Log rotation and combining...

SH Development listaccount at starionline.com
Fri Nov 17 23:42:52 EET 2017


So, the question is, why can I rotate the log manually, but cron returns a permission error?  Do I need to tell cron to run it as sudo or something like that?

Ethon

> On Nov 17, 2017, at 2:29 AM, Tom Hendrikx <tom at whyscream.net <mailto:tom at whyscream.net>> wrote:
> 
> Hi,
> 
> 
> Your crontab should normally mail you error output. But you can also run
> the logrotate command manually, in verbose mode.
> 
> 
> Kind regards,
> 	Tom
> 
> On 17-11-17 03:35, SH Development wrote:
>> That doesn’t seem to work either.  Where do I find logs for log rotation to see the reason it failed?
>> 
>> Ethon
>> 
>> 
>> 
>>> On Nov 16, 2017, at 7:53 PM, Bill Shirley <bill at KnoxvilleChristian.org <mailto:bill at KnoxvilleChristian.org> <mailto:bill at KnoxvilleChristian.org <mailto:bill at KnoxvilleChristian.org>>> wrote:
>>> 
>>> I believe you need a 'create' statement to set the permissions. Here
>>> is an example for mariadb:
>>> /var/log/mariadb/general.log
>>> /var/log/mariadb/slow_query.log
>>> /var/log/mariadb/error.log
>>> /var/log/mariadb/mariadb.log {
>>>        create 640 mysql mysql
>>>        daily
>>>        minsize 30M
>>>        notifempty
>>>        rotate 3
>>>        missingok
>>>        compress
>>>        sharedscripts
>>>        postrotate
>>> #       # just if mysqld is really running
>>>                if test -x /usr/bin/mysqladmin && \
>>>                        /usr/bin/mysqladmin ping &>/dev/null
>>>                then
>>>                        /usr/bin/mysqladmin flush-logs
>>>                fi
>>>        endscript
>>> }
>>> 
>>> Bill
>>> 
>>> 
>>> On 11/16/2017 4:27 AM, SH Development wrote:
>>>> I have recently noticed that my dovecot-deliver.log is huge and wanted to start rotating it.  So a couple of questions:
>>>> 
>>>> 1. Can the dovecot-deliver.log be combined with the maillog, that gets rotated weekly?  If it can be done, is it advisable?
>>>> Since the inception of this particular server, the log file has been located in the /home/vmail directory.  Is there a reason it shouldn’t be located in the /var/log directory with the maillog?
>>>> 
>>>> 2. Separate from above, if I create a new logrotate script example as follows:
>>>> 
>>>> # dovecot SIGUSR1: Re-opens the log files.
>>>> /home/vmail/dovecot-deliver.log {
>>>>  missingok
>>>>  notifempty
>>>>  delaycompress
>>>>  sharedscripts
>>>>  postrotate
>>>>    /bin/kill -USR1 `cat /var/run/dovecot/master.pid 2>/dev/null` 2> /dev/null || true
>>>>  endscript
>>>> }
>>>> 
>>>> I get the following error only when cron tries to run it:
>>>> 
>>>> /etc/cron.daily/logrotate:
>>>> error: stat of /home/vmail/dovecot-deliver.log failed: Permission denied
>>>> 
>>>> 
>>>> Owner on the log are vmail:vmail.  If I manually force logrotate on this particular log, it works fine.
>>>> 
>>>> 
>>>> Ethon



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