How to check active connections on web server
Now this isn’t the most accurate method out there but it is by far the easiest.
Open up your console and type netstat -an | grep :443 | grep ESTABLISHED | wc -l
or even better, for a running total
watch "netstat -an | grep :443 | grep ESTABLISHED | wc -l"
Just to add one more not without getting too technical
netstat -an | grep :443 | grep -v TIME_WAIT | wc -l
should give you all connections that the local server hasn’t closed, depening on your application, this may be more accurate