My domain is: www.klubkangaroo.com
My web server is (include version): Ruby On rails ( nginx )
The operating system my web server runs on is (include version): Ubuntu 16.04
I can login to a root shell on my machine (yes or no, or I don’t know): yes
when i try to connect to api on my server on iOS on a certain carrier i can’t and got this error
An SSL error has occurred and a secure connection to the server cannot be made
Your server has a secure connection and is fine. I would try making sure that your API is using the right SSL files.
You are also using weak DH parameters, that could also be why.
How can i make sure that my apis using the right ssl file ?!
how to add DH params.
one note, app is working fine on android & some iOS devices. will the above help ?!
your configurations are fine
a good tool to check compatibility is here: https://www.ssllabs.com/ssltest/analyze.html?d=www.klubkangaroo.com&hideResults=on
I am going to narrow this down to a device issue as most of the common apple clients are supported with your configuration.
As @Aidan said you should review your DH configurations. A guide to DH parameters is here: https://weakdh.org/sysadmin.html
READ CAREFULLY and test before deploying in production
the issue was with nginx configuration , fixing by adding the following code to nginx.config
Thank you for showing him, I was extremely busy and forgot to respond.
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