Self Singed certificate creating "Unknown CA issue"

[preethi teekaraman <preethi.kavi17@xxxxxxxxx>]

Hi Openssl Users,

I'm using different versions of openssl from 2014 to 2020 to create a self signed certificate.

reference link for cert generation :  https://gist.github.com/fntlnz/cf14feb5a46b2eda428e000157447309

I could see "unknown CA "  from client side while exchanging key between server and client. 

Here I'm using nginx server (load balancer) as server where i'm loading server cert and key and root cert in device. 

Any better suggestion or proper commands to create a self signed certificate.

Regards,

Preethi Teekaraman.