About open port

Hi,

as I am behind a firewall/routeur (hardware then) my only port open is the one used by my p2p software...

So is it safe letting this port opened ? Or can someone use this open port to send me malicious stuff ?

Thanks

 

If you use p2p, you can't close the port and it's normal to appear "open" from the outside.

As far as i know,you are safe unless the p2p programme you use has a vulnerability that can be exploited remotely.

 

I can, because I'm behind a firewall/routeur hardware, so if I do not bind the port to my computer, no port is opened.

But then I am low Id, and I find less sources, as I cannot download from people behind a firewall.

So the question is not if I can, but if it is needed.

And my exact question was : if port xxx is binded to my computer, cannot a hacker use this port (even without a software at the other side) to send virus or trojans to my computer ?

I do not know what a hacker can do with an open port.

Thanks

 

If you want your PC to act as a P2P server you can't close the port, obviously.

However, if you use P2P only as a client (eg. not allowing connections requested externally) then it's more safe to stealth that port (by a software firewall) and to allow your P2P application to act only as a client on that port.

An open port accepting all packets from the outside is quite dangerous, you should check vulnerabilities of the PSP software and vulnerabilities of your OS. Both of them should be patched.