It is a simple n Basic Perl tool that helps you check the activity of a remote Host making a connection through TCP to the port you want, checking if it is ok & the response time... Made for educational purposes, This can be util to check if ur Firewall Rules are made correctly or to check ur Port Forwading!

这个小工具可以实现远程端口批量映射，解决实际开发中需要SSH TUNNEL才能访问的网络环境