Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 7 Jun 2016 09:00:29 +0100
From:      krad <kraduk@gmail.com>
To:        Slawa Olhovchenkov <slw@zxy.spb.ru>
Cc:        "stable@freebsd.org" <stable@freebsd.org>
Subject:   Re: unbound and ntp issuse
Message-ID:  <CALfReye2A8XBcjSg%2BB0Z7_j4HJsF9h7EAEjAW4Li2F5c=846YA@mail.gmail.com>
In-Reply-To: <20160606135018.GL75630@zxy.spb.ru>
References:  <20160602122727.GB75625@zxy.spb.ru> <44lh2mi0k5.fsf@lowell-desk.lan> <20160603191523.GE75630@zxy.spb.ru> <44y46ie92p.fsf@lowell-desk.lan> <20160606135018.GL75630@zxy.spb.ru>

next in thread | previous in thread | raw e-mail | index | archive | help
Well there is a deadlock situation there so you have to relax one of the
conditions, for one time at least.

Your best bet is to do a manual ntpdate against a fixed ip of known
goodness. If you have a lot of machines you need to do this on, use ansible
or similar to do the heavy lifting for you. Ansible is best in my opinion
if you dont have anything setup as its quick to get going. It does require
python on the target machines so you would need to install that first.
Something like the following should get it working (as you dont have dns on
the target machine, package fetches wont work, so i would tunnel a squid
proxy and let that handle all the internet stuff.

add something like the following to your ssh_config

Host *
RemoteForward 31280 squid_server:3128

then run some stuff like this (after installing ansible on your
desktop/bastion host)

ansible  -b -m raw -a '/usr/bin/env ASSUME_ALWAYS_YES=1 http_proxy=
http://127.0.0.1:31280 /usr/sbin/pkg bootstrap -f' -u root -i
<host_list_file> -kS --ask-su-pass

ansible  -b -m raw -a 'env ASSUME_ALWAYS_YES=YES http_proxy=
http://127.0.0.1:31280 pkg install python' -u root -i <host_list_file>
-kS --ask-su-pass

ansible -m shell -a "ntpdate <good_ntp_server_ip>"  -kS --ask-su-pass -i
<host_list_file>

from here on you should be able to start unbound and then ntpd eg

ansible -m service -a "name=local_unbound state=restarted"
 -kS --ask-su-pass -i <host_list_file>
ansible -m service -a "name=ntpd state=restarted"  -kS --ask-su-pass -i
<host_list_file

Alternatively you could just relax your dnssec rules on first boot to give
ntp a chance. Probably much easier 8)

Also make sure you are using the '-g' flag on ntpd

On 6 June 2016 at 14:50, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:

> On Mon, Jun 06, 2016 at 09:33:02AM -0400, Lowell Gilbert wrote:
>
> > Slawa Olhovchenkov <slw@zxy.spb.ru> writes:
> >
> > > On Fri, Jun 03, 2016 at 02:34:18PM -0400, Lowell Gilbert wrote:
> > >
> > >> Slawa Olhovchenkov <slw@zxy.spb.ru> writes:
> > >>
> > >> > Default install with local_unbound and ntpd can't be functional with
> > >> > incorrect date/time in BIOS:
> > >> >
> > >> > Unbound requred correct time for DNSSEC check and refuseing queries
> > >> > ("Jul 1 20:17:29 yellowrat unbound: [3444:0] info: failed to prime
> > >> > trust anchor -- DNSKEY rrset is not secure . DNSKEY IN")
> > >> >
> > >> > ntpd don't have any numeric IP of ntp servers in ntp.conf -- only
> > >> > symbolic names like 0.freebsd.pool.ntp.org, as result -- can't
> > >> > resolve (see above, about DNSKEY).
> > >>
> > >> I can't see how this would happen. DNSSEC doesn't seem to be required
> in
> > >> a regular install as far as I can see. Certainly I don't have any
> > >
> > > I don't know reasson for enforcing DNSSEC in regular install.
> > > I am just select `local_unbound` at setup time and enter `127.0.0.1` as
> > > nameserver address.
> >
> > That's not enough to configure unbound as a fully recursive DNS
> > server.
>
> What I am missing?
> Need to fix unbound setup scripts? bsdinstall scripts?
> As I see unbound setup scripts detects 127.0.0.1 in resolv.conf and
> configured unbound as fully recursive DNS server.
>
> > If your system gets its address through DHCP, it is probably
> > getting DNS server addresses as well, and would work fine *without* your
> > configuring any of the DNS state.
>
> I am have static address and don't getting DNS server address.
>
> > >> problem on any of my systems, and I've never configured an anchor on
> the
> > >> internal systems.
> > >>
> > >> > IMHO, ntp.conf need to include some numeric IP of public ntp
> servers.
> > >>
> > >> Ouch; that's a terrible idea, for several different reasons.
> > >
> > > What else?
> >
> > All the normal reasons that hard-coding IP addresses is a bad idea; they
> > can change, you're encouraging a lot of people to use the same ones, etc.
>
> And how to resolve this issuse:
>
> - default install with unbound as recursive DNS server (by default
>   enforcing DNSSEC)
> - ntp time synchronisation
> - stale CMOS time (2008 year)
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
>



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CALfReye2A8XBcjSg%2BB0Z7_j4HJsF9h7EAEjAW4Li2F5c=846YA>