Microsoft Sharepoint Products and Technologies Resource Kit eBook

Chapter 17: Configuring SharePoint Portal Server 2003 463
Manage Site Collection Owners and Manage Website Users
The purpose of these two links relate to managing access to sites and will be discussed
in Chapter 18, “Managing SharePoint Portal Server 2003.”
Manage Blocked File Types
Windows SharePoint Services provides the ability to restrict certain kinds of files
from being uploaded or retrieved, based on the file extension. By default, several
standard file extensions are blocked, including any file extensions that are treated as
executable files by Microsoft Windows Explorer. Files with curly braces, { or }, are
also blocked automatically. Because the list of blocked file types is maintained by
file extension, all files that use a file extension on the list cannot be uploaded or
downloaded, regardless of the file’s intended use.
The list of file extensions is controlled for the entire server or server farm and
is recorded in the configuration database. Additional file extensions can be blocked
(up to 1024 file types) by adding them to the list.
One thing to keep in mind is that when the list of file extensions is changed,
the change affects both new files being added to a website and files already posted
to a website. Users will be able to rename or delete a file with a blocked file extension
but will not be able to perform any other actions.
Even though this option appears in the Security Configuration section, it is
important to realize that technically this is just a file-extension checking mechanism.
For example, if the .mp3 file type is blocked and the user renames the file as .mpz,
the portal site will not block the uploaded file.
Configure Antivirus Settings
When you install an antivirus scanner that is compatible with SharePoint Portal
Server 2003, you can enable the antivirus protection feature for all servers for the
portal site on the Configure Antivirus Settings page. In a server farm deployment,
you will have to install antivirus software on every front-end Web server in the
server farm.
Remember that having such antivirus software installed on your front-end
servers will affect their performance and scalability. You will have to configure your
servers with additional processing power to compensate for the additional overhead.
Component Configuration
The Component Configuration links are used to manage search settings, configure
Single Sign-On, manage shared services, and to configure usage analysis, HTML
viewer settings, and diagnostic settings. If you have installed the optional backwardcompatible
document library component (for compatibility with SharePoint Portal
Server 2001), you can also configure document libraries (Web Storage System–based)