Octopus server installation on Linux
Historically Octopus Deploy was a solution to deploy software on Windows only, therefore the server component only supports installation on Windows.

This is for a couple of technical reasons:


Octopus Server takes a hard dependency on Internet Information Services (IIS) which itself only runs on Windows.
Octopus Server is written in the .NET Framework doesn't run on Linux.


Once you have the Octopus Deploy Server software installed, you can manage Linux hosts via SSH, you don't need tentacles to manage Linux hosts.