Hello,
Yes, linux machines can be backed up remotely using backup exec. Please check out the software compatibility list to ensure that the linux version you are using is compatible with backup Exec 9.1:
http://support.veritas.com/docs/261695
If the linux version is compatible, you would need to install the linux agent which you can download from the following link:
http://support.veritas.com/docs/262592
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