McAfee virusscan tc 6 Mode D'Emploi
4
Administrator’s Guide
49
4
Updating and Mirroring Tasks
Why update?
To protect your network, the VirusScan TC software needs regular updates of
its virus definition files (.DAT files), improvements to its scanning engine, and
other technical enhancements. Without updated files, the VirusScan TC
software might not detect new virus strains or respond to them effectively.
McAfee releases new .DAT files weekly to provide protection against the
approximately 500 new viruses that appear each month. If new, dangerous
viruses appear between regular weekly releases, McAfee issues a special .DAT
file, known as EXTRA.DAT to deal with the outbreak. Periodically, McAfee
releases upgrades to the scanning engine, incorporating improved technology
for dealing with malicious code.
its virus definition files (.DAT files), improvements to its scanning engine, and
other technical enhancements. Without updated files, the VirusScan TC
software might not detect new virus strains or respond to them effectively.
McAfee releases new .DAT files weekly to provide protection against the
approximately 500 new viruses that appear each month. If new, dangerous
viruses appear between regular weekly releases, McAfee issues a special .DAT
file, known as EXTRA.DAT to deal with the outbreak. Periodically, McAfee
releases upgrades to the scanning engine, incorporating improved technology
for dealing with malicious code.
McAfee has introduced a new incremental .DAT technology, called iDAT. It
consists of small file collections that contain only the virus definitions that
have changed between weekly .DAT file releases—not the entire .DAT file set.
This development means that you can download .DAT file updates much
faster, and at a far lower cost in bandwidth, than ever before. McAfee offers
free .DAT file updates for the life of your product. McAfee also distributes
updated .DAT files in a form known as SuperDAT, which includes periodic
upgrades to the scanning engine.
consists of small file collections that contain only the virus definitions that
have changed between weekly .DAT file releases—not the entire .DAT file set.
This development means that you can download .DAT file updates much
faster, and at a far lower cost in bandwidth, than ever before. McAfee offers
free .DAT file updates for the life of your product. McAfee also distributes
updated .DAT files in a form known as SuperDAT, which includes periodic
upgrades to the scanning engine.
VirusScan TC supports full updates of all .DAT files, incremental changes to
the .DAT files currently in use, and SuperDAT upgrades of the scanning
engine. The update task includes functionality that determines which kind of
update is required to achieve the maximum virus protection.
the .DAT files currently in use, and SuperDAT upgrades of the scanning
engine. The update task includes functionality that determines which kind of
update is required to achieve the maximum virus protection.
Overview of the updating and mirroring tasks
Revised virus definition files appear on the Network Associates FTP site as
data file packages identified by the extension .DAT. (The update site is
ftp.nai.com/virusdefs/4.x.) A .DAT package consists of a .ZIP archive file
named DAT-XXXX.ZIP. The XXXX in the file name is a series number that
changes with each .DAT file release. The Automatic DAT Update utility
downloads these files, stops the on-access scanner temporarily, installs the
revised files, then restarts the on-access scanner. The scanner will then use the
revised files immediately.
data file packages identified by the extension .DAT. (The update site is
ftp.nai.com/virusdefs/4.x.) A .DAT package consists of a .ZIP archive file
named DAT-XXXX.ZIP. The XXXX in the file name is a series number that
changes with each .DAT file release. The Automatic DAT Update utility
downloads these files, stops the on-access scanner temporarily, installs the
revised files, then restarts the on-access scanner. The scanner will then use the
revised files immediately.
¥ NOTE: McAfee recommends that client have access to a utility for
extracting .ZIP files.