Hi created Instance on amazon cloud i got cpanel link 52.74.7.161/cgi-sys/defaultwebpage.cgi how i can log in my whm panel anyone who
Are you sure you installed cpanel? How much time it took? I have never used amazon and am not sure if they offer centos.
The only thing I can think of is to ensure that your firewall is not blocking that port by default and make sure the service is running. I thought WHM runs on ports 2086 and 2087 with cPanel on ports 2082 and 2083. I found this, I don't know if it can help you: http://robjscott.com/how-to-set-up-cpanel-whm-on-amazon-web-services/
only 30 minute. its done idnt open public port of ip now its fine ,,,, but i will use ajenti instead of cpanel. reason cpanel is cost for me and ajenti is free open source..