FileMaker Cloud is based on Linux. FMS runs on windows and mac so there is not really a comparison. At it's core it is a *completely* different product.
As for disabling TLS, you should be able to do so at the system level, here's the instructions page for Windows server:
It's probably not FileMaker that turned TLS 1.0 on, as this page indicates that it is turned on by default.
As always, heavily backup before making changes (registry, filemaker, etc..), in case of unforeseen side effects.
I should have been more clear. The client is running FileMaker Server on Mac which is Unix based like FileMaker Cloud so presumably there is a way at the system level to turn off TLS1.0 , 1.1.
Version of OSX matters then, as of Yosemite Apple didn’t even support anything past TLS 1.0
I believe the setting may be in that file but I’m not sure.
This isn’t a FileMaker question, so it may be best to google “OSX 10.x Disable TLS 1.0” and see what comes up on a technical site like stackoverflow.
It’s probably going to vary depending on which version of OSX and OSX Server you’re running.
The server is running macOS 10.12 Sierra and does not have the Server.app installed so the FileMaker Server is managing all the web services. In the /FileMaker Server/HTTPServer/conf/ directory there are several different configuration files that deal in some way with the SSL configuration. It's figuring out what to change there that is proving difficult. Google searching is not proving to be of much help which is why I posted here.
Try getting a text editor like Sublime that has the ability to search the contents of files.
In sublime, I would open that folder you mentioned, then search the open files for TLS.
When you find key=value pairs for the TLS values, google those key tags to see if that’s what you need, but I’d imagine it was straightforward.
I've looked through all those files nothing with TLS Key=value pairs like you might expect.
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This should help you here based on my experiences - you need to update the apache config file (generally located at /Library/FileMaker Server/HTTPServer/conf/extra/httpd-ssl.conf) to include 'SSLProtocol all -SSLv2 -SSLv3 -TLSv1’ - make sure you comment out the existing SSLProtocol and make a backup of the file first before making any changes.