[Samba] DNS logging for TLD queries?
L.P.H. van Belle
belle at bazuin.nl
Wed Jan 3 15:05:51 UTC 2018
The last error you get is because bind was not stopped, there is still something running.
ps -faux | egrep "rndc|bind|named"
Kill it and run the stopcommand again ( systemctl stop bind9 )
The start it again, should work.
Gr,
Louis
> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens
> lingpanda101 via samba
> Verzonden: woensdag 3 januari 2018 16:00
> Aan: samba at lists.samba.org
> CC: Denis Cardon
> Onderwerp: Re: [Samba] DNS logging for TLD queries?
>
> On 1/3/2018 9:38 AM, lingpanda101 wrote:
> > On 1/2/2018 2:50 AM, Denis Cardon wrote:
> >> Hi LingPanda101,
> >>
> >>
> >>> Is it possible to filter DNS queries for specific
> TLD's using the
> >>> internal logging system? My IPS/IDS alerts me when a
> suspicious TLD is
> >>> being queried. However I'm only able to see the DC as the
> source.
> >>> Thanks.
> >>>
> >>> Ubuntu 14.04 Samba 4.7.3.
> >>
> >> First you should really upgrade to 4.7.4 (see recent changelog)
> >>
> >> Second, if you are not using Bind DLZ, you should set it
> up, it works
> >> much better than the internal DNS engine.
> >>
> >> And third it is then just a matter of configuring Bind
> properly, you
> >> can check our wiki at the following address (yeah, it's in French,
> >> but it shouldn't be too much of a hassle for your favorite
> >> translation tool):
> >>
> >>
> https://dev.tranquil.it/wiki/SAMBA_-_Audit_requetes_DNS_et_logs_Bind9
> >>
> >> Actually we had exactly the same question from a client a
> few month
> >> ago...
> >>
> >> Cheers, and happy new year 2018!
> >>
> >> Denis
> >>
> >>>
> >>
> >>
> > Denis,
> >
> > I've attempted to setup the logging per your link. I ran into a
> > couple issues.
> >
> > * Using your template for log.conf. Bind refuses to start
> because of
> > the following lines.
> > o 'local syslog2;' Bind complains it doesn't know how to
> > interpret local
> > + I'm assuming this line tells the logging system where to
> > find syslog? I replaced with 'file "var/log/syslog";'
> > * Bind also didn't know how to interpret 'blade-servers
> {null; };'
> > o Seeing as I'm not using one. I commented the line out.
> >
> > After these changes Bind still wouldn't start, but not because of
> > these errors. Now its a permission issue.
> >
> > set up managed keys zone for view _default, file 'managed-keys.bind'
> > Jan 3 09:25:03 ddc2 named[13127]: command channel listening on
> > 127.0.0.1#953
> > Jan 3 09:25:03 ddc2 named[13127]: command channel
> listening on ::1#953
> > Jan 3 09:25:03 ddc2 named[13127]: isc_stdio_open '/var/log/syslog'
> > failed: permission denied
> > Jan 3 09:25:03 ddc2 named[13127]: configuring logging:
> permission denied
> > Jan 3 09:25:03 ddc2 named[13127]: loading configuration:
> permission
> > denied
> > Jan 3 09:25:03 ddc2 named[13127]: exiting (due to fatal error)
> >
> > Before I go changing permissions. Am I correct in the two changes I
> > made previously to get to this point? Thanks.
> >
> > --
> >
> > James
> >
> Denis,
>
> One issue was a typo. I omitted the 2 from the syslog file. Bind
> now starts but I do get
>
> rndc: connect failed: 127.0.0.1#953: connection refused
>
>
> --
> --
> James
>
> --
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