I checked web.log and found below error repeating
Line 66634: ERROR in ch.qos.logback.classic.pattern.SyslogStartConverter@612fc6eb - Could not determine local host name java.net.UnknownHostException: home-hcx-01.home.local: home-hcx-01.home.local: Temporary failure in name resolution
I found that in /etc/resolv.conf the nameserver entry was missing
I added the name server and restarted web and app engine service and then the port 9443 came up
but I then rebooted my appliance to verify if it retains the setting and it did not
DNS setting is lost now -- post reboot and now the port 9443 is not responding again
I have assigned static IP to this setting and then rebooted the server but then too /etc/resolv.conf does not retain the nameserver setting
any suggestion how can /etc/resolv.conf retain the nameserver on reboot?