I’ve setup knot-resolver and it working for the best part. However, I’ve found that a
specific external domain that is important to us isn’t able to resolve successfully. I’m
not sure if there might be other domain with the same problem. Any suggestions would be
awesome.
“MTN.com”
[root@localhost ~]# whois 
mtn.com
   Domain Name: 
MTN.COM
   Registry Domain ID: 63727_DOMAIN_COM-VRSN
   Registrar WHOIS Server: 
whois.lexsynergy.com
   Registrar URL: 
http://www.lexsynergy.com
   Updated Date: 2020-01-21T23:41:38Z
   Creation Date: 1993-02-19T05:00:00Z
   Registry Expiry Date: 2021-02-20T05:00:00Z
   Registrar: LEXSYNERGY LIMITED
   Registrar IANA ID: 1466
   Registrar Abuse Contact Email: abuse(a)lexsynergy.com
   Registrar Abuse Contact Phone: +442031370459
   Domain Status: clientDeleteProhibited 
https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientTransferProhibited 
https://icann.org/epp#clientTransferProhibited
   Domain Status: clientUpdateProhibited 
https://icann.org/epp#clientUpdateProhibited
   Name Server: 
NS1.IAFRICA.COM
   Name Server: 
NS2.IAFRICA.COM
   DNSSEC: unsigned
   URL of the ICANN Whois I
[root@localhost ~]#  dig 
mtn.com
; <<>> DiG 9.11.13-RedHat-9.11.13-6.el8_2.1 <<>> 
mtn.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 44242
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;mtn.com.                       IN      A
;; Query time: 2810 msec
;; SERVER: 172.24.5.131#53(172.24.5.131)
;; WHEN: Sun Nov 15 06:53:23 EET 2020
;; MSG SIZE  rcvd: 36
[root@localhost ~]#
[root@localhost ~]#  dig @8.8.8.8 
mtn.com
; <<>> DiG 9.11.13-RedHat-9.11.13-6.el8_2.1 <<>> @8.8.8.8 
mtn.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21571
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mtn.com.                       IN      A
;; ANSWER SECTION:
mtn.com.                1389    IN      A       192.0.66.2
;; Query time: 64 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Nov 15 06:54:18 EET 2020
;; MSG SIZE  rcvd: 52
[root@localhost ~]#
Rrds,
Mike