Daniel,
Here are two things to try (in theory either one should work):
- use an IP address (anything) instead of a bogus host name,
- set $Conf{NmbLookupFindHostCmd} to an empty string; if the DNS lookup
fails and $Conf{NmbLookupFindHostCmd} is empty, then whatever host name you
use should be used without a lookup error.
Craig
On Fri, Nov 23, 2018 at 12:14 AM Daniel Berteaud <
dan...@firewall-services.com> wrote:
> HI there
>
> I have an issue where BackupPC can't backup some hosts anymore. Let me
> explain
>
> - I backup a bunch of servers behind bastion hosts. SSH tunneling is
> configured in ~backuppc/.ssh/config
> - Some of the host behind the bastion do not have a corresponding
> public DNS entry published
> - For all of my hosts, the name of the machine is meaningless. It's
> something like client1_machine3. The DNS name is always set in the
> ClientNameAlias
> - For host behind a bastion, I change the PingCmd to $pingPath -c 1 -w
> 3 bastion.host.net so the bastion is pingued and its latency can be
> checked
>
> Until now, I had a wildcard DNS CNAME entry for the domain of my backup
> servers, which made everything working. But as I'm changing the backend,
> and don't want a wildcard (* IN CNAME foo.bar) entry, I'm now facing the
> issue that, hosts behind a bastion, without a corresponding DNS entry won't
> backup anymore. The error is
>
>
> 2018-11-23 08:59:53 Can't find host ldap.client1.fr via NS and netbios
> 2018-11-23 08:59:53 can't ping (client = client1_ldap); exiting
>
>
>
> Of course it can't find it, and it doesn't need to because everything will
> be done through an ssh tunnel, defined in .ssh/config.
> With my previous setup, it would have looked for ldap.client1.fr, and
> wouldn't have an anwser, and then, it would have looked for
> ldap.client1.fr.firewall-services.com which would get caught by the
> wildcard entry, and then, the backup could run. But the DNS answer itself
> was meaningless, and not used at all.
>
> Is there a way to disable this lookup for such cases ?
>
> Regards, Daniel
>
>
> --
>
> [image: Logo FWS]
> *Daniel Berteaud*
>
> FIREWALL-SERVICES SAS.
> Société de Services en Logiciels Libres
> Tel : 05 56 64 15 32
> Matrix: @dani:fws.fr
> *www.firewall-services.com <http://www.firewall-services.com>*
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