WHM/cPanel installiation and first login
<official cPanel install guide>
http://docs.cpanel.net/twiki/bin/view/AllDocumentation/InstallationGuide/WebHome
After you have installed cPanel you should login to WHM/cPanel using link like this:
https://<your_server_ip>:2087
For login you should use linux system username with password. Sure it can be root credentials.
After you have purchased license for your cpanel ip you should run next command to apply license:
/usr/local/cpanel/cpkeyclt
For sure you can restart cPanel service with next command:
service cPanel restart
Manage URLS:
https://<your_server_ip>:2083 or https://<your_server_ip>/cpanel
https://<your_server_ip>:2096 or https://<your_server_ip>/webmail
https://<your_server_ip>:2087 or https://<your_server_ip>/whm
https://<your_server_ip>:2078 or https://<your_server_ip>/webdisk
http://<your_server_ip>:2082 or http://<your_server_ip>/cpanel | non encrypted
http://<your_server_ip>:2095 or http://<your_server_ip>/webmail | non encrypted
http://<your_server_ip>:2086 or http://<your_server_ip>/whm | non encrypted
http://<your_server_ip>:2077 or http://<your_server_ip>/webdisk | non encrypted
If you want to access your website via IP You should adde apache mod_userdir exclusion protection rule for <yourwebsite> (<user>) in WHM.
and after you'll be able to access your website using ip. Example:
http://<ipaddress>/~<username>/