About 2 months ago I wrote that trackbacks didn't work from dasBlog... but I learned *backs do. But it toke a while to notice, here's what happened. Oh, let's clarify first, *backs are TrackBacks and PingBacks. Essentially you want to achieve the same thing with both, get a link on the (blog)page you reffer to.
I'm running my blog on a Windows Small Business Server 2003 R2, with ISA Server 2004. Also I had the blog configured to automatically ping the available servers using the XML-RPC Ping Interface. When I checked dasBlogs Eventlog after a couple of posts, it was filled with error messages like;
Error:CookComputing.XmlRpc.XmlRpcServerException: Forbidden ( The ISA Server denied the specified Uniform Resource Locator (URL). ) at CookComputing.XmlRpc.XmlRpcClientProtocol.ReadResponse(XmlRpcRequest req, WebResponse webResp, Stream respStm, Type returnType) at CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(Object clientObj, String methodName, Object[] parameters) at CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(String MethodName, Object[] Parameters) at newtelligence.DasBlog.Runtime.Proxies.WeblogUpdatesClientProxy.Ping(String weblogName, String weblogUrl) at newtelligence.DasBlog.Runtime.BlogDataServiceXml.PingWeblogsWorker(Object argument)while processing PingWeblogsWorker, pinging Yahoo.
So the configuration of the ISA Server was preventing the IIS Application Pool of reaching out to the world. Well, a little tweaking of the ISA config and the next posts' event resulted in... another error. Only this time the message wasn't saying ISA Server was in denial. The other end just didn't seem listening;
Error:System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A socket operation was attempted to an unreachable host at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) --- End of inner exception stack trace --- at System.Net.HttpWebRequest.GetRequestStream() at CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(Object clientObj, String methodName, Object[] parameters) at CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(String MethodName, Object[] Parameters) at newtelligence.DasBlog.Runtime.Proxies.WeblogUpdatesClientProxy.Ping(String weblogName, String weblogUrl) at newtelligence.DasBlog.Runtime.BlogDataServiceXml.PingWeblogsWorker(Object argument)while processing PingWeblogsWorker, pinging Yahoo.
I also noticed that "normal" url (the ones I linked in my posts) were pinged, with much the same (= NO) result.
Error:/* As above */--- End of inner exception stack trace --- at System.Net.HttpWebRequest.GetResponse() at newtelligence.DasBlog.Runtime.BlogDataServiceXml.PingbackWorker(Object argument)while processing PingbackWorker, auto-discovery of: http://msdn2.microsoft.com/en-us/library/ms175535.aspx.
After that I left it be and didn't worry about TB and PB anymore. However, today I found a refferal in the activity log from lostcausegeek.blogspot.com, so I got curious again. I did nothing besides including a link to one of the posts, turns out something did work after all. Now back to the errors, so far I assume I'm looking at pingbacks (look here for a comparision on the *backs). In the end, it will pretty much come down to the blog service and the blog configuration, wether it works (or not).
Trackbacks, I think, is a different story with dasBlog and/or WindowsLiveWriter.