TTLS isn't a thing.

You're argument about keep alive makes no sense. You're confusing the nginx documentation. 100 is the number of default connections it will hold open. 60 is the default timeout. Also it's sent as an HTTP response to the client in the headers...

Here you need to read up: https://nginx.org/en/docs/http/ngx_http_core_module.html#kee...

The timeout only matters if you're not making requests. Setting a low keep alive will actually result in more DNS requests...doh

Next you're going to tell me you only write blocking code and use a thread per connection...

I guess you haven't created many 10k concurrent app servers.