Mailing List Archive

Please fix reverse DNS for cisco-nsp
Since today I keep receiving all the mails from the list in the Junk
folder, please fix the mail server's reverse dns.

Thanks,
Niccolò
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Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
On Thu, May 10, 2012 at 04:46:36PM +0200, Niccolò Belli wrote:
> Since today I keep receiving all the mails from the list in the Junk
> folder, please fix the mail server's reverse dns.

Looks fine to me. Zone hasn't changed in a while, either.:

msa@pegasus:/home/msa (56)$ host -t soa nether.net
nether.net has SOA record puck.nether.net. jared.puck.nether.net.
2011120503 28800 14400 2419200 86400
msa@pegasus:/home/msa (57)$ host -t ns nether.net
nether.net name server puck.nether.net.
nether.net name server anyns.pch.net.
nether.net name server thorn.blackrose.org.
msa@pegasus:/home/msa (44)$ host puck.nether.net anyns.pch.net
Using domain server:
Name: anyns.pch.net
Address: 204.61.216.4#53
Aliases:

puck.nether.net has address 204.42.254.5
puck.nether.net has IPv6 address 2001:418:3f4::5
puck.nether.net mail is handled by 0 puck.nether.net.
puck.nether.net mail is handled by 10 mx.nether.net.

msa@pegasus:/home/msa (48)$ host -t soa 254.42.204.in-addr.arpa.
254.42.204.in-addr.arpa has SOA record puck.nether.net.
jared.puck.nether.net. 2011120500 18000 6000 604800 36000
msa@pegasus:/home/msa (49)$ host -t ns 254.42.204.in-addr.arpa
254.42.204.in-addr.arpa name server ns1.pch.net.
254.42.204.in-addr.arpa name server puck.nether.net.
254.42.204.in-addr.arpa name server thorn.blackrose.org.
msa@pegasus:/home/msa (50)$ host -t ptr 5.254.42.204.in-addr.arpa
ns1.pch.net
Using domain server:
Name: ns1.pch.net
Address: 206.220.231.1#53
Aliases:

5.254.42.204.in-addr.arpa domain name pointer puck.nether.net.

msa@pegasus:/home/msa (52)$ host -t soa
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa.
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa has SOA record puck.nether.net.
jared.puck.nether.net. 201102070 18000 6000 604800 36000
msa@pegasus:/home/msa (53)$ host -t ns 4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa.
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa name server thorn.blackrose.org.
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa name server puck.nether.net.
msa@pegasus:/home/msa (54)$ 8.1.4.0.1.0.0.2.ip6.arpa.
thorn.blackrose.org. <
Using domain server:
Name: thorn.blackrose.org.
Address: 204.42.254.7#53
Aliases:

5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa
domain name pointer puck.nether.net.

--msa
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Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
If you have details of a problem, please forward them over. Thanks!

Jared Mauch

On May 10, 2012, at 10:46 AM, Niccolò Belli <darkbasic@linuxsystems.it> wrote:

> Since today I keep receiving all the mails from the list in the Junk folder, please fix the mail server's reverse dns.
>
> Thanks,
> Niccolò
> _______________________________________________
> cisco-nsp mailing list cisco-nsp@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/

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Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
Jared Mauch <jared@puck.nether.net> writes:

> If you have details of a problem, please forward them over. Thanks!

There's at least one bad referral in the IPv6 reverse lookup path:

bjorn@canardo:~$ dig -x 2001:418:3f4::5 +trace

; <<>> DiG 9.7.3 <<>> -x 2001:418:3f4::5 +trace
;; global options: +cmd
. 517382 IN NS h.root-servers.net.
. 517382 IN NS c.root-servers.net.
. 517382 IN NS b.root-servers.net.
. 517382 IN NS l.root-servers.net.
. 517382 IN NS e.root-servers.net.
. 517382 IN NS f.root-servers.net.
. 517382 IN NS a.root-servers.net.
. 517382 IN NS i.root-servers.net.
. 517382 IN NS m.root-servers.net.
. 517382 IN NS d.root-servers.net.
. 517382 IN NS j.root-servers.net.
. 517382 IN NS g.root-servers.net.
. 517382 IN NS k.root-servers.net.
;; Received 272 bytes from 127.0.0.1#53(127.0.0.1) in 0 ms

ip6.arpa. 172800 IN NS a.ip6-servers.arpa.
ip6.arpa. 172800 IN NS b.ip6-servers.arpa.
ip6.arpa. 172800 IN NS c.ip6-servers.arpa.
ip6.arpa. 172800 IN NS d.ip6-servers.arpa.
ip6.arpa. 172800 IN NS e.ip6-servers.arpa.
ip6.arpa. 172800 IN NS f.ip6-servers.arpa.
;; Received 470 bytes from 192.203.230.10#53(e.root-servers.net) in 55 ms

4.0.1.0.0.2.ip6.arpa. 86400 IN NS u.arin.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS v.arin.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS w.arin.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS x.arin.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS z.arin.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS ns2.lacnic.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS sec1.apnic.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS sec1.authdns.ripe.net.
4.0.1.0.0.2.ip6.arpa. 86400 IN NS sec3.apnic.net.
;; Received 279 bytes from 2001:500:86::86#53(b.ip6-servers.arpa) in 183 ms

8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS auth23.ns.gin.ntt.net.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS auth25.ns.gin.ntt.net.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS auth22.ns.gin.ntt.net.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS auth21.ns.gin.ntt.net.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS auth24.ns.gin.ntt.net.
;; Received 209 bytes from 2001:470:1a::2#53(w.arin.net) in 52 ms

4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa. 14400 IN NS ns1.pch.net.
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa. 14400 IN NS thorn.blackrose.org.
4.f.3.0.8.1.4.0.1.0.0.2.ip6.arpa. 14400 IN NS puck.nether.net.
;; Received 174 bytes from 2001:418:0:700b::202#53(auth23.ns.gin.ntt.net) in 127 ms

8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS AUTH22.NS.GIN.NTT.NET.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS AUTH24.NS.GIN.NTT.NET.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS AUTH25.NS.GIN.NTT.NET.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS AUTH21.NS.GIN.NTT.NET.
8.1.4.0.1.0.0.2.ip6.arpa. 10800 IN NS AUTH23.NS.GIN.NTT.NET.
;; BAD REFERRAL
;; Received 209 bytes from 206.220.231.1#53(ns1.pch.net) in 178 ms



Bjørn

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Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
Il 10/05/2012 20:56, Bjørn Mork ha scritto:
> There's at least one bad referral in the IPv6 reverse lookup path:

That was the problem I think.

Niccolò
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Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
I attached one of the e-mails I found in the spam folder with full headers.

I see:
> Received: from puck.nether.net (unknown [IPv6:2001:418:3f4::5])

but:

laptop ~ # dig -x 2001:418:3f4::5 +short
puck.nether.net.
laptop ~ # dig AAAA puck.nether.net +short
2001:418:3f4::5

Anyway I don't have any problem anymore, I received no more than 10
e-emails from the list in the spam folder because of the dns.

Niccolò
Re: Please fix reverse DNS for cisco-nsp [ In reply to ]
I'll look at this and respond to you off-list.

Thanks for those that have looked at this.

- Jared

On May 10, 2012, at 4:07 PM, Niccolò Belli wrote:

> I attached one of the e-mails I found in the spam folder with full headers.
>
> I see:
> > Received: from puck.nether.net (unknown [IPv6:2001:418:3f4::5])
>
> but:
>
> laptop ~ # dig -x 2001:418:3f4::5 +short
> puck.nether.net.
> laptop ~ # dig AAAA puck.nether.net +short
> 2001:418:3f4::5
>
> Anyway I don't have any problem anymore, I received no more than 10 e-emails from the list in the spam folder because of the dns.
>
> Niccolò
> <mail_with_headers.txt>_______________________________________________
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> archive at http://puck.nether.net/pipermail/cisco-nsp/


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