Finding IPs connected to your web server [classic]

Get all IPs connected to your web server

netstat -ntu | sed -e 's/::ffff://g' | awk '{print $5}' | cut -d : -f1 | sort -n

Get all unique IPs connected to your web server

netstat -ntu | sed -e 's/::ffff://g' | awk '{print $5}' | cut -d : -f1 | sort | uniq -c | sort -n