Hostname of VCSA 5.5 showing IP Instead of FQDN

[aloksinghericss]

Hi,

I am trying to upgrade vCenter from 5.5 to 6.5 using command line but during precheck my script is showing IP instead FQDN and below warning when I check hostname I see FQDN.

I still no clue what is the reason.

Pre-upgrade check warning: 1. Title: Host name 192.168.xx.xx 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

[aleex42]

Can you resolve the VCSA's hostname correct from your PC in both ways?

Windows:

nslookup vcsa.example.com
nslookup 1.2.3.4

Linux:

dig vcsa.example.com +short
dig -x 1.2.3.4 +short

[aloksinghericss]

Issue resolved when on vCenter 5.5 I updated same system name again and regenerated certificates.