This article describes the on-access scanning options for Sophos Anti-Virus for Linux.
Applies to the following Sophos products and versions Sophos Anti-Virus for Linux
Sophos Anti-Virus for Linux provides several methods of enabling on-access file scanning, using either fanotify or Talpa.
Support for fanotify is included in Sophos Anti-Virus version 9.7.x and higher. Fanotify allows on-access scanning to run on kernels from 2.6.37+ onwards, without needing to compile additional kernel modules. For more information, please see: Sophos Anti-Virus for Linux: Fanotify Overview.
Talpa is an alternative kernel interface to fanotify, provided by Sophos, and can be enabled via two supported methods:
Sophos provides precompiled binary packs for certain kernels (see TalpaBinaryPacks.txt for a full list).
The Sophos Anti-Virus for Linux installer will attempt to enable on-access scanning as follows:
The latest kernel version supported by the local compilation method is the 4.8 kernel and below as of Sophos Anti-Virus for Linux 9.13.1/10.1.1 (Central 64bit) +
The latest kernel version supported by this method in the upcoming 9.14.0/10.3.0 (Central 64 bit)
release will be 4.12 and below.
Fanotify can be set as the default kernel interface for on-access scanning, in preference to Talpa. For more information, see: Sophos Anti-Virus for Linux: Fanotify Overview
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