At 10:03 PM 6/21/2005 -0700, David MacQuigg wrote:
Using BIND 9.2.4, a typical query to aol.com gets:
dave(_at_)ubuntu:~$ dig aol.com mx
; <<>> DiG 9.2.4 <<>> aol.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59482
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 9
;; QUESTION SECTION:
;aol.com. IN MX
;; ANSWER SECTION:
aol.com. 3166 IN MX 15 mailin-02.mx.aol.com.
aol.com. 3166 IN MX 15 mailin-03.mx.aol.com.
aol.com. 3166 IN MX 15 mailin-04.mx.aol.com.
aol.com. 3166 IN MX 15 mailin-01.mx.aol.com.
;; ADDITIONAL SECTION:
mailin-02.mx.aol.com. 296 IN A 64.12.138.89
mailin-02.mx.aol.com. 296 IN A 205.188.156.249
mailin-02.mx.aol.com. 296 IN A 205.188.159.217
mailin-02.mx.aol.com. 296 IN A 64.12.137.121
mailin-01.mx.aol.com. 204 IN A 205.188.155.89
mailin-01.mx.aol.com. 204 IN A 205.188.156.185
mailin-01.mx.aol.com. 204 IN A 205.188.159.57
mailin-01.mx.aol.com. 204 IN A 64.12.137.89
mailin-01.mx.aol.com. 204 IN A 64.12.138.57
;; Query time: 3597 msec
;; SERVER: 216.183.68.110#53(216.183.68.110)
;; WHEN: Tue Jun 21 21:14:29 2005
;; MSG SIZE rcvd: 276
I seem to always get the same 4 MX records, so apparently round-robin is
turned OFF at aol.
Correction. Round-robin is working OK at aol. I waited 3166 seconds, and
got the same 4 MX records above, but in a different order. I'm still
learning DNS. :>)
--
Dave
************************************************************ *
* David MacQuigg, PhD email: david_macquigg at yahoo.com * *
* IC Design Engineer phone: USA 520-721-4583 * * *
* Analog Design Methodologies * * *
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