Internet Information Service 6.0(IIS 6.0) is used for web hosting. It was been introduced along with Windows server 2003. IIS 6.0 features are Reliability, Security, Manageability, and Performance.
Reliability:
It uses a kernel mode component called HTTP.SYS to process HTTP request. HTTP.SYS is unaffected by the failure of any other IIS components. IIS can therefore continue to accept incoming requests, even if all website fails and applications are unavailable.
Security:
IIS 6.0 installs in a locked-down state by default. In this state, permissions are limited and many IIS services are disabled, so you need to enable them manually to use them. This reduces the likelihood of security breaches via unnecessary services.
IIS 6.0 introduces new options for authentication by supporting .NET passport identification and digest authentication. It also supports cryptographic processing through a cryptographic service provider.
Manageability: The IIS 6.0 Meta base is stored as a XML formatted text file, whereas in earlier IIS versions it was stored as a binary file. This makes it possible for administrator to read and edit the Meta base using text editors such as notepad. The new IIS 6.0 Meta base includes features that enable you to
*Revert to a previous state of the Meta base
*Import and export branches of the Meta base
*Edit the Meta base while IIS is running.
You can edit the IIS 6.0 Meta base remotely using Windows Management Instrumentation (WMI) or Active Directory Service Interface (ADSI). IIS 6.0 includes a set of new administration tools and scripts that simplify common tasks. These include an improved browser based administration tool called the remote administration (HTML) tool and command line admin through administrator scripts written in VB script.
Performance: It uses kernel mode process to handle requests. This server to host more sites and application than an IIS 5.0 server. It is particularly useful for Internet Service Providers. It supports 64GB data, which improves the retrieval data. It also provides improved algorithm for thread management, resource allocation. In IIS 6.0 you can create multiply worker processes for a single application or website. When the number of requests becomes too great for one worker process, other worker process take over the load.
These groupings of process-called web gardens improve the response time of busy sites and application.
Note Meta base: It is a file that stores configuration information for Internet information services. It is a file in XML format for editing purpose.
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