How to allow specific IP access in Nginx?

Firewall/Ip blocking HELP?

• I use Cain and able to route my WIFI to my laptop to my xbox from this i can gain the ip's im playing with online. what i need to know is there a firewall that will allow me to add safe ip's e.g. my friends and then to block all other incoming ip connections e.g. people online trying to join my game.BTW i have a anti virus/firewall-McAfee that kinda does this it allows me to block and add safe ip's but when i do a security lock down-block all ip's it blocks internet access to cain and able therefore it doesn't work If anyone knows a firewall that will allow me to block all incoming ip's while still connected to my friends ip's please answer it would be greatly appreciated

• Answer:

  Try Comodo Firewall http://personalfirewall.comodo.com/ its a good one. i am using it for last 5 years. but you have to learn how to use it. it can be used to execute virus infected files with out infecting the system ( i am not talking about sandboxing ) . you can add and Block IPs in this..