Not sure which port they scan to allow them on the inside of the
firewall.
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
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org
> To subscribe, unsubscribe, or to change your mail settings:
> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
--
Harold Hartley
17632 N. 5th Pl
Phoenix, Arizona 85022
---------------------------------------------------
PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org
To subscribe, unsubscribe, or to change your mail settings:
https://lists.phxlinux.org/mailman/listinfo/plug-discuss
-- Harold Hartley 17632 N. 5th Pl Phoenix, Arizona 85022