Intermittent issues resolving "labor.upload.akamai.com"

[Bhangui, Sandeep - BLS CTR]

Hi

We are running ISC DNS Bind Version 9.18.10 ( will soon be moving to 9.18.11) on our Linux Servers.

DNS resolution in general seems to work just fine as expected.

It seems we have intermittent issues resolving "labor.upload.akamai.com" and then some scripts fail. It is clear that the failure of the script is due to DNS name lookup.

Not sure if this is an issue that needs to be looked up at our end ( since DNS as such is working just fine for all the rest of the name resolution) or things are not configured properly at other end as far as how this DNS record is published and due to which I see the behavior of intermittent dns name lookup failure.

Any pointers would be appreciated.

Thanks
Sandeep

dig labor.upload.akamai.com

; <<>> DiG 9.18.10 <<>> labor.upload.akamai.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 51211
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 17e14f79ba23179d0100000063dc4895fbcf47353a31763c (good)
;; QUESTION SECTION:
;labor.upload.akamai.com.       IN      A

;; Query time: 1203 msec
;; SERVER: 127.0.0.1#53(127.0.0.1) (UDP)
;; WHEN: Thu Feb 02 18:34:45 EST 2023
;; MSG SIZE  rcvd: 80


But if I point to a public DNS server like VZ or google I seem to resolve it fine all the time.

dig @198.6.1.1 labor.upload.akamai.com

; <<>> DiG 9.18.10 <<>> @198.6.1.1 labor.upload.akamai.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43891
;; flags: qr rd ra; QUERY: 1, ANSWER: 10, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;labor.upload.akamai.com.       IN      A

;; ANSWER SECTION:
labor.upload.akamai.com. 300    IN      CNAME   labor.c-ftp.upload.akamai.com.
labor.c-ftp.upload.akamai.com. 900 IN   CNAME   r33674-33729.neards.1.cftp.e.stor.lb.akamai.net.
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.137
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.149
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.144
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.143
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.142
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.148
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.139
r33674-33729.neards.1.cftp.e.stor.lb.akamai.net. 23 IN A 23.200.4.146

;; Query time: 202 msec
;; SERVER: 198.6.1.1#53(198.6.1.1) (UDP)
;; WHEN: Thu Feb 02 18:35:50 EST 2023
;; MSG SIZE  rcvd: 267