It turns out that my caring ISP really has a free firewall service
which is enabled by default.
I asked my ISP to disable it completely and now everything is OK.
Thank you!
29.11.2020 14:30, Stuart Henderson пишет:
> On 2020-11-29, Stuart Henderson <stu@spacehopper.org> wrote:
>> On 2020-11-29, Родин Максим <a23s4a2008@yandex.ru> wrote:
>>> The problem is that only port 80 seems to be open from the outside.
>>> I used several online port scanners to check this.
>>> All of them tell:
>>> port 80 OPEN
>>> port 443 CLOSED
>>
>> Could it be blocked by your ISP? Do you receive packets on your external
>> interface at all when you test port 443?
>>
>>
>>
>
> Or...if this is behind nat, do you need to add a port-forwarding on your ISP router?
>
--
С уважением,
Родин Максим
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