Hello Stefano, Chiesa, Stefano <stefano.chi...@nttdata.com> writes:
> Hello all. > I manage several BIND 9.10.4-P8 servers with more of less 600 DNS zones. > Anyway I never used wildcard DNS record and I hope you can help me to > understand. > > The need is: > * I have a dns zone i.e. example.com > * this zone will have an unknown number of sub domains, let's say > siteA.example.com, siteB.example.com, siteC.example.com with other record > inside > > I need to know if it is possible create an A record valid for all the sub > domains, WWW for instance. > > I thought that a record like this: > www.* IN A 1.2.3.4 > > could work and if I'd query www.siteA.example.com it would return 1.2.3.4 ... > but it does not work. > > Can you tell me if it is possible and how? I've did a webinar for Men & Mice a while ago explaining DNS wildcards and their limits. Video and Slides are online: <https://www.menandmice.com/resources/webinar-dns-wildcards-demystified/> Slides: <https://de.slideshare.net/MenandMice/dns-wildcards-webinar-april-2014> > I thought that a record like this: > www.* IN A 1.2.3.4 DNS Wildcards only work on the leftmost label, not "inside" a domain name. See also RFC 4592 for a good discussion on DNS wildcards. Best regards Carsten _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
