CanYouSeeMe.org – Open Port Check Tool
2011-05-02 at 02:46 am hugege
http://www.canyouseeme.org/
This page will serve as a free utility for remotely verifying a port is open or closed. It will be useful for users who wish to check to see if a server is running or a firewall or ISP is blocking certain ports.
Your IP:
What Port?
Common Ports
FTP 21
SSH 22
Telnet 23
SMTP 25
Web 80
Pop 3 110
IMAP 143
Other Applications
Remote Desktop 3389
PC Anywhere 5631