dovecot - Oct 2020 - net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied

Hi,

We are getting very occasional messags from dovecot:
> net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied
Over the last week, the message appeared five times. (on a mail server 
with over 100 users, to that's basically almost never)

doveconf -n below
> # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.4 ()
> # OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.6 xfs
snip...
> service stats {
>   unix_listener stats-reader {
>     group = vmail
>     mode = 0660
>     user = vmail
>   }
>   unix_listener stats-writer {
>     group = vmail
>     mode = 0660
>     user = vmail
>   }
> }
and the on-disk permissions are:
> root at dovecot:~# ls -l /var/run/dovecot/*stat*
> srw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats
> prw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats-mail
> prw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats-user
> srw-rw---- 1 vmail vmail 0 Oct  6 00:25 /var/run/dovecot/stats-reader
> srw-rw---- 1 vmail vmail 0 Oct  6 00:25 /var/run/dovecot/stats-writer
We're not sure what makes the Permission denied error happen...

Anyone with an idea?

MJ

Hi,

Nobody?

It happens so rarely, and the system appears to be running fine 
otherwise, should I just ignore it?

Still makes me wonder way it would happen at all..?

MJ

On 10/22/20 12:53 PM, mj wrote:
> Hi,
> 
> We are getting very occasional messags from dovecot:
> 
>> net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission
denied
> 
> Over the last week, the message appeared five times. (on a mail server 
> with over 100 users, to that's basically almost never)
> 
> doveconf -n below
> 
>> # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
>> # Pigeonhole version 0.5.4 ()
>> # OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.6 xfs
> 
> snip...
> 
>> service stats {
>> ? unix_listener stats-reader {
>> ??? group = vmail
>> ??? mode = 0660
>> ??? user = vmail
>> ? }
>> ? unix_listener stats-writer {
>> ??? group = vmail
>> ??? mode = 0660
>> ??? user = vmail
>> ? }
>> }
> 
> and the on-disk permissions are:
> 
>> root at dovecot:~# ls -l /var/run/dovecot/*stat*
>> srw------- 1 root? root? 0 Oct? 6 00:25 /var/run/dovecot/old-stats
>> prw------- 1 root? root? 0 Oct? 6 00:25 /var/run/dovecot/old-stats-mail
>> prw------- 1 root? root? 0 Oct? 6 00:25 /var/run/dovecot/old-stats-user
>> srw-rw---- 1 vmail vmail 0 Oct? 6 00:25 /var/run/dovecot/stats-reader
>> srw-rw---- 1 vmail vmail 0 Oct? 6 00:25 /var/run/dovecot/stats-writer
> 
> We're not sure what makes the Permission denied error happen...
> 
> Anyone with an idea?
> 
> MJ

Hi!

You can ignore it, or you can change the socket permissions to 0666.

service stats {
   unix_listener stats-writer {
      mode = 0666
   }
}

Aki

> On 23/10/2020 17:52 mj <lists at merit.unu.edu> wrote:
> 
>  
> Hi,
> 
> Nobody?
> 
> It happens so rarely, and the system appears to be running fine 
> otherwise, should I just ignore it?
> 
> Still makes me wonder way it would happen at all..?
> 
> MJ
> 
> On 10/22/20 12:53 PM, mj wrote:
> > Hi,
> > 
> > We are getting very occasional messags from dovecot:
> > 
> >> net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission
denied
> > 
> > Over the last week, the message appeared five times. (on a mail server
> > with over 100 users, to that's basically almost never)
> > 
> > doveconf -n below
> > 
> >> # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
> >> # Pigeonhole version 0.5.4 ()
> >> # OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.6 xfs
> > 
> > snip...
> > 
> >> service stats {
> >> ? unix_listener stats-reader {
> >> ??? group = vmail
> >> ??? mode = 0660
> >> ??? user = vmail
> >> ? }
> >> ? unix_listener stats-writer {
> >> ??? group = vmail
> >> ??? mode = 0660
> >> ??? user = vmail
> >> ? }
> >> }
> > 
> > and the on-disk permissions are:
> > 
> >> root at dovecot:~# ls -l /var/run/dovecot/*stat*
> >> srw------- 1 root? root? 0 Oct? 6 00:25 /var/run/dovecot/old-stats
> >> prw------- 1 root? root? 0 Oct? 6 00:25
/var/run/dovecot/old-stats-mail
> >> prw------- 1 root? root? 0 Oct? 6 00:25
/var/run/dovecot/old-stats-user
> >> srw-rw---- 1 vmail vmail 0 Oct? 6 00:25
/var/run/dovecot/stats-reader
> >> srw-rw---- 1 vmail vmail 0 Oct? 6 00:25
/var/run/dovecot/stats-writer
> > 
> > We're not sure what makes the Permission denied error happen...
> > 
> > Anyone with an idea?
> > 
> > MJ