How to hide the user interface elements related to mail services from the Control Panel:
1. In the Server Administration Panel, go to Settings > Mail Server Settings (in the Mail group
2. Clear the Enable mail management functions in Panel checkbox.
3. Click OK.
Alternately, you can hide these elements by using the server_pref command line utility:
On Linux systems
/usr/local/psa/bin/server_pref -u -disable-mail-ui true
If you need to restore the mail management controls, you can do so either by going to Server Administration Panel > Settings > Mail Server Settings, and selecting the Enable mail management functions in Panel checkbox, or by using the command line utility:
On Linux systems
/usr/local/psa/bin/server_pref -u -disable-mail-ui false
Reference: http://parallels.net/
How can I hide information_schema database from phpMyAdmin?
By default, phpMyAdmin shows all databases available to a user. So, in addition to the databases that belong to the user, the information_schema database is also visible to them.
To hide the information_schema database from phpMyAdmin on a particular MySQL logical server, add the following line to the phpMyAdmin config.inc.php file:
$cfg['Servers'][$i]['hide_db'] = ‘information_schema’;
Please note that this affects only phpMyAdmin, and users will still be able to use the information_schema database from other applications (for example, from the mysql command-line client).
Hide apache web server version
It is possible to hide apache web server version and other information. This is done for security reasons. It is not a good idea to broadcast the version of the software that you are running on the server. You should have noticed the following details(or something similar) when an error page is displayed.
Apache/2.2.9 (Unix) mod_ssl/2.2.9 OpenSSL/0.9.8b mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.2.6 Server at XXX.com Port 80
Add/Edit the two entries in the apache configuration file(httpd.conf)
ServerSignature Off
ServerTokens Prod
ServerSignature Off : tells apache not to display the server version on error pages, or other pages it generates.
ServerTokens Prod : tells apache to only return Apache in the Server header, returned on every page request.
Restart the webserver.