Mailscanner SA Bayes Permissions

[klausengelmann]

Hello everybody !!!

After a complete installation of Postfix + Mailscanner + SA + Mailwatch according to some Howtoforge Tutorials I run into this error:

A Learn: error code 13 returned from sa-learn: bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/O: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied ERROR: the Bayes learn function returned an error, please re-run with -D for more information Learned tokens from 0 message(s) (1 message(s) examined)
Delete: deleted file /var/spool/MailScanner/quarantine/20090319/spam/9C5428630220.2DC3A

My filesystem permissions regarding this problem are:

[root@prometeu spamassassin]# pwd
/var/spool/MailScanner/spamassassin
[root@prometeu spamassassin]# ls -lah
total 10M
drwxrwsr-x 2 postfix apache 4.0K Mar 19 16:25 .
drwxr-xr-x 5 postfix postfix 4.0K Dec 1 16:11 ..
-rw------- 1 postfix postfix 2.5M Mar 19 16:25 auto-whitelist
-rw------- 1 postfix apache 29K Mar 19 16:25 bayes_journal
-rw-rw---- 1 apache apache 30 Mar 19 16:23 bayes.mutex
-rw-rw---- 1 postfix apache 5.0M Mar 19 16:25 bayes_seen
-rw------- 1 postfix apache 5.0M Mar 19 16:25 bayes_toks
[root@prometeu spamassassin]#

The worst thing is that if I change the permissions according to what it is recommended here (g+rw) after some the permissions change again.

I also tried to edit /etc/MailScanner/spam.assassin.prefs.conf without success.

Anyone knows how to solve this issue ?

I like to train my SA using Bayes.

Thanks,

Klaus

[falko]

Originally Posted by klausengelmann

A Learn: error code 13 returned from sa-learn: bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/O: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied bayes: cannot open bayes databases /var/spool/MailScanner/spamassassin/bayes_* R/W: tie failed: Permission denied ERROR: the Bayes learn function returned an error, please re-run with -D for more information Learned tokens from 0 message(s) (1 message(s) examined)
Delete: deleted file /var/spool/MailScanner/quarantine/20090319/spam/9C5428630220.2DC3A

What user is getting this error (i.e., what user is trying to access /var/spool/MailScanner/spamassassin/bayes_*)?

Is this the Spamsnake tutorial you're using?

[klausengelmann]

Thanks for your reply falko !!!

The tutorial I was using was:

Virtual Users And Domains With Postfix, MailScanner, Mailwatch & MySQL On CentOS 5.1

I also took a look a the Perfect SpamSnake but I am still having the same problem. Using mailwatch there is an error pointing to bayes_* files in /var/spool/Mailscanner/spamassassin directories.

Any thoughts about the issue ?

Klaus Engelmann
UFCSPA - Brazil

[falko]

Did you disable SELinux?

[klausengelmann]

Yes, indeed SElinux is disabled.

By the way, I tried this on /etc/MailScanner/MailScanner.conf

Run As User = postfix
Run As Group = postfix

Incoming Work User =
Incoming Work Group = clamav

Quarantine User = root
Quarantine Group = apache

SpamAssassin User State Dir = /var/spool/MailScanner/spamassassin

Quarantine Permissions = 0660
Incoming Work Permissions = 0640

Rebuild Bayes Every = 0
Wait During Bayes Rebuild = no

And this is what I done on /etc/MailScanner/spam.assassin.prefs.conf:

bayes_path /var/spool/MailScanner/spamassassin/bayes
bayes_file_mode 0660
# bayes_auto_learn 0
#bayes_auto_expire 0

The error still continues. Because I am running out of resources I am ready to investigate the VMWARE image available.

Any other suggestions ?

Klaus Engelmann

[falko]

What happens when you use

bayes_path /var/spool/MailScanner/spamassassin/bayes
bayes_file_mode 0666

?

[klausengelmann]

falko:

Thanks for your suggestion. But I am still having the same error.

Look this:
SA Learn: error code 13 returned from sa-learn:

bayes: locker: safe_lock: cannot create lockfile /var/spool/MailScanner/spamassassin/bayes.mutex: Permission denied
bayes: expire_old_tokens: locker: safe_lock: cannot create lockfile /var/spool/MailScanner/spamassassin/bayes.mutex: Permission denied
bayes: locker: safe_lock: cannot create lockfile /var/spool/MailScanner/spamassassin/bayes.mutex: Permission denied Learned tokens from 0 message(s) (1 message(s) examined)

The filesystem permissions used on my experiencies were:


1) First

[root@prometeu spamassassin]# ls -lah
total 11M
drwxrwsr-x 2 postfix apache 4.0K Mar 22 13:38 .
drwxrwxr-x 5 postfix postfix 4.0K Dec 1 16:11 ..
-rw-rw---- 1 postfix postfix 2.5M Mar 22 13:38 auto-whitelist
-rw-rw-rw- 1 postfix apache 100K Mar 22 13:38 bayes_journal
-rw-rw---- 1 postfix postfix 36 Mar 19 20:25 bayes.mutex
-rw-rw-rw- 1 postfix apache 5.0M Mar 22 13:34 bayes_seen
-rw-rw-rw- 1 postfix apache 5.2M Mar 22 13:34 bayes_toks

2) Second.

[root@prometeu spamassassin]# chown root bayes_*

[root@prometeu spamassassin]# ls -lah
total 11M
drwxrwsr-x 2 postfix apache 4.0K Mar 22 13:38 .
drwxrwxr-x 5 postfix postfix 4.0K Dec 1 16:11 ..
-rw-rw---- 1 postfix postfix 2.5M Mar 22 13:38 auto-whitelist
-rw-rw-rw- 1 root apache 100K Mar 22 13:38 bayes_journal
-rw-rw---- 1 postfix postfix 36 Mar 19 20:25 bayes.mutex
-rw-rw-rw- 1 root apache 5.0M Mar 22 13:34 bayes_seen
-rw-rw-rw- 1 root apache 5.2M Mar 22 13:34 bayes_toks

After all this I was wondering which user is used to run sa-bayes ? Or better than that: which user is used to run Spamassassin.

Thanks for all you effort.

Klaus Engelmann

[falko]

What's the output of

ps aux | grep -i spam

?

[klausengelmann]

Falko:

Now I am worried. Look at this output:

[root@prometeu ~]# ps aux | grep -i spam
root 12498 0.0 0.0 3908 716 pts/0 S+ 20:00 0:00 grep -i spam

There is something that should be noticed here ?

I thought that MailScanner was responsible to run Spamassassin as part of its rules and other tests, jusk like amavisd-new does.

Here are other services related to the installation I completed following the howtoforge tutorials mentioned before.

As soon as I complete some tests I'll post here.

Thanks falko,

[root@prometeu ~]# ps gauwx

clamav 2938 0.1 2.2 223024 185464 ? Ss Mar04 28:01 clamd

sqlgrey 3078 0.0 0.1 17144 9676 ? Ss Mar04 0:59 /usr/bin/perl -w /usr/sbin/sqlgrey -d

apache 3780 0.2 0.6 71436 49708 ? S 11:14 1:31 /usr/sbin/httpd

postfix 8542 0.0 0.6 78700 49924 ? S 18:39 0:02 MailScanner: waiting for messages
postfix 8561 0.0 0.6 79480 51080 ? S 18:39 0:04 MailScanner: waiting for messages

postfix 10819 0.0 0.0 6800 1768 ? S 19:27 0:00 anvil -l -t unix -u
postfix 10872 0.1 0.6 78804 50384 ? S 19:28 0:02 MailScanner: waiting for messages

postfix 11246 0.1 0.5 77744 49316 ? S 19:38 0:01 MailScanner: waiting for messages
apache 11317 0.1 0.5 67904 45416 ? S 19:39 0:01 /usr/sbin/httpd
postfix 11466 0.1 0.6 78588 49756 ? S 19:41 0:01 MailScanner: waiting for messages
postfix 11478 0.0 0.2 33096 23500 ? S 19:41 0:00 MailWatch SQL
postfix 11687 0.0 0.0 6804 1764 ? S 19:44 0:00 pickup -l -t fifo -u

postfix 12352 0.0 0.0 6836 2076 ? S 19:58 0:00 trivial-rewrite -n rewrite -t unix -u
postfix 12356 0.0 0.0 6796 1708 ? S 19:58 0:00 spawn -n spfpolicy -t unix user=nobody argv=/usr/bin/perl /usr/local/lib/postfix-policyd-spf-
postfix 12358 0.0 0.0 7076 2304 ? S 19:58 0:00 cleanup -z -t unix -u
postfix 12370 0.0 0.0 6844 1816 ? S 19:58 0:00 pipe -n dovecot -t unix flags=DRhu user=vmail vmail argv=/usr/libexec/dovecot/deliver -f ${se
postfix 12398 0.0 0.0 7336 3464 ? S 19:59 0:00 smtpd -n smtp -t inet -u
postfix 12400 0.0 0.0 6844 1816 ? S 19:59 0:00 pipe -n dovecot -t unix flags=DRhu user=vmail vmail argv=/usr/libexec/dovecot/deliver -f ${se
postfix 12402 0.0 0.0 6840 1812 ? S 19:59 0:00 pipe -n dovecot -t unix flags=DRhu user=vmail vmail argv=/usr/libexec/dovecot/deliver -f ${se
postfix 12414 0.0 0.0 6796 1712 ? S 20:00 0:00 spawn -n spfpolicy -t unix user=nobody argv=/usr/bin/perl /usr/local/lib/postfix-policyd-spf-

nobody 12415 0.0 0.0 9828 8116 ? Ss 20:00 0:00 /usr/bin/perl /usr/local/lib/postfix-policyd-spf-perl

postfix 12598 0.0 0.0 6892 2140 ? S 20:02 0:00 local -t unix


postfix 12630 0.0 0.0 6968 1992 ? S 20:03 0:00 smtp -t unix -u
postfix 12631 0.0 0.0 6968 1936 ? S 20:03 0:00 smtp -t unix -u
postfix 12632 0.0 0.0 6972 1940 ? S 20:03 0:00 smtp -t unix -u
postfix 12633 0.0 0.0 6972 1996 ? S 20:03 0:00 smtp -t unix -u
postfix 12634 0.0 0.0 6840 1744 ? S 20:03 0:00 bounce -z -n defer -t unix -u
postfix 12638 0.0 0.0 7336 3216 ? S 20:03 0:00 smtpd -n smtp -t inet -u

postfix 17118 0.0 0.0 6980 2016 ? S 04:13 0:01 qmgr -l -t fifo -u
postfix 17164 0.0 0.0 6804 1824 ? S 04:13 0:00 tlsmgr -l -t unix -u

root 22194 0.0 0.0 6744 1772 ? Ss Mar22 0:05 /usr/libexec/postfix/master
postfix 22227 0.0 0.2 26624 20268 ? Ss Mar22 0:00 MailScanner: starting child

[falko]

Hm, I can't tell what's wrong...