Issue :

How can you access cPanel like, say, http://domainname.com/xyz ? This is for security purposes.

Solution :

This can be done but not recommended as it would not be of much effect security-wise.
Even if you change it, cPanel/WHM would still run on the standard ports (2082/2083 & 2086/2087) which is known to everyone. If you have a valid cPanel license then you can contact their support and get the ports changed. This coupled with a strong password (change regularly) should be good enough.

However, coming back to the original question, you can achieve it in the following way :

Go to /usr/local/apache/conf/httpd.conf
Find the following line :

ScriptAliasMatch ^/?cpanel/?$ /usr/local/cpanel/cgi-sys/redirect.cgi

Comment it out by adding a ‘#’ at the beginning and add the following line below that line :

ScriptAliasMatch ^/?xyz/?$ /usr/local/cpanel/cgi-sys/redirect.cgi

Issue :

Need to redirect https://domain.com to https://www.domain.com for SSL purposes.

Solution :

Use the following code in the htaccess file under the public_html folder for the concerned domain :

RewriteEngine On
RewriteCond %{HTTP_HOST} ^domain.com [NC]
RewriteRule ^(.*)$ https://www.domain.com/$1 [L,R=301]

Issue :

How to point a parked domain to a sub-directory of the main domain without any change in the URL ?

Fix :

This is like making the parked domain function like an add-on domain.
Assuming that the parked domain name is abc.com and the corresponding folder under the main domain is ‘abc’ .This can be achieved by putting the following in the .htaccess file for the main domain :

RewriteEngine On
Options +FollowSymlinks
RewriteBase /
RewriteCond %{HTTP_HOST} abc.com
RewriteCond %{REQUEST_URI} !abc/
RewriteRule ^(.*)$ abc/$1 [L]

Issue :

While some construction is going on the site, all pages on the website should go to the index page.

Solution :

This can be easily achieved by using the following code in your .htaccess file :

< IfModule mod_rewrite.c >
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.html [L]
< /IfModule >

Issue :

Regardless of somebody accessing the site with or without the ‘www’ , it should always go to http://domain.com

Solution :

Use the following htaccess code :

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www.domain.com
RewriteRule ^(.*) http://domain.com/$1 [R]

Issue :

The old domain ( with and without ‘www’ ) needs to be forwarded to a sub-folder of the new domain.

Solution :

Use the following htaccess code :

RewriteEngine on
RewriteCond %{HTTP_HOST} ^olddomain\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.olddomain\.com$
RewriteRule ^(.*)$ http://newdomain.com/folder/$1 [R=permanent,R]

Issue :

When someone tries to access the site through the insecure URL (http) , it should redirect ( to https ) automatically.

Fix :

This can be easily achieved by putting the following code in the .htaccess file under ‘public_html’ folder :

RewriteEngine On
RewriteCond %{SERVER_PORT} !^443$
RewriteRule ^(.*)$ https://www.yourdomainname.tld/$1 [L,R]

(Assuming that you have SSL installed on the domain )

Issue :

webmail.domain.tld does not work.

Fix :

1. Create an ‘A’ record for the sub-domain ‘webmail’ in the DNS zone file. It should look like :

domain.com. IN A XX.XX.XXX.XXX
localhost.domain.com. IN A 127.0.0.1
domain.com. IN MX 0 domain.com.
mail IN CNAME domain.com.
www IN CNAME domain.com.
ftp IN A XX.XX.XXX.XXX
cpanel IN XX.XX.XXX.XXX
whm IN A XX.XX.XXX.XXX
webmail IN A XX.XX.XXX.XXX
webdisk IN A XX.XX.XXX.XXX

2. Put the following code inside .htaccess in the sub-domain folder ( virtual sub-domain which doesn’t have an entry in httpd.conf

RewriteEngine on
RewriteCond %{HTTP_HOST} ^webmail.domain.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.webmail.domain.com$
RewriteRule ^.*$ “http\:\/\/domain\.com\/webmail” [R=301,L]

To redirect a domain to its own sub-folder,
use the following code in your .htaccess file :

RewriteEngine On
RewriteCond %{HTTP_HOST}%{REQUEST_URI} ^present site.com/$ [NC,OR]
RewriteCond %{HTTP_HOST}%{REQUEST_URI} ^www.present site.com/$ [NC]
RewriteRule ^(.*)$ http://www.present site.com/sub-folder/$1 [r=301,nc]

Issue :

While accessing the subfolder of an addon domain using
httpd://www.addondomain.com/subfolder
the URL changes to
httpd://www.subdomain.maindomain.com/subfolder
but at the same time,
httpd://www.addondomain.com/subfolder/ (the one with trailing slash) works fine.

Fix :

This issue can be fixed by changing the ServerName entry in httpd.conf.

Change
ServerName subdomain.maindomain.com
to
ServerName addondomain.com