FortiEDR
FortiEDR automates the protection against advanced threats, pre and post-execution, with real time orchestrated incident response functionality.
dmeeker
Staff
Staff
Article Id 218506
Description This article describes what features application mode offers on Linux collectors, as well as its limitations.
Scope Linux Collector 4.5.x, 5.1.1 and 5.1.2.x, 5.1.5.x.
Solution

Linux Collector 4.5.1 and up has two modes of operation:

  • kernel.
  • application-only.

 

When the Collector starts, it reads the Linux kernel on the machine. If the Linux kernel is supported, the Collector enters into a full kernel mode of operation (kernel).

Otherwise, instead of going into a degraded state, the Collector runs as a Linux application with limited functionality (application-only).

 

The following is a summary of existing Linux Collector versions and their operation modes:

 

Collector version

App/Kernel

5.1.13

Adaptive

5.1.11

Adaptive

5.1.10

Adaptive

v5.1.8

Adaptive

v5.1.2, v5.1.5

Adaptive

v5.1.1

 

Adaptive

v4.5.1

Application/Kernel

v4.5.0.145+

Application

v4.5.0.139

Application

v4.5.0.137

Application

v4.1 and lower

Kernel

 

Review the admin guide for supported OSes:

 

Linux Application features summary:

 

Main supported functions of the Linux Collector application mode:

 

  • Pre-execution Prevention.
  • Communication Control visibility.
  • Installation, revision upgrades, uninstallation.
  • Analysis: File retrieval.
  • IR: File remediation, kill process.

 

Known limitations of the Linux Collector application mode:

 

  1. Communication Control blocks are not possible.
  2. IR: Device isolation with Collector is not possible.
  3. Limited Forensics visibility is available.
  4. Threat-hunting is not available for Collectors prior to v5.1.1.
  5. Upgrades from Collector v3.1 or 4.1 to v4.5 are not possible. v4.5.0 is application only.
  6. Hardening of the Collector files is not possible.
  7. The Request Custom Installers feature in the Manager Console is not available.

 

v5.1.1, v5.1.5 What is Included:

  • This collector version can run on any supported Linux distributions: CentOS/RHEL, Ubuntu, Oracle, AMI, and SLES.
  • Threat-hunting data collection is available in user space mode.
  • FortiEDR Linux kernel modules are signed.

 

v5.1.2 What is Included:

  • This collector version supports Ubuntu 22.04 and RHEL 9/Centos 9.