[tor-relays] update obfs4proxy if you run a bridge

[Spydar007]

On 21 Mar 2022, 17:46 +0000, meskio <meskio at torproject.org>, wrote:
> Hello,
>
> TL;RD:
> if you are a bridge operator please update obfs4proxy to a version>=0.0.12.
Thanks, done.

Worth noting I had to adjust (on Debian) /etc/apparmor.d/abstractions/tor to contain:

/sys/kernel/mm/transparent_hugepage/hpage_pmd_size r,

To prevent the error:

apparmor="DENIED" operation="open" profile="system_tor" name="/sys/kernel/mm/transparent_hugepage/hpage_pmd_size

per [1].

And be sure to setcap the obfs4proxy binary again if running on a port<1024, as well as restart Tor after updating.

Cheers.

[1]: https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1839505.html
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