Are stealthed ports safer then closed ports?
I have been reading up a little on this topic. I use to think a computer's ports must be stealthed. But from the new information I am reading that is not necessarily the case?
I usually check my ports at GRC's Shields up. I have read that a few people think they guy that runs this website is just getting people paranoid for a profit.
When the ports are stealthed they do not respond at all to incoming requests. When they are closed they respond and say that the packet was rejected. If it is true stealth, according to the website above, then no one knows you computer is there. But if they come back as closed, can this be a security problem? For example can a hacker see a closed port and find a way to get into it?
I do understand that if someone scans my ports and they are closed then they may want to keep scanning to see if they can find an open one, (How likely could that be?) If it is true stealth then they won't know the computer is there, so that makes it safer?
I am currently using Suse 11.1 64 and PC-BSD 7.1.1 On Suse the ports are all stealthed but it does not come back as true stealth, the computer responds. On PC-BSD a few ports are stealthed but almost all of them show up as closed. None that I can tell are open on either OS.
(I mentioned in another post I was done duel booting. I should say that I am done duel booting with MS Windows. :) )