ou can login to cPanel by :

http://cpanel.yourdomain.com

http://yourdomain.com:2082

http://yourdomain.com/cpanel

https://yourdomain.com:2083 [ SSL ]

You can login to WHM Panel by :

http://whm.yourdomain.com

http://yourdomain.com:2086

http://yourdomain.com/whm

https://yourdomain.com:2087 [ SSL ]

You can login to WEBMAIL by :

http://yourdomain.com:2095

https://yourdomain.com:2096

http://yourdomain.com/webmail

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You can also replace yourdomain.com with your server IP too for login !