Microsoft Certification Courses and Details

MCSE/MCSA Training Courses:
# Course 2273: Managing and Maintaining a Microsoft Windows Server 2003 Environment
# Course 2276: Implementing a Microsoft Windows Server 2003 Network Infrastructure: Network Hosts
# Course 2277: Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure: Network Services
# Course 2278: Planning and Maintaining a Microsoft Windows Server 2003 Network Infrastructure
# Course 2279: Planning, Implementing, and Maintaining a Microsoft Windows Server 2003 Active Directory Infrastructure
# Course 2282: Designing a Microsoft Windows Server 2003 Active Directory and Network Infrastructure
# Course 2285: Installing, Configuring, and Administering Microsoft Windows XP Professional
# Course 2830: Designing Security for Microsoft Networks

MCDBA Training Courses:
# Course 2071: Querying Microsoft SQL Server 2000 with Transact-SQL
# Course 2072: Administering a Microsoft SQL Server 2000 Database
# Course 2073: Programming a Microsoft SQL Server 2000 Database

MCSD .NET/MCAD Training Courses:
# Course 2124: Programming with C#
# Course 2310: Developing Microsoft ASP.NET Web Applications Using Visual Studio .NET
# Course 2389: Programming with Microsoft ADO.NET
# Course 2524: Developing XML Web Services Using Microsoft ASP.NET
# Course 2557: Building COM+ Applications Using Microsoft .NET Enterprise Services
# Course 2565: Developing Microsoft .NET Applications for Windows (Visual Basic .NET)
# Course 2710: Analyzing Requirements and Defining Microsoft .NET Solution Architectures


MCSE/MCSA Certification Exams:
# Exam 70-270: Installing, Configuring, and Administering Microsoft Windows XP Professional
# Exam 70-290: Managing and Maintaining a Microsoft Windows Server 2003 Environment
# Exam 70-291: Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure
# Exam 70-292: Managing and Maintaining a Microsoft Windows Server 2003 Environment for an MCSA Certified on Windows 2000
# Exam 70-293: Planning and Maintaining a Microsoft Windows Server 2003 Network Infrastructure
# Exam 70-294: Planning, Implementing, and Maintaining a Microsoft Windows Server 2003 Active Directory Infrastructure
# Exam 70-297: Designing a Microsoft Windows Server 2003 Active Directory and Network Infrastructure
# Exam 70-298: Designing Security for a Microsoft Windows Server 2003 Network

MCDBA Certification Exams:
# Exam 70-215: Installing, Configuring, and Administering Microsoft Windows 2000 Server
# Exam 70-228: Installing, Configuring, and Administering Microsoft SQL Server 2000 Enterprise Edition
# Exam 70-229: Designing and Implementing Databases with Microsoft SQL Server 2000 Enterprise Edition

MCSD .NET/MCAD Certification Exams:
# Exam 70-230: Designing and Implementing Solutions with Microsoft BizTalk Server 2000, Enterprise Edition
# Exam 70-300: Analyzing Requirements and Defining Microsoft .NET Solution Architectures
# Exam 70-305: Developing and Implementing Web Applications with Microsoft Visual Basic .NET and Microsoft Visual Studio .NET
# Exam 70-306: Developing and Implementing Windows-based Applications with Microsoft Visual Basic .NET and Microsoft Visual Studio .NET
# Exam 70-310: Developing XML Web Services and Server Components with Microsoft Visual Basic .NET and the Microsoft .NET Framework
# Exam 70-315: Developing and Implementing Web Applications with Microsoft Visual C# .NET and Microsoft Visual Studio .NET
# Exam 70-316: Developing and Implementing Windows-based Applications with Microsoft Visual C# .NET and Microsoft Visual Studio .NET
# Exam 70-320: Developing XML Web Services and Server Components with Microsoft Visual C# .NET and the Microsoft .NET Framework

Old password issue with AD (strange Microsoft )

Hi guys to day we faced a new issue with windows server 2003 AD , Old password will still be used for one hour after changing to new password. Reasons are given below 

Below is the snap shot of a article having info about use of old password:

To reliably support network access for NTLM network authentication in distributed environments, Windows Server 2003 SP1 modifies the NTLM network authentication behavior as follows:
After a domain user successfully changes a password by using NTLM, the old password can still be used for network access for a user-definable time period. This behavior allows accounts, such as service accounts, that are logged on to multiple computers to access the network while the password change propagates.

Reference : http://support.microsoft.com/kb/906305

The article details how to change the behavior. Its a registry change, which our servers don't have. And if they are missing the setting, then they default to 60 minutes.
Note : This behavior does not cause a security weakness. As long as only one user knows both passwords, the user is still securely authenticated by using either password.


C  u  in next post
Venky

Factory Pattern

                                                                Factory Pattern


The factory design pattern is very simple. Several other patterns, like the abstract factory pattern, build off of it though, so it is a common base pattern. You use this pattern when one or more of the following are true:

1. A class can't anticipate the class of object it must create.
2. A class wants its subclasses to specify the objects it creates.
3. Classes delegate responsibility to one of several helper subclasses, and you want to localize the knowledge of which helper subclass is the delegate.[GOF108]

The class is easy to implement and consists of an identifier, either named constants or an enum and a switch statement. For our example we will be creating dog objects. As with any good OO design we start with an interface for our related objects.

The IDog interface


Code:

    public interface IDog
    {
        void Bark();
        void Scratch();
    }

We just define a couple of simple methods for our dogs to do.

    Now for the two actual concrete dog classes. We define a bulldog and poodle class:

Code:

    public class CPoodle : IDog
    {
        public CPoodle()
        {
            Console.WriteLine("Creating Poodle");
        }
        public void Bark()
        {
            Console.WriteLine("Yip Yip");
        }
        public void Scratch()
        {
            Console.WriteLine("Scratch Scratch");
        }
    }

    public class CBullDog : IDog
    {
        public CBullDog()
        {
            Console.WriteLine("Creating Bulldog");
        }
        public void Bark()
        {
            Console.WriteLine("Wooof Wooof");
        }
        public void Scratch()
        {
            Console.WriteLine("Scratch Slobber Scratch");
        }
    }

    Now for our factory class. It’s static and contains one method to return the correct dog.


Code:

    public class CDogFactory
    {
        public enum DogType
        {
            Poodle,Bulldog
        }
        static CDogFactory()
        {
        }
        public static IDog CreateDog(DogType TypeOfDog)
        {
            switch (TypeOfDog)
            {
                case DogType.Bulldog:
                    return new CBullDog();
                case DogType.Poodle:
                    return new CPoodle();
                default:
                    throw new ArgumentException("Invalid Dog Type!");
            }
        }
    }

We make the class static so we don’t need an instance of the class.

    To test the class, I have created a simple function. Our test function just return the dogs and uses them. In a more real world app, the type of dog would have been determined by the user or through program logic.


Code:
        IDog dog1;
        IDog dog2;

        dog1 = CDogFactory.CreateDog(CDogFactory.DogType.Bulldog);
        dog2 = CDogFactory.CreateDog(CDogFactory.DogType.Poodle);

        dog1.Bark();
        dog1.Scratch();

        dog2.Bark();
        dog2.Scratch();