I recently installed Comodo Firewall and had to search the web to find instructions on how to get uTorrent to work properly. It works perfectly but I have a security question.
Here’s what I did to make it work:
In the ‘Network Monitor’ panel I added the following rule.
In ‘General’: Action = Allow, Protocol = TCP or UDP, Direction = In
In ‘Source IP’ tab: Source IP = Any
In ‘Destination IP’ tab: Destination IP = Any
In ‘Source Port’ tab: Source Port = Any
In ‘Destination Port’ tab: A Single Port = The Port Number Used By uTorrent.
Then I moved the rule up above the ‘Block & Log’ rule.
As I said uTorrent now works fine with these settings. Are there any security considerations that I should know about given I’m allowing any IP to connect to the destination port that uTorrent uses? Note that I only run uTorrent from time to time (not all that regulary) and I’ve changed the port number that uTorrent uses by default to something a long way away from the default port number.
Many thanks for any info. and advise. Regards, etc…
If the port is not passing traffic, that is, being in use by uTorrent, then the port should automatically be closed by the firewall and you would most likely be safe. Now if someone decides to do a port scan and tries to get in that port, and has the knowledge and ability to hack you, then they will be able to because you have allowed all IP addresses access to that port into your PC.
I would consider that a security risk since you are asking for my opinion.
Now if you change the ALLOW to BLOCK when not in use then the port cannot be used at all for any inbound traffic for anything until you change it back to ALLOW. A very simple solution to insure that your PC is protected.
Many thanks Jasper that explains it very nicely. Cheers for taking the time to give me the info. I will follow your advise, changing from ‘block’ to ‘allow’ only when uTorrent is running. Thanks again.