kesl-supervisor.service: Control process exited, code=exited status=203 [KES for Linux]

[Antipova Anna]

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Description

After successful installation kesl-supervisor.service may refuse to start with the following error:

kesl-supervisor.service: Control process exited, code=exited status=203

journalctl -xe command provide more information related this error

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kesl-supervisor.service: Failed to execute command: Permission denied
kesl-supervisor.service: Failed at step EXEC spawning /var/opt/kaspersky/kesl/install-current/etc/init.d/kesl-supervisor: 
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kesl-supervisor.service: Control process exited, code=exited status=203
kesl-supervisor.service: Failed with result 'exit-code'.
Failed to start kesl.

Root cause

SElinux is enabled on the system and prohibits execution of the service.

Solution

You can check SELinux status by running: 

$ sestatus

If SELinux is enabled, then use the dedicated online help article to disable, configure and re-enable it.