Is this really an attack under port 443?

| CORE 4 / 8 GB |
| OS type and version | DEBIAN 10|
| Virtualmin version | LAST |


I have a lot of requests on my 443 port.
I can do this command: netstat -t -n | grep -c “:443.*ESTABLISHED”
I get between 30 and 70
Is this normal?

443 is HTTPS - if you have an SSL cert and port 443 is open, then I’d expect you to have traffic\connections on it.

Yes indeed.
Does this mean that the number indicated is the number of connections (visitors) ?

It would be indicative - i.e. the ballpark number.