[Samba] winbind seems to hang when the DC goes down instead of switching to the other available DC
Marco Gaiarin
gaio at sv.lnf.it
Tue Aug 27 16:31:31 UTC 2019
Mandi! L.P.H. van Belle via samba
In chel di` si favelave...
> Well, this is a hard one to answer for me.
> I'll give it a try. ;-)
....out of my workhour, in my last workday. ;-)
Sorry for the late answer.
> Yes, that will work but done wrong, you might create a circular reference.
> Using glue or not, this depends also on how you setup your resolving.
> But still, nothing wrong in using glue records.
Ok. I know perfectly 'pains and pleasures' of DNS... ;-)
> Yes, .. And No, because again, it depends on how you setup your dns resolving.
No, i'm speaking strictly to 'member servers', clarly also i've some
server not in domain, that have a different DNS setup.
For DM, a forward zone like this:
; for a SITEA DM server
;
zone "your.dnsdomain.tld" {
type forward;
forwarders { IP_DC1_SITEA; IP_DC2_SITEA; };
; NO 'forward only;' !!!
};
seems pretty good to me: the DM 'prefere' the DC in their site, but,
because there's no 'forward only;', still are able to resolve from
dother DC (if, clearly there's one alive and the dns in correctly
configured ;).
> > Just i'm here, there's some way to tackle 'roundrobin/handoff'
> > parameters between forwarders {} listed server, more or less like what
> > you suggest for /etc/resolv.conf?
> Think your looking for this.
> http://www.zytrax.com/books/dns/ch7/queries.html#rrset-order
Yes, but seems related to zone data, not to forwarders. But i've found:
https://docstore.mik.ua/orelly/networking_2ndEd/dns/ch10_05.htm
(look at 'Forwarder Selection' at the bottom); seems that 'round-robin'
is builtin by Bind 8.2.3... goood...
--
dott. Marco Gaiarin GNUPG Key ID: 240A3D66
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