Search Again: Re: Wildcards? From: Paul Didzerekis Date: Thursday, January 13, 2000 Time: 12:24:00 am >At 8:32 AM -0800 1/12/2000, Sam Lewis wrote: >>I've seen one mention of wildcards in the QuickDNS manual but no >>further explanation. >> >>Can QuickDNS be setup so that there are known addresses and then a >>wildcard address so that any unknown address is sent to the wildcard >>address? For example, a simple domain file: >> >> >>samlewis.com ns ns.samlewis.com >>samlewis.com mx 10 mail.samlewis.com >>www.samlewis.com A 192.168.0.1 >>*.samlewis.com A 192.168.0.2 >> >> >>So that the domain acts normally for all "known" or defined >>addresses but say a request for "xyz.samlewis.com" comes in. Since >>it is unknown but a wildcard is setup it is directed to 192.168.0.2? >> >>Is this correct or possible? > >That is indeed how it works; "*.samlewis.com" will match "bogus.samlewis.com", but it will not match "www.samlewis.com", nor will it match "samlewis.com". > >Note that this can also be used for MX records. > >One thing to note is a configuration that, on first glance, looks like it should work, but in fact does not: > >*.example.com. MX 10 mail.example.com. >users.example.com. A 192.168.0.1 >mail.example.com. A 192.168.0.5 > >If mail is sent to "user@users.example.com", it will be delivered to "users.example.com", not "mail.example.com". This is because the wildcard MX record doesn't match "users" - "users.example.com" is already a defined name, with an A record. The fact that it doesn't have an MX record is immaterial. > >So to put it in terms of what *does* work: A wildcard record will match any name that doesn't have any other record of any kind. >____________________________________________________________________ >Chris Buxton cbuxton@menandmice.com >Men & Mice http://www.menandmice.com >Makers of: QuickDNS Pro

Messages In This Thread: Wildcards? by Sam Lewis on Jan 12, 2000 at 4:32:00 pm Re: Wildcards? by Men & Mice Support on Jan 12, 2000 at 11:06:00 pm Re: Wildcards? by Paul Didzerekis on Jan 13, 2000 at 12:24:00 am