Dnia 20.04.2026 o godz. 14:10:19 Michael Tokarev via Postfix-users pisze:
> This is roskomnadzor's censorship and ruining the internet in a single
> country.  They block certain https patterns in a hope to block telegram
> and vpns which tries to act "like" regular https, and they block certain
> protocols for certain addresses completely.
> 
> It's rather interesting you haven't faced this earlier.  A lot of places
> doesn't work from ru netspace even if the resource itself isn't/shouldn't
> be blocked directly.  For example, wget https doesn't work in many places
> because it "looks like" telegram mtproxy (or, rather, it does not look
> like a regular well-known "whitelisted" browser), I can't git push to
> gitlab (for the same reason), etc.

They actually do blocking of IPs/protocols ? It's off topic for this list
(so you may respond privately if you prefer), but do you happen to have any
information how they do it? Is it one HUGE border firewall that filters
all traffic coming into/out of Russia, or do they enforce particular ISPs to
put blocks on their routers/firewalls?

Here in Poland, when the government tries to block some sites (often because
they claim it's "Russian propaganda" ;), which of course is far from truth -
the funny thing is that for some time website of one of the oldest Polish
newspapers was blocked under that pretense - while you could still buy the
actual paper ;)), they do it on DNS level - they just force all major ISPs
to block that domain on their DNS servers - technically, they return
"0.0.0.0" or something similar instead of the actual IP address. So this is
easy to work around if you know the actual IP address (or if you just run
your own DNS server - as you should when running Postfix, to not be
completely off-topic ;)).
-- 
Regards,
   Jaroslaw Rafa
   [email protected]
--
"In a million years, when kids go to school, they're gonna know: once there
was a Hushpuppy, and she lived with her daddy in the Bathtub."
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