Script to display whois connected to what

info-sec.sh

#!/bin/bash

title () 
{
  local msg="$@"
  echo 
  echo "========================"
  echo "  $msg"
  echo "========================"
}


title "Current connections (who)"
who

title "List listening services (netstat -l)"
netstat -lntpu

title "Current SSH connections on port 22"
netstat -taupen | sort -k 7 | grep ':22[^0-9]'

#title "Current Proxmox API connection on port 8006"
#netstat -taupen | sort -k 7 | grep ':8006[^0-9]'