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Old 12-25-2009, 11:06 AM   #1
northpoint
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Registered: Dec 2009
Location: Quebec Laurentians
Distribution: Fedora
Posts: 5

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Arrow Trying to Understand , mail system messages to root


Greetings and Salutations !

and Happy Holidays.


I have questions concerning receiving messages through mail and cron for root.

I've tried:
Code:
 # mail -u root - No mail for root
Code:
cat /var/log/spooler
has no output


Code:
# cat /var/log/maillog
mailog - displays
Code:
sendmail[3508]: nBP8S391003508: from=root, size=2266, class=0, nrcpts=1, msgid=<200912250828.nBP8S391003508@my.server>, relay=root@localhost
What does this mean?


I understand it has nothing to do with running mail server, but receiving system messages.
Is there another way to see these messages?
which ones can i disable that aren't necessary?
And I found a script for Arno's iptables firewall logs , that is supposed to mail root the out put
script :
Code:
  #! /bin/sh
   #
   #  /etc/cron.daily/fwfilter - Arno's iptables-firewall activity
   #  monitoring script.
   # 

   FWFILTER=/path/to/arno's/fwfilter
   FWLOG=/var/log/firewall
   DAY="$(/bin/date '+%b %e' --date=yesterday)"
   
   if [ -f "${FWFILTER}" -a -f "${FWLOG}" ]; then
      /bin/grep "${DAY}" ${FWLOG} | ${FWFILTER}
   fi

Thanks for any feedback
 
Old 12-26-2009, 07:25 AM   #2
business_kid
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Registered: Jan 2006
Location: Ireland
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No comment on the script. /var/spool/mail/root is usually root's mailbox, and should be perms 0600.
Many mailers are unhappy mailing to root, you have to use an alias. It's a permissions thing. They have a 'mexican wave' of processes firing the mail to each other; all have different uids and the last has the uid of the recipient. If one gets root, it will default to nobody :-/. Your like on the log looks like a mail sent to root 2266 bytes, from root to root. That bit is hardly kosher either, having the recipient and sender as the same guy. Get a luser or two into the picture.
 
Old 12-26-2009, 07:41 AM   #3
kbp
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Take a look at /etc/aliases, if you see an entry like :

Code:
root:		kbp
.. then there will never be any mail in roots mailbox, check kbp's instead

cheers
 
Old 12-26-2009, 08:21 AM   #4
AwesomeMachine
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Registered: Jan 2005
Location: USA and Italy
Distribution: Debian jessie/sid; OpenSuSE; Fedora
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On a desktop or laptop system, mail is sent to the user's mail, not the root account.
 
Old 12-31-2009, 09:55 PM   #5
northpoint
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Registered: Dec 2009
Location: Quebec Laurentians
Distribution: Fedora
Posts: 5

Original Poster
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thanks for the feedback
 
  


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