Not log these? or minimize logging of this?

General questions
1 
vyos@bldg55-vyos:~$ ls -al /var/log/messages*
-rw-r----- 1 root adm  56330 Oct 23 12:58 /var/log/messages
-rw-r----- 1 root adm 263702 Oct 23 12:58 /var/log/messages.1
-rw-r----- 1 root adm 262447 Oct 23 12:58 /var/log/messages.2
-rw-r----- 1 root adm 263561 Oct 23 12:58 /var/log/messages.3
-rw-r----- 1 root adm 262444 Oct 23 12:58 /var/log/messages.4
-rw-r----- 1 root adm 266216 Oct 23 12:58 /var/log/messages.5
-rw-r----- 1 root adm 262486 Oct 23 12:58 /var/log/messages.6

vyos@bldg55-vyos:~$ grep -c 'Inserting' /var/log/messages*
/var/log/messages:268
/var/log/messages.1:1278
/var/log/messages.2:1233
/var/log/messages.3:1277
/var/log/messages.4:1231
/var/log/messages.5:1298
/var/log/messages.6:1233

Oct 23 12:57:57 bldg55-vyos pdns-recursor[2389]: msg="Inserting forward zone based on hosts file" subsystem="config" level="0" prio="Notice" tid="0" ts="1698080277.789" zone="CHRMBK-ABCDEFG012345.xyz.cbk.abc"

Oct 23 12:57:57 bldg55-vyos pdns-recursor[2389]: msg="Inserting reverse zone based on hosts file" subsystem="config" level="0" prio="Notice" tid="0" ts="1698080277.789" zone="204.63.120.10.in-addr.arpa"

I’m migrating more dhcp scopes here and

tail -F /var/log/messages | grep DHCP

or

tail -F /var/log/messages | grep dhcpd

just gets tons of:

tail: ‘/var/log/messages’ has been replaced; following new file

Thank you in advance

2

show log or using journalctl is the way to go for systemd infected distros.

3

pdns recursor logs bothered me too.

It updates hostfile every time a client connects to network and then it logs details of all connected clients instead of limiting logging to the client that just connected. It adds a lot of spam. I don’t know if there is a knob in pdns recursor to turn it down a bit

4

Out of the blue it doesnt seem to exist any particular setting related to that:

https://doc.powerdns.com/recursor/settings.html

Did you try changing loglevel to see if that changes anything in terms of amount of relative logs?

5

Yes you are right. There is no toggle to limit this and I have set loglevel=4 in pdns config to minimize it.