[Mono-list] Windows to Linux Remoting problem

Anset anset@anset.org
Fri, 8 Oct 2004 10:44:09 +0200


Hi,

There was a discussion about inter-os remoting on this list about a week
ago. If you search the archives, you should be able to find it.

The main idea is that remoting between os-es, or even between different
versions of .Net (or indeed between different version of mono) is not
guaranteed by the standard.

You can only be sure it will work if you are using the exact same framework
and framework version.

At least, that is what I understaad from the discussion. But again, do a
searchin the archives and you should get plenty of information.

Wkr,

Anset

----- Original Message ----- 
From: "Zbigniew Babiej" <zbigniewb@hotmail.com>
To: <mono-list@lists.ximian.com>
Sent: Thursday, October 07, 2004 3:52 PM
Subject: [Mono-list] Windows to Linux Remoting problem


> Hello All,
> I was wondering if anyone had encountered the following problem.
> I have a simple remoting test program (binaries compiled with MS .NET C#
(VS
> 2003 ver. 7.1.3088 .NET Runtime 1.1.4322 SP1).
> This works OK in the scenarios Windows -> Windows(both local and remote
> server) and Linux -> Linux (local server only, did not test
> remote server), but does not work in the scenarions Windows->Linux and
> Linux->Windows.
>
> In the scenario Windows->Linux, the client throws the following exception
> when trying to activate the first object:
>
> A) When hosted by Mono (ver. 1.0.2):
>
> Unhandled Exception: System.Runtime.Remoting.RemotingException: No such
host
> is known
> Server stack trace:
> in <0x000c4>
> System.Runtime.Remoting.Channels.Tcp.HostConnectionPool:CreateConnection
()
> in <0x00112>
> System.Runtime.Remoting.Channels.Tcp.HostConnectionPool:GetConnection ()
> in <0x00105>
> System.Runtime.Remoting.Channels.Tcp.TcpConnectionPool:GetConnection
> (string,int)
> in <0x00146>
> System.Runtime.Remoting.Channels.Tcp.TcpClientTransportSink:Process
> Message
>
(System.Runtime.Remoting.Messaging.IMessage,System.Runtime.Remoting.Channels
.ITransportHeaders,System.IO.Stream,System.Runtime.Remoting.Channels.ITransp
ortHeaders&,System.IO.Stream&)
> in <0x002bc>
>
System.Runtime.Remoting.Channels.BinaryClientFormatterSink:SyncProcessMessag
e
> (System.Runtime.Remoting.Messaging.IMessage)
>
> Exception rethrown at [0]:
>
> in <0x00583> System.Runtime.Remoting.Proxies.RealProxy:PrivateInvoke
>
(System.Runtime.Remoting.Proxies.RealProxy,System.Runtime.Remoting.Messaging
.IMessage,System.Exception&,object[]&)
>
> B) When hosted by .NET
> Error: The requested name is valid and was found in the database, but it
> does not have the correct associated data being resolved for
> Source: mscorlib
> Stack:
> Server stack trace:
>    at System.Net.Dns.GetHostByName(String hostName)
>    at System.Net.Dns.Resolve(String hostName)
>    at System.Runtime.Remoting.Channels.RemoteConnection..ctor(SocketCache
> socketCache, String machineAndPort)
>    at System.Runtime.Remoting.Channels.SocketCache.GetSocket(String
> machineAndPort)
>    at
> System.Runtime.Remoting.Channels.Tcp.TcpClientTransportSink.SendRequestWit
> hRetry(IMessage msg, ITransportHeaders requestHeaders, Stream
requestStream)
>    at
> System.Runtime.Remoting.Channels.Tcp.TcpClientTransportSink.ProcessMessage
> (IMessage msg, ITransportHeaders requestHeaders, Stream requestStream,
> ITransportHeaders& responseHeaders, Stream& responseStream)
>    at
>
System.Runtime.Remoting.Channels.BinaryClientFormatterSink.SyncProcessMessag
e(IMessage
> msg)
>
> Exception rethrown at [0]:
>    at
System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage
> reqMsg, IMessage retMsg)
>    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&
> msgData, Int32 type)
>    at MXSRemoteQuote.QuoteProvider.AddQuoteListener(IQuoteListener
listener)
>    at MXSRemoteClient.RemoteClient.Run()
> Inner:
>
> In the scenario Linux->Windows , the same errors are reported, but this
time
> by the server.
>
> The windows version is Win2K SP4 and the linux is Fedora Core 2. Both
> machines are in the same lan (switch).
> I tested both IP and hostname, but no success.
> I run other services(like ftp, samba etc.) on that Linux box and can
access
> them from Windows clients using both IP and hostname without any problems.
>
> Would you have any hints about how resolve this issue ?
> The sample binaries can be downloaded from the following link:
> http://members.chello.nl/z.babiej/MXSRemote.zip
>
> Thank you in advance for your help.
>
> Zbigniew Babiej, MarketXS.COM
>
>
> Here is the server side .config:
>
>
> <configuration>
>    <system.runtime.remoting>
>       <application>
>          <service>
>            <activated
>              type="MXSRemoteQuote.QuoteProviderController, MXSRemoteQuote"
>            />
>           <activated
>              type="MXSRemoteQuote.QuoteProvider, MXSRemoteQuote"
>            />
>          </service>
>          <channels>
>              <channel ref="tcp" port="8787">
>                  <serverProviders>
>                      <formatter ref="binary" typeFilterLevel="Full" />
>                   </serverProviders>
>                  <clientProviders>
>                      <formatter ref="binary" />
>                  </clientProviders>
>               </channel>
>          </channels>
>       </application>
>    </system.runtime.remoting>
> </configuration>
>
>
> ... and the client side .config:
>
> <configuration>
>   <system.runtime.remoting>
>     <application name="MXSRemoteTerminal">
>        <channels>
>           <channel ref="tcp" port="0">
>              <clientProviders>
>                 <formatter ref="binary" />
>              </clientProviders>
>              <serverProviders>
>                 <formatter ref="binary" typeFilterLevel="Full" />
>              </serverProviders>
>           </channel>
>        </channels>
>        <client url="tcp://10.1.3.13:8787">
>          <activated type="MXSRemoteQuote.QuoteProviderController,
> MXSRemoteQuote" />
>          <activated type="MXSRemoteQuote.QuoteProvider, MXSRemoteQuote" />
>       </client>
>     </application>
>   </system.runtime.remoting>
> </configuration>
>
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