I was in the process of pointing my NHibernate to an Oracle 10g instance using ODP.Net and I received the below error message: The connection.driver_class must be specified in the NHibernate configuration section. I had been using a locally installed Microsoft SQL Server database up to that point. It turns out that I needed to […]
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When you have multiple websites running under different application pools on the same server, you may need to trouble shoot a specific worker process. On Windows 2003 and Internet Information Services 6 (IIS6), I use the iisapp.vbs script as shown in following command, as shown in Figure 1: Figure 1, Find AppPoolId using IIS 6 […]
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Troubleshooting a performance problem can be very complicated. Unfortunately, in many cases you prepare and begin learning about how to fix a performance problem when it is happening or just after a performance problem. The fact is, you need to monitor your system and gather statistics on what is considered “standard operating performance” before a […]
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When optimizing and tuning an ASP.NET application you may want to increase the value of the requestQueueLimit. The requestQueueLimit is the maximum number of requests that can be queued by an ASP.NET process before errors get returned to the client. Modify Request Queue Limit within the Aspnet.config Below, the requestQueueLimit is configured in the Aspnet.config […]
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I wrote 2 previous blogs about NTLM and Negotiate/Kerberos which discussed briefly about how those authentication packages work within the context of Integrated Windows Authentication. Another authentication package supported in Windows is called Secure Channel, also known as Schannel. This blog will not discuss the details of Schannel because the detail can be found here. […]
Read More →Object Relational Mapping technologies have been around for many years. Hibernate was one of the first, if not the first, ORM library which targeted the Java platform. Today, there are also NHibernate, which is a port of Hibernate to C# and the ADO.NET Entity Framework. Being a huge fan of the concept I am passionate […]
Read More →Kerberos is a request based authentication protocol. That means with each request, there is a resulting authentication step. See the following figure 1 where you notice a Ticket request for each GET Http Command. Figure 1, Network Monitor log for request based authentication This article covers the implementation of the authPersistNonNTLM attribute, that when set […]
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Prior to getting my job here at Microsoft, I was, and in many aspects still am passionate about NHibernate. I discovered a particular liking to ORM’s in general. I liked it so much that I wrote a book called “Working with NHibernate 3.0” which is available on Amazon or from the Wrox.com website. What I […]
Read More →IIS provides a number of different authentication techniques. One of which is Integrated Windows Authentication. Integrated Windows Authentication utilizes Negotiate/Kerberos or NTLM to authenticate users based on an encrypted ticket/message passed between a browser and a server. The preceding image shows a standard communication flow between Internet Explorer and IIS version 6+. The initial request […]
Read More →IIS provides a number of different authentication techniques. One of which is Integrated Windows Authentication. Integrated Windows Authentication utilizes Negotiate/Kerberos or NTLM to authenticate users based on an encrypted ticket/message passed between a browser and a server. The preceding image shows a standard communication flow between Internet Explorer and IIS version 6+. The initial request […]
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