The only outbound ports open without concern are 123(UDP), 53(UDP), 80(TCP), and 443(TCP). All other ports are blocked, outbound to the web, on my system.

If I read this, this would go around my guards, as they are "piggybacking" on 443 in and out, right?

Thanks,
Alexander

Sent from my Galaxy S10+

On Mon, May 25, 2020, 17:12 Harold Hartley via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
I'm not sure if anything can be done to stop port scanning of ports.

I'm really not having a big concern since I have 2 firewalls anyway. I
have a firewall on one device and a firewall on my computer. So the only
ports they will see is the one on my first device and not the computer.
At least that's my theory.

On 5/25/20 1:17 AM, Steve Litt via PLUG-discuss wrote:
> On Sun, 24 May 2020 20:52:43 -0700
> Harold Hartley via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
>
>> But I close up ports that doesn't need to be
>> open in order to make my system safe. You'd be surprised at how many
>> ports are open that can leave a system open for attacks.
> When you say "close up ports", do you mean make sure there's no
> executable listening at that port, firewalling that port so nothing can
> come in or out, or something else?
>   
> SteveT
>
> Steve Litt
> May 2020 featured book: Troubleshooting Techniques
>       of the Successful Technologist
> http://www.troubleshooters.com/techniques
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