Re: DHCPD server logging issue

[Aaron Gray <aaronngray.lists@xxxxxxxxx>]

On Fri, 18 Oct 2019 at 17:37, Bill Shirley <bshirley@xxxxxxxxxxxxxxxxx> wrote:

Yes, you need the rsyslog package installed:
[1:root@bb8 rsyslog 148]$ rpm -qf /etc/rsyslog.conf
rsyslog-8.38.0-1.fc27.x86_64

I have all my DHCP logging go to a separate file.  To do this, comment out your log-facility in dhcpd.conf
and add this just after the '#### RULES ####' comment in /etc/rsyslog.conf:
if $programname == 'dhcpd' then {
  action(type="omfile" file="/var/log/dhcpd.log")
#  if $syslogseverity >= 4 then stop    # warning
#  if $syslogseverity >= 5 then stop    # notice
  if $syslogseverity >= 6 then stop     # info
  if $msg contains 'incoming update is less critical than outgoing update' then stop
}
Restart rsyslog "systemctl restart rsyslog.service".

Any severity greater than 'info' will also be logged to /var/log/messages.

Since you're adding a new log file, edit /etc/logrotate.d/rsyslog and add /var/log/dhcpd.log.

Great, thanks alot, got normal logs :)

Bill

On 10/18/2019 11:09 AM, Mark C. Allman wrote:

On 10/18/19 10:45 AM, Aaron Gray wrote:

I am having problems working out how to get proper non journal logging normal text logging for the DHCP server.

Theres the following statement in /etc/dhcp/dhcpd.conf :-

    # Use this to send dhcp log messages to a different log file (you also
    # have to hack syslog.conf to complete the redirection).
    log-facility local7;

I cannot seem to find syslog.conf or rsyslog.conf in /etc

There is a /usr/share/doc/sudo/examples/syslog.conf documentation file but there are no syslog or syslog services.

-- 
Aaron Gray

Independent Open Source Software Engineer, Computer Language Researcher, Information Theorist, and amateur computer scientist.

Do you have the rsyslog package installed?  That's what provides /etc/rsyslog.conf.  The file /usr/share/doc/sudo/examples/syslog.conf is provided by the sudo package.



*Mark C. Allman, PMP, CSM*
Founder, See How You Ski, www.seehowyouski.com <http://www.seehowyouski.com>
Sr. Project Manager, Allman Professional Consulting, Inc., www.allmanpc.com <http://www.allmanpc.com>
617-947-4263, Twitter: @allmanpc
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Thanks !

--

Aaron Gray

Independent Open Source Software Engineer, Computer Language Researcher, Information Theorist, and amateur computer scientist.

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