-network -d squid-box -i eth0 -o eth0 -p tcp --dport 3128 -j ACCEPT But my squid log, always logs gateway IP (172.16.0.1) Do you know an alternative to not lose client IP? (of course avoid saing manual proxy setup!)

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  • “X_FORWARDED_FOR” Header Doesn't Present In The Request

    - by Radi
    In my web application I need to extract the real ip address for clients behind proxy, after searching I found that the possible method to do that is to read the content of "X_FORWARDED_FOR" header , I am using java servlet and the headers of the incoming request doesn't contain "X_FORWARDED_FOR" header , So why the header doesn't included in the request? I am using java 1.7 , tomcat v7 , proxy server :TMG and configured to use "X_FORWARDED_FOR" header . Please advice. Thanks in advance.

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  • Outlook express under RHEL 5 server

    - by Kumar P
    I am using RHEL 5 server as proxy server in Local network. Under server i have few windows machines. Now i want to configure Outlook express in windows boxes, When i configure and test connections, It showing connection failed. In browser, internet working well. Without proxy, windows outlook express configure well in windows boxes. And working well. What you think about it and How can i solve this problem ?

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