disable ports

[sirlance]

Hello

I need to run some website/ftp tests. To do so, I need to disable port 21 & 20 (FTP up and down). How do I disable these ports on a system. For obvious reasons, I don't want to do this at my gateway.

Thanks

 

[Wirdo]

You need a firewall program like zone alarm. Or if you know your ports well enough, you go to tcp/ip settings in local connection properties click advacned, options, tcp/ip filtering. From there you can specify which ports you will allow to be open. But, you can get a free version of zone alarm and just block the specified ports if your not sure what ports you need and dont.

 

[cdogg]

I don't think the free version of Zonealarm allows you to specify which ports to block/allow (though I could be wrong). It's my understanding that you need Zonealarm Pro to do that... ~cdogg

"The secret to creativity is knowing how to hide your sources."
- A. Einstein

 

[ashpp]

I think by default ZoneAlarm standard will block all ports, and then unblock as you request.

Don't quote me on that!

Ash.

 

[vtshep1]

I have zone alarm, the trial version, and I probed my ports with the tool provided at

https://grc.com/x/ne.dll?bh0bkyd2

and it closed teh ports that you want.

 

[cdogg]

Zonelalarm standard will block all ports to begin with. Then, as a program tries to connect to the internet, you can choose to always allow, always ignore, or have it ask you again each time. However, you cannot specify which ports to allow. It is only done by program/app.

The Pro version gives you the ability to actually configure port numbers... ~cdogg

"The secret to creativity is knowing how to hide your sources."
- A. Einstein