Where to download Microsoft Visual Studio 2008 Express Edition

The Microsoft Visual Studio 2008 Express Editions are a free set of tools that are simple, fun and easy to learn. Continuing the Microsoft tradition of enabling developers of all skill levels, this latest release enables hobbyists, students, experienced and casual developers alike to create cool, fun applications.

http://www.microsoft.com/en-us/download/details.aspx?id=6506

Installing IIS 7 on Windows Vista and Windows 7

Complet article in:
http://www.iis.net/learn/install/installing-iis-7/installing-iis-on-windows-vista-and-windows-7

Introduction

You can use the Microsoft^® Web Platform Installer (Web PI) to easily install Internet Information Services (IIS), and applications that run on IIS. To learn more about the Web PI, see Learn about and install the Web PI.
If you choose to install IIS 7.0 or above manually, you can use this article for guidance.

Before You Begin

Ensure that you have installed one of the editions of Windows Vista or Windows 7 on which IIS 7 and above is supported before you proceed. Not all IIS features are supported on all editions of Windows Vista and Windows 7. Home Basic and Starter editions include only limited basic features of IIS. To see a list of which features are supported on the edition of Windows you are using, see one of the following:

• Available Role Services in IIS 7.0 (Windows Vista)
• Available Web Server (IIS) Role Services in IIS 7.5 (Windows 7)

Also be sure that you have administrative user rights on the computer. By default, you do not have administrative user rights if you are logged on as a user other than the built-in administrator, even if you were added to the local Administrators group on the computer (this is a new security feature in Windows Server^® 2008 called Local User Administrator). Log on either to the built-in administrator account, or explicitly invoke applications as the built-in administrator by using the runas command-line tool.

How Application Pools Work (IIS 6.0

When you run IIS 6.0 in worker process isolation mode, you can separate different Web applications and Web sites into groups known as application pools. An application pool is a group of one or more URLs that are served by a worker process or set of worker processes. Any Web directory or virtual directory can be assigned to an application pool.

Every application within an application pool shares the same worker process. Because each worker process operates as a separate instance of the worker process executable, W3wp.exe, the worker process that services one application pool is separated from the worker process that services another. Each separate worker process provides a process boundary so that when an application is assigned to one application pool, problems in other application pools do not affect the application. This ensures that if a worker process fails, it does not affect the applications running in other application pools.

Use multiple application pools when you want to help ensure that applications and Web sites are confidential and secure. For example, an enterprise organization might place its human resources Web site and its finance Web site on the same server, but in different application pools. Likewise, an ISP that hosts Web sites and applications for competing companies might run each companys Web services on the same server, but in different application pools. Using different application pools to isolate applications helps prevent one customer from accessing, changing, or using confidential information from another customers site.

In HTTP.sys, an application pool is represented by a request queue, from which the user-mode worker processes that service an application pool collect the requests. Each pool can manage requests for one or more unique Web applications, which you assign to the application pool based on their URLs. Application pools, then, are essentially worker process configurations that service groups of namespaces.

Multiple application pools can operate at the same time. An application, as defined by its URL, can only be served by one application pool at any time. While one application pool is servicing a request, you cannot route the request to another application pool. However, you can assign applications to another application pool while the server is running.

by http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/67e39bd8-317e-4cf6-b675-6431d4425248.mspx?mfr=true

What is Application Pool in IIS ?

Before Giving the Definition : you can say like this, Concept of Application pool has from IIS 6.0 .
Application pools are used to separate sets of IIS worker processes that share the same configuration and application boundaries. Application pools used to isolate our web application for better security, reliability, and availability and performance and keep running with out impacting each other . The worker process serves as the process boundary that separates each application pool so that when one worker process or application is having an issue or recycles, other applications or worker processes are not affected.
One Application Pool can have multiple worker process Also.

Main Point to Remember:
1. Isolation of Different Web Application
2. Individual worker process for different web application
3. More reliably web application
4. Better Performance
by http://www.dotnetfunda.com/interview/exam1414-what-is-application-pool-in-iis.aspx

Pesquisa em ficheiros do fim para o ínicio

Sempre que preciso de pesquisar num ficheiro com demasiadas linhas tenho sempre o problema de encontrar o que quero.

O problema é que o grep obriga a saber o que pesquisar - e por vezes não se sabe.

Para ver um ficheiro do fim para o final:

  less +G extractor.log

Procurar ficheiros numa máquina recursivamente

Para proceder a pesquisa de ficheiros recursivamente:

    find . -name '*.tar'