Hi, As I mentioned in my previous mails, I use something like below to redirect connections from outside to my internal machine. # iptables -t nat -I PREROUTING -d <my_ext_ip> -p tcp --dport \ 8081 -j DNAT --to-destination 192.168.0.16:80 But I want only say 3 connections allowed at a time from outside. How do I do it in iptables? I am not getting the exact syntax. Thanks a lot in advance. With warm regards, -Payal