Bind regular reload

[Martin Nino]

Hi all,

I noticed that the Bind is reloading weekly on my RHEL6, RHEL7 and CentOS7 
systems with up-to-date version of distribution Bind package.




System messages:


# grep "Reloaded Berkeley Internet Name Domain (DNS)" /var/log/messages
Oct 28 04:02:03 nameserver systemd: Reloaded Berkeley Internet Name Domain 
(DNS).
Nov  4 04:02:03 nameserver systemd: Reloaded Berkeley Internet Name Domain 
(DNS).
Nov 11 04:02:03 nameserver systemd: Reloaded Berkeley Internet Name Domain 
(DNS).
Nov 18 04:02:03 nameserver systemd: Reloaded Berkeley Internet Name Domain 
(DNS).

...




Bind log channel:


# grep "received control channel command 'reload'" /var/named/chroot/var/
log/bind.log
28-Oct-2018 04:02:03.583 general: info: received control channel command 
'reload'
04-Nov-2018 04:02:03.408 general: info: received control channel command 
'reload'
11-Nov-2018 04:02:03.199 general: info: received control channel command 
'reload'
18-Nov-2018 04:02:03.715 general: info: received control channel command 
'reload'


...




I didn't find any information about such behavior. Is it known feature/issue
and is there really reason for that?




Martin
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