I suspect this may not be possible using UFW,however I just have to ask:is it possible to prevent some specific IP addresses from connecting to some applications only,but still allow them in a normal web browser?
Here's an example:I've seen Thunderbird sometimes connecting to an handful of IP addresses on port 80 (on the server side),probably nothing malicious since they appear to be legitimate websites that I normally visit in my web browser,but still:what if I wanted to access those IPs only from my web browser and never have them connecting to my email client?
I reckon this could be for a number of reasons,maybe web feeds on those sites,or email alerts,or who knows what other feature,but what can I do to prevent this?
Obviously I can't simply block traffic to and from port 80 for those websites,or else I won't be able to access them with a web browser:so here's my question,is there such a fine grained control with UFW to accomplish what I'm after?
I would lean towards no,in that case is there some other way to do that with iptables?
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