SQL Protocols : Understanding Kerberos and NTLM authentication i. In this post, I focus on how NTLM and Kerberos are applied when connecting to SQL Server 2005 and try to explain the design behavor behind several common issues that customers frequently hit.
On this page: Kerberos VS NTLM. Requirements for Kerberos and NTLM in SQL Connections. When are Kerberos and NTLM are applied when connecting to SQL Server 2005. Common issues and workaround. Troubleshooting Tips checklist. I. NTLM Authentication: Challenge- Response mechanism. Kerberos authentication: Trust-Third-Party Scheme. Kerberos authentication provides a mechanism for mutual authentication between a client and a server on an open network.The three heads of Kerberos comprise the Key Distribution Center (KDC), the client user and the server with the desired service to access.
II. Kerberos, several aspects needed: 1) Client and Server must join a domain, and the trusted third party exists; if client and server are in different domain, these two domains must be configured as two-way trust. NTLM fallback. Never doubt thy debugger : Unable to get the private bytes memor. PROBLEM DESCRIPTION =================== I can run ASP.NET applications on the server, however I have noticed that when I do there is an asp error entry in the event log: "Unable to get the private bytes memory limit for the W3WP process.
The ASP.NET cache will be unable to limit its memory use, which may lead to a process restart. Error 0x80070005". ENVIRONMENT =========== - Windows Server 2003 - .NET Framework 1.1 SUMMARY of TROUBLESHOOTING ========================== This error is caused by a known issue with insufficient permissions in your IIS metabase. The metabase ACL's on the target server did not include the IIS_WPG group on the following two nodes of the metabase (IIS_WPG is in both ACL's on a clean install): - W3SVC/AppPools - W3SVC/Filters You can download the MetaACL utility from After you have installed the program, open a command prompt and navigate to the directory where you installed it.
. - cscript metaacl.vbs IIS_WPG RE - cscript metaacl.vbs IIS_WPG RE Carlo. Fooshen's : Performance Point Server 2007 and AJAX on Share. If you have Microsoft Performance Point Server 2007 installed, and you do not have ASP.Net AJAX extension installed (probably like me, I use .Net 3.5), you will probably get errors in your site when you have a Performance Point Dashboard Item webpart loaded: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies.
The system cannot find the file. Well instead of installing ASP.Net AJAX Extension 1.0, we can still make it work via Assembly Redirections. Here's how: 1. 2. 3. Remember there are 3 web.configs that needs to change here: under PPSMonitoring/WebServiceunder PPSMonitoring/Previewyour SharePoint site Now your PerformancePoint webparts will load fine in SharePoint (and you can use the Dashboard Designer) without having to install ASP.Net AJAX Extension! What happens is that PerformancePoint's webparts load its own ScriptManagerLoader, derived from the ScriptManager class.