Opened 5 years ago

Closed 5 years ago

Last modified 5 weeks ago

#595 closed request (fixed)

DNS Negative Caching?

Reported by: Jason_Livingood@… Owned by: bzeeb+ietf@…
Priority: tbd Milestone: ietf-086
Component: other Keywords:
Cc: My Current Location:
My MAC Address: My OS:

Description

Hi – Can you check behavior of the resolvers for the name techfund.comcast.com? It should return a CNAME and then that resolves an A record:

dhcp-16f4:~ jason$ dig techfund.comcast.com

; <<>> DiG 9.8.3-P1 <<>> techfund.comcast.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33385
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;techfund.comcast.com. IN A

;; AUTHORITY SECTION:
comcast.com. 2084 IN SOA dns101.comcast.net. domregtech.comcastonline.com. 2009085610 7200 3600 1209600 3600

;; Query time: 1 msec
;; SERVER: 130.129.5.6#53(130.129.5.6)
;; WHEN: Mon Mar 11 14:40:49 2013
;; MSG SIZE  rcvd: 117

dhcp-16f4:~ jason$ dig techfund.comcast.com @8.8.8.8

; <<>> DiG 9.8.3-P1 <<>> techfund.comcast.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46171
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;techfund.comcast.com. IN A

;; ANSWER SECTION:
techfund.comcast.com. 2581 IN CNAME grants.g.comcast.net.
grants.g.comcast.net. 15 IN A 69.252.208.135

;; Query time: 23 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Mar 11 14:41:00 2013
;; MSG SIZE  rcvd: 88

Change history (4)

comment:1 Changed 5 years ago by llynch@…

Component: incomingother
Owner: changed from llynch@… to bzeeb+ietf@…
Status: newassigned

comment:2 Changed 5 years ago by Jason Livingood

Seems to be working now. Maybe propagation delay...

comment:3 Changed 5 years ago by jim@…

Resolution: fixed
Status: assignedclosed

I cleared the cache and all is well.

Resolving.

  • Jim

comment:4 Changed 5 weeks ago by Rick Alfvin

Milestone: ietf-86ietf-086

Milestone renamed

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