can't send email with nagios [solved]

[majed]

Peace,
i am using sendmail and i am not able to send mail.

the log shows:

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nagios nagios[3650]: wproc:   stderr line 01: Program mode requires special privileges, e.g., root or TrustedUser.
Aug  7 10:17:04 nagios nagios[3650]: wproc:   stdout line 01: WARNING: RunAsUser for MSP ignored, check group ids (egid=1000, want=209)
Aug  7 10:17:04 nagios nagios[3650]: wproc:   stdout line 02: can not chdir(/var/spool/clientmqueue/): Permission denied

when i try to send mail from command line, i get:

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nagios sendmail[8645]: t777J1Cm008645: to=email adress ,great,test, ctladdr=root (0/0), delay=00:00:03, xdelay=00:00:00, mailer=relay, pri=90003, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: 421 4.3.0 collect: Cannot write ./dft777J4ZY008665 (bfcommit, uid=0, gid=209): Permission denied

the permissions to /var/spool are no as follows:

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nagios ~ # ls -l /var/spool
total 16
drwxrwx--- 2 smmsp smmsp 4096 Aug  7 10:20 clientmqueue
drwxr-x--- 4 root  cron  4096 Jul 31 16:50 cron
drwxrwxr-x 2 mail  root  4096 Aug  7 09:37 mail
drwxr-xr-x 2 smmsp root  4096 Aug  7 09:38 mqueue

i'm sure it's a permission or/and ownership problem, but i just don't know what file or folder to check.

[jdalrymple]

No idea what you have going on here. Is this truly sendmail, or is it Postfix, Exim, or some other?

What OS, and what version?

How did you install/configure your mailer?

What happens when you su to root and try to send mail?

This is more of a system issue than a Nagios issue. We're happy to help, but you might get better assistance on forums dedicated to your flavor of Linux since it's likely a problem that has been run into before.

[majed]

the os is gentoo, there no mailer on the system other than sendmail. i had no luck in getting a reply on the gentoo forum.

i tried:

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nagios@nagios ~ $ echo "test sendmail" | /usr/sbin/sendmail -s "test" yourmail@domain.tld

got:

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WARNING: RunAsUser for MSP ignored, check group ids (egid=1000, want=209)

in /etc/passwd
nagios group id was 1000 and smmsp gid was 209. so i changed guid of nagios to 209 and added it to group smmsp but what mattered was changed the gid.

then the command started executing without error but in /var/log/messages:
i get:

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Aug 11 15:10:06 nagios sendmail[5813]: t7BCA6je005813: to=email address,test, ctladdr=nagios (1000/209), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=60014, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: 421 4.3.0 collect: Cannot write ./dft7BCA64D005814 (bfcommit, uid=0, gid=0): Permission denied

uid and gid=0 is that of root so i tried doing

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chown nagios:smmsp /usr/sbin/sendmail

and restarted sendmail, but that didn't help.

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nagios ~ # ls -l /var/spool/                                                total 120
drwxrwxr-x 2 smmsp nagios 106496 Aug 11 15:26 clientmqueue
drwxr-x--- 4 root  cron     4096 Jul 31 16:50 cron
drwxrwxr-x 2 smmsp nagios   4096 Aug  7 09:37 mail
drwxr-xr-x 2 smmsp nagios   4096 Aug  7 09:38 mqueue

knowing that nagios and smmsp groups have gid= 209

it's obviously a permission problem but i still don't know who needs the permission.

[tgriep]

Take a look at this link to see if it helps you.
https://forums.gentoo.org/viewtopic-t-8 ... 51e74c042f

[majed]

thank you very much, weird i didn't find this post while searching the internet.
what solved it for me was setting the directory /var/spool/mqueue to root:root and then,

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chmod g+w /var/spool/mqueue

[tgriep]

That is good to hear. Shall I lock up this post?

[majed]

farewell