mainSavannah Administration - Support: sr #108704, Account access problems

 
 

sr #108704: Account access problems

Submitter:  Assaf Gordon <agn>
Submitted:  Fri 12 Dec 2014 08:30:51 PM UTC
   
 
Category:  Savannah website Priority:  5 - Normal
Severity:  3 - Normal Status:  In Progress
Privacy:  Public Assigned to:  agn
Operating System:  None Open/Closed:  Closed
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Sat 18 Feb 2017 03:22:42 AM UTC, comment #5: 

(triaging old savannah tickets)

Bob Proulx wrote:

> It appears to me that the IPv6 address in exim on frontend was
> attempted to have been disabled at some previous time.


In the two years since this ticket was created,
we've switched from exim4 to postfix,
and to completely new servers with new IP addresses.

I'm closing this ticket, and if problems re-appear, we can re-open it.

-assaf

Assaf Gordon <agn>
Site Administrator
Fri 12 Dec 2014 10:15:57 PM UTC, comment #4: 


> Therefore I don't know why exim is still connecting out using an IPv4 address.


Typo.  s/IPv4/IPv6/.  I don't know why exim is still connecting out using an IPv6 address.

Bob Proulx <rwp>
Site Administrator
Fri 12 Dec 2014 10:09:36 PM UTC, comment #3: 

It appears to me that the IPv6 address in exim on frontend was attempted to have been disabled at some previous time.  The configuration shows:

/etc/exim4/update-exim4.conf.conf:dc_local_interfaces='127.0.0.1'

Therefore I don't know why exim is still connecting out using an IPv4 address.

Bob Proulx <rwp>
Site Administrator
Fri 12 Dec 2014 09:56:40 PM UTC, comment #2: 

The previous comment posted to this ticket generated the following email which was delivered to the three of us.

2014-12-12 21:37:43 1XzXuA-0001Vx-Nz <= -email is unavailable- U=www-data P=local S=1881 id=20141212-143742.sv744.6018@savannah.gnu.org
2014-12-12 21:37:44 1XzXuA-0001Vx-Nz SMTP error from remote mail server after RCPT TO:<eatdirt@mageia.org>: host alamut.mageia.org [2a02:2178:2:7::2]: 450 4.7.1 Client host rejected: cannot find your hostname, [2001:4830:134:6::a]
2014-12-12 21:37:44 1XzXuA-0001Vx-Nz => -email is unavailable- R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [2607:f8b0:400d:c03::1a] X=TLS1.0:RSA_ARCFOUR_SHA1:16 DN="C=US,ST=California,L=Mountain View,O=Google Inc,CN=mx.google.com"
2014-12-12 21:37:45 1XzXuA-0001Vx-Nz => -email is unavailable- R=dnslookup T=remote_smtp H=alamut.mageia.org [212.85.158.146]
2014-12-12 21:37:45 1XzXuA-0001Vx-Nz => -email is unavailable- R=dnslookup T=remote_smtp H=eggs.gnu.org [2001:4830:134:3::10]
2014-12-12 21:37:46 1XzXuA-0001Vx-Nz => -email is unavailable- R=dnslookup T=remote_smtp H=mail.proulx.com [216.17.153.58] X=TLS1.0:RSA_AES_256_CBC_SHA1:32 DN="CN=joseki.proulx.com"
2014-12-12 21:37:46 1XzXuA-0001Vx-Nz Completed

The above shows a transfer to google.com using IPv6 to gmail-smtp-in.l.google.com [2607:f8b0:400d:c03::1a].  But the IPv6 transfer to alamut.mageia.org [2a02:2178:2:7::2] was rejected.  The transfer to my server mail.proulx.com [216.17.153.58] was successful.

I think the problem lies with the lack of reverse dns for the IPv6 address for frontend.

Bob Proulx <rwp>
Site Administrator
Fri 12 Dec 2014 09:37:42 PM UTC, comment #1: 

I think this is an IPv6 problem.  The addresses quoted in the log messages are IPv6 addresses.  The remote host alamut.mageia.org rejected the message due to "cannot find your hostname, [2001:4830:134:6::a]" quoting the IPv6 address of frontend.

At this moment I am not sure exactly sure where the fault lies but I will look into it further to try to figure it out.

Notes: A 450 is a temporary rejection suitable for DNS failures which may be temporary failures.  If it works before the message times out then the delivery may be completed.

Bob Proulx <rwp>
Site Administrator
Fri 12 Dec 2014 08:30:51 PM UTC, original submission:  

Hello Chris,

I'm starting a new support ticket, continuing your post at:
  https://savannah.gnu.org/support/?108696#comment5
because this is a new issue, and the other ticket has been resolved.

First,
I noticed you were able to submit a new bug:
 https://savannah.nongnu.org/bugs/?43806
so I assume you've managed to login eventually.

In general,
If you do not remember your user name, you can always search in the left-side bar, simply enter "denice" and select "people" (instead of the default "projects") and click "search".
Your user account will be shown:
   https://savannah.gnu.org/users/dirteat

Specifically, checking the email server log for your account, the following errors are shown:
====
2014-12-12 13:44:41 1XzQWO-0006vj-IW SMTP error from remote mail server after RCPT TO:<eatdirt@mageia.org>: host alamut.mageia.org [2a02:2178:2:7::2]: 450 4.7.1 Client host rejected: cannot find your hostname, [2001:4830:134:6::a]
2014-12-12 13:44:42 1XzQWO-0006vj-IW => -email is unavailable- R=dnslookup T=remote_smtp H=alamut.mageia.org [212.85.158.146]
2014-12-12 13:54:16 1XzQfd-0007B8-M6 SMTP error from remote mail server after RCPT TO:<eatdirt@mageia.org>: host alamut.mageia.org [2a02:2178:2:7::2]: 450 4.7.1 Client host rejected: cannot find your hostname, [2001:4830:134:6::a]
2014-12-12 13:54:17 1XzQfd-0007B8-M6 => -email is unavailable- R=dnslookup T=remote_smtp H=alamut.mageia.org [212.85.158.146]
2014-12-12 14:10:06 1XzQuz-0007cG-BX SMTP error from remote mail server after RCPT TO:<eatdirt@mageia.org>: host alamut.mageia.org [2a02:2178:2:7::2]: 450 4.7.1 Client host rejected: cannot find your hostname, [2001:4830:134:6::a]
2014-12-12 14:10:06 1XzQuz-0007cG-BX => -email is unavailable- R=dnslookup T=remote_smtp H=alamut.mageia.org [212.85.158.146]
2014-12-12 15:59:53 1XzSdE-0001pQ-S7 SMTP error from remote mail server after RCPT TO:<eatdirt@mageia.org>: host alamut.mageia.org [2a02:2178:2:7::2]: 450 4.7.1 Client host rejected: cannot find your hostname, [2001:4830:134:6::a]
2014-12-12 15:59:54 1XzSdE-0001pQ-S7 => -email is unavailable- R=dnslookup T=remote_smtp H=alamut.mageia.org [212.85.158.146]
====

My SMTP understanding is limited, but could this error "450 4.7.1 Client host rejected" indicate an issue on your end's mail server?

Regards,
 - Assaf

Assaf Gordon <agn>
Site Administrator

 

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