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Can't connect via VPN
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Irdis 2012-09-10, 15:17 #1
Member since Sep 2012 · 10 posts
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Subject: Can't connect via VPN
When i try to connect the demo apps to any jabber server i catch several exceptions ("No DNS server found", "System error").  But other xmpp clients which i have on my computer work well. I suspect it heppens because I have VPN connection.
My agsXMPP version 1.1.0.0.
My ipconfig /all: [deleted] :P
This post was edited 2 times, last on 2012-09-10, 18:29 by Irdis.
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Alex 2012-09-10, 18:26 #2
Member since Feb 2003 · 4449 posts · Location: Germany
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agsXMPP is using the following code to find your DNS servers:

  1. public static List<IPAddress> DnsServers
  2. {
  3.     get
  4.     {
  5.         var dnsServers = new List<IPAddress>();
  6.         var interfaces = NetworkInterface.GetAllNetworkInterfaces();
  7.         foreach (var eth in interfaces)
  8.         {
  9.             if (eth.OperationalStatus == OperationalStatus.Up)
  10.             {
  11.                 var ethProperties = eth.GetIPProperties();
  12.                 var dnsHosts = ethProperties.DnsAddresses;
  13.                 dnsServers.AddRange(dnsHosts);
  14.             }
  15.         }
  16.         return dnsServers;
  17.     }
  18. }

Then its using the 1st DNS server to lookup the SRV records. It does not try all DNS servers when there are multiple.
You can checkout the sources and debug it on your system.

Alex
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Irdis 2012-09-10, 18:29 #3
Member since Sep 2012 · 10 posts
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seems reasonable, thx...
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