Date: Thu, 27 Feb 2020 10:31:59 +0100 From: Kurt Jaeger <pi@freebsd.org> To: "Herbert J. Skuhra" <herbert@gojira.at> Cc: current@freebsd.org, Michael Butler <imb@protected-networks.net> Subject: Re: lame reverse DNS? Message-ID: <20200227093159.GS37073@home.opsec.eu> In-Reply-To: <8736axm50b.wl-herbert@gojira.at> References: <db42c2a5-f42e-ee4a-5cf8-0136e0867105@protected-networks.net> <8736axm50b.wl-herbert@gojira.at>
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Hi! > The problem has been resolved but I still sometimes see "connect from > unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131 > connections). Local unbound issue? That IPv6 has a valid reverse DNS record, so please try to investigate. Something like the output from: dig +trace -t ptr 2.0.0.0.9.1.0.0.0.0.0.0.0.0.0.0.c.6.0.6.1.0.0.0.1.c.1.0.0.1.6.2.ip6.arpa -- pi@opsec.eu +49 171 3101372 Now what ?
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