Below is the output of the split dns check:
health.umd.edu has address 128.8.222.205
health.umd.edu mail is handled by 5 health.umd.edu.
health.umd.edu mail is handled by 15 mail.health.umd.edu.
Code:
ee /etc/resolv.conf
search umd.edu
nameserver 128.8.5.2
nameserver 128.8.74.2
nameserver 128.8.76.2
Code:
dig health.umd.edu mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25291
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 3, ADDITIONAL: 5
;; QUESTION SECTION:
;health.umd.edu. IN MX
;; ANSWER SECTION:
health.umd.edu. 300 IN MX 5 health.umd.edu.
health.umd.edu. 300 IN MX 15 mail.health.umd.edu.
;; AUTHORITY SECTION:
umd.edu. 60000 IN NS ns2.umd.edu.
umd.edu. 60000 IN NS noc.umd.edu.
umd.edu. 60000 IN NS ns1.umd.edu.
;; ADDITIONAL SECTION:
health.umd.edu. 300 IN A 128.8.222.205
mail.health.umd.edu. 300 IN A 128.8.222.203
noc.umd.edu. 60000 IN A 128.8.5.2
ns1.umd.edu. 60000 IN A 128.8.74.2
ns2.umd.edu. 60000 IN A 128.8.76.2
;; Query time: 2 msec
;; SERVER: 128.8.5.2#53(128.8.5.2)
;; WHEN: Sun Nov 28 07:19:10 2010
;; MSG SIZE rcvd: 203
Code:
dig health.umd.edu any
; <<>> DiG 9.4.2-P2 <<>> health.umd.edu any
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3330
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 3, ADDITIONAL: 4
;; QUESTION SECTION:
;health.umd.edu. IN ANY
;; ANSWER SECTION:
health.umd.edu. 300 IN A 128.8.222.205
health.umd.edu. 300 IN MX 5 health.umd.edu.
health.umd.edu. 300 IN MX 15 mail.health.umd.edu.
;; AUTHORITY SECTION:
umd.edu. 60000 IN NS noc.umd.edu.
umd.edu. 60000 IN NS ns2.umd.edu.
umd.edu. 60000 IN NS ns1.umd.edu.
;; ADDITIONAL SECTION:
mail.health.umd.edu. 300 IN A 128.8.222.203
noc.umd.edu. 60000 IN A 128.8.5.2
ns1.umd.edu. 60000 IN A 128.8.74.2
ns2.umd.edu. 60000 IN A 128.8.76.2
;; Query time: 1 msec
;; SERVER: 128.8.5.2#53(128.8.5.2)
;; WHEN: Sun Nov 28 07:22:08 2010
;; MSG SIZE rcvd: 203