dpsifoo
Contributor
Contributor

vCenter migration claims there are DNS issues

Hello,

I have this issue when migrating a 6.0 vCenter to 6.5:

Error

Host name vS-vCenter1.dpsi.jp is not DNS resolvable, but matches the machine certificates. If you do not configure a valid DNS resolvable hostname mapping, then you might not be able to connect to the vCSA afterwards

Resolution

Either update appliance /etc/hosts or /etc/resolv.conf file to properly access DNS servers or update appliance DNS servers with the proper host name mapping. To check if DNS server has record about local host name, execute `dig vS-vCenter1.dpsi.jp +short` locally on the appliance, or `nslookup vS-vCenter1.dpsi.jp` on a windows machine.

The commands suggested work as expected, and DNS records all resolve correctly.

What could the issue be?

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8 Replies
rnandula
VMware Employee
VMware Employee

Contents are not visible in the provided error and resolution screenshots. Please resend the screenshots.

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dpsifoo
Contributor
Contributor

There are no screenshots in my post but if you insist its the same as the above post...

Screenshot_525.png

Screenshot_526.png

Screenshot_527.png

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sysjno
Contributor
Contributor

On vCSA, can you 'dig -x 192.168.1.11'?

Are all hosts involved querying the same DNS server(s)?  If you have more than one, 'dig @192.168.2.2 -x 192.168.1.11', for example.  Make sure everything resolves forward and back everywhere.

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dpsifoo
Contributor
Contributor

root@localhost [ ~ ]# dig -x 192.168.1.11

; <<>> DiG 9.10.4-P1 <<>> -x 192.168.1.11

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59330

;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 4096

;; QUESTION SECTION:

;11.1.168.192.in-addr.arpa.     IN      PTR

;; ANSWER SECTION:

11.1.168.192.in-addr.arpa. 3600 IN      PTR     vS-vCenter1.dpsi.jp.

;; Query time: 0 msec

;; SERVER: 192.168.1.1#53(192.168.1.1)

;; WHEN: Mon Nov 28 18:58:34 UTC 2016

;; MSG SIZE  rcvd: 87

Only 1 DNS server which is 192.168.1.1 and it returns the correct results. Not sure why it isn't working.

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dpsifoo
Contributor
Contributor

Bump

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dpsifoo
Contributor
Contributor

rnandula‌ any ideas?

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dpsifoo
Contributor
Contributor

bump

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strangecargo
Contributor
Contributor

I'm having the same issue. Did you ever figure this out?

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