If you want to check whether your firewall or ISP is blocking certain ports (that you need to get things done) on your computer, then here is a simple solution for you. CanYouSeeMe is a website which provides you with a free utility to remotely test for open ports on your system.

When you are experiencing any connectivity issues like trouble accessing an FTP client or failures in sending email, this web application can be used to quickly check and troubleshoot the problem. All you need to do is enter the port id and click “Check” button to find out.

Key features:

• Test your computer for open ports behind firewalls.
• Troubleshoot connectivity issues with your internet connection or the computer itself.
• Free to use, no registration needed.
• Similar tools: ShieldsUP.

Check out Open Port Check Tool @ www.canyouseeme.org (via LifeHacker, by Srikanth AD from Techonaut)