Connection Limit and Port Flooding Settings?

[consultant]

Does anyone use the connection limit protection or port flooding settings that doesn't have network level DDOS protection?

What would be typical reasonable settings for a server that is just running website applications that has maybe max 40 website users at any time plus bot scraping traffic and virtually no FTP and maybe one SSH session open at a time? Nothing else such as external MySQL connections. There is some mail traffic, mostly all outbound from server applications as all the mail for the domains being hosted on 3rd party providers.

I ran ss a few times and had like 12 connections on port 443 (SSL web connection) and my one SSH session and everything else was really high port numbers between localhost (127.0.0.0) local and per addresses.