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Date:      Fri, 27 Nov 2015 20:49:32 -0500
From:      Allan Jude <allanjude@freebsd.org>
To:        freebsd-jail@freebsd.org
Subject:   Re: Issue with running 'pkg update' from jails with "net.inet.tcp.blackhole=2" sysctl.
Message-ID:  <5659082C.7030805@freebsd.org>
In-Reply-To: <CADLW%2Bu01U3KaOX11cphg0eFv8Hh-PHHcs7kEkV_ONnj=-Tx7yg@mail.gmail.com>
References:  <CADLW%2Bu01U3KaOX11cphg0eFv8Hh-PHHcs7kEkV_ONnj=-Tx7yg@mail.gmail.com>

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On 2015-11-27 15:25, Goran Tep=C5=A1i=C4=87 wrote:
> Hi, I just discovered this little sysctl tweak (*net.inet.tcp.blackhole=
=3D2*)
> which from what I understood can help hiding host from network scanners=
 or
> at least slow them down.
>=20
> Everything works just fine except when updating jail (*running pkg
> update / upgrade*) off the host's Nginx instance serving Poudriere-buil=
t
> packages and with this sysctl set, update/upgrade command just hangs, n=
ot
> sure why.
>=20
> Anyone having same issue?
> _______________________________________________
> freebsd-jail@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-jail
> To unsubscribe, send any mail to "freebsd-jail-unsubscribe@freebsd.org"=

>=20

If it is connecting to a port that is not open, instead of an error, it
will have to wait 2+ minutes for the connection to timeout.

I am not sure what is happening, but i imagine if you leave it long
enough, something will happen.

--=20
Allan Jude


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