The latest release build (version 7.3, build 2371) of Backup
Exec for Windows NT from Veritas (who recently bought the product
from Seagate) now supports Linux
An upgrade from Backup Exec version 7.2 to this version is free.
Those who use Backup Exec 7.0 or earlier must pay an upgrade fee.
No details are available on the Veritas website for obtaining only
the Linux client code without the server portion.