Configuring Setroubleshhot

Arthur Dent misc.lists at blueyonder.co.uk
Mon Oct 1 10:28:46 UTC 2012


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> On 09/29/2012 02:17 PM, Arthur Dent wrote:
>> Hello all,
>>
>> I have just had a weird email indicating that my server is spamming.
>> This
>> resulted from my attempt to get setroubleshoot to send email
>> notifications.
>>
>> I don't really understand how this happened, and I keep looking at the
>> headers wondering exactly what went on...
>>
>> This is the message I received:
>> ================================8<=====================================
>> The
>> original message was received at Sat, 29 Sep 2012 17:18:17 +0100 from
>> localhost [127.0.0.1] with id q8TGIHxg001451
>>
>> ----- The following addresses had permanent fatal errors -----
>> <root at localhost.localdomain> (reason: 554 5.7.1 Service unavailable;
>> Client
>> host [82.43.145.228] blocked using ix.dnsbl.manitu.net; Your e...2
>> 13:01:07
>> +0200. Your admin should visit
>> http://www.dnsbl.manitu.net/lookup.php?value=82.43.145.228)
>>
>> ----- Transcript of session follows ----- ... while talking to
>> el-tio.edelhost.de.:
>>>>> DATA
>> <<< 554 5.7.1 Service unavailable; Client host [82.43.145.228] blocked
>> using ix.dnsbl.manitu.net; Your e-mail service was detected by
>> el-tio.edelhost.de (NiX Spam) as spamming at Sat, 29 Sep 2012 13:01:07
>> +0200. Your admin should visit
>> http://www.dnsbl.manitu.net/lookup.php?value=82.43.145.228 554 5.0.0
>> Service unavailable <<< 554 5.5.1 Error: no valid recipients 550 5.1.1
>> <SELinux_Troubleshoot at mydomain.org>... User unknown
>> ================================8<=====================================
>>
>> These are the headers for that email. As far as I can tell the email
>> never
>> left my server.
>> ================================8<=====================================
>> Return-path: <MAILER-DAEMON at mydomain.org> X-spam-checker-version:
>> SpamAssassin 3.3.2 (2011-06-06) on mydomain.org X-spam-level:
>> X-spam-status: No, score=-0.3 required=5.0 tests=BAYES_00,NO_RELAYS,
>> T_TVD_MIME_NO_HEADERS,URIBL_WS_SURBL autolearn=no version=3.3.2
>> Received:
>> from localhost (localhost) by mydomain.org (8.14.5/8.14.5) id
>> q8TGIJxg001453; Sat, 29 Sep 2012 17:18:19 +0100 Date: Sat, 29 Sep 2012
>> 17:18:19 +0100 From: Mail Delivery Subsystem
>> <MAILER-DAEMON at mydomain.org>
>> Message-id: <201209291618.q8TGIJxg001453 at mydomain.org> To:
>> postmaster at mydomain.org Mime-version: 1.0 Content-type:
>> multipart/report;
>> report-type=delivery-status;
>> boundary="q8TGIJxg001453.1348935499/mydomain.org" Subject: Postmaster
>> notify: see transcript for details Auto-submitted: auto-generated
>> (postmaster-notification) X-evolution-source:
>> 1292576305.15554.21 at localhost.localdomain
>> ================================8<=====================================
>>
>> This was attached. I do not understand how this came about:
>> ================================8<=====================================
>> Reporting-MTA: dns; mydomain.org Received-From-MTA: DNS; localhost
>> Arrival-Date: Sat, 29 Sep 2012 17:18:17 +0100
>>
>> Final-Recipient: RFC822; root at localhost.localdomain.org Action: failed
>> Status: 5.7.1 Remote-MTA: DNS; el-tio.edelhost.de Diagnostic-Code: SMTP;
>> 554 5.7.1 Service unavailable; Client host [82.43.145.228] blocked using
>> ix.dnsbl.manitu.net; Your e-mail service was detected by
>> el-tio.edelhost.de
>> (NiX Spam) as spamming at Sat, 29 Sep 2012 13:01:07 +0200. Your admin
>> should visit http://www.dnsbl.manitu.net/lookup.php?value=82.43.145.228
>> Last-Attempt-Date: Sat, 29 Sep 2012 17:18:19 +0100
>> ================================8<=====================================
>>
>> And the actual mail was a standard setroubleshoot report detailing an
>> AVC.
>>
>> I admit I probably do not have this set up right, but I don't know what
>> I
>> have done wrong.
>>
>> In /var/lib/setroubleshoot/email_alert_recipients I have simply:
>> root at localhost.localdomain       filter_type=after_first
>>
>> Note that there is no ".org" after that.
>>
>> I have not touched /etc/setroubleshoot/setroubleshoot.conf at all.
>>
>> What do I have to do to fix this?
>>
>> Thanks...
>>
>> Mark
>>
>>
>>
>> -- selinux mailing list selinux at lists.fedoraproject.org
>> https://admin.fedoraproject.org/mailman/listinfo/selinux
>>
> First thing I would do is check mail as root and try to send a mail
> message to
> root at localhost.localdomain

Thanks. I can't try that until I get home this evening (the sysadmin here
at work has blocked the ssh port I use).

However, what puzzles me is why the mail goes outside the network at all.
I'm sure that when I had this working previously (on F15) it was just a
system mail delivered directly.

I'm sure I've got something wrong in my setup but I can't see where I'm
going wrong.

This has actually caused a massive problem for me as I am now listed on
several blacklists and the mail I send from my account often disappears
into the ether - presumably because my correspondent's ISP take an
aggressive approach to using blacklists to block mail.

Once I have sorted this out I will have to ask how to get off these
blacklists!

Thanks

Mark






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