Varun Varma posted in linux-india-help: > The DNS resolver subsystem will send a query to lookup the MXs for > mail.abc.net and the DNS would point out that mail.abc.net is a CNAME > for abc.net. Depending on how the DNS is setup, either the client side > resolver would then resend the query as MX records for abc.net or the > DNS server would fetch this for the client and directly return the MX > records for abc.net. Either way, the MX entries for abc.net would be > returned.
Interesting. I didn't know that the DNS RFCs allow this. Do you have any authoritative references on the validity of this trick? > BTW, is it my imagination or does a "dig mx outblaze.com" only return > one MX, the MX has only one A record associated with it? What I am > missing here? When you lookup a DNS entry, you get one. What is so surprising about it? Is there any RFC that says one MUST have multiple MXes, each of them with multiple A records? Binand -- [EMAIL PROTECTED] root]# uptime 11:55am up 58 days, 4:49, 2 users, load average: 1023.78, 419.92, 158.90 ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ linux-india-help mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/linux-india-help
