Ebay port scans your pc on every visit.

[Harold Hartley]

Firefox did away with fingerprinting as well as a few other browsers.

On 5/25/20 6:23 PM, der.hans via PLUG-discuss wrote:
> Am 25. May, 2020 schwätzte Snyder, Alexander J via PLUG-discuss so:
>
> moin moin Alexander,
>
>> 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?
>
> Yeah, they'd certainly be sending whatever information they find as a
> ruquest to the server on port 443. It looks like normal web traffic
> because it is normal web traffic.
>
> There's also html5 gathering info.
>
> https://en.wikipedia.org/wiki/Canvas_fingerprinting
>
> Here's a fun one. At least this one's Open Source ...
>
> https://en.wikipedia.org/wiki/Evercookie
>
> ciao,
>
> der.hans
>
>> Thanks,
>> Alexander
>>
>> Sent from my Galaxy S10+
>>
>> On Mon, May 25, 2020, 17:12 Harold Hartley via PLUG-discuss <
>> plug-discuss at 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 at 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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>>>
>>> -- 
>>> Harold Hartley
>>> 17632 N. 5th Pl
>>> Phoenix, Arizona 85022
>>>
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>>
>
>
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-- 
Harold Hartley
17632 N. 5th Pl
Phoenix, Arizona 85022

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