cPHulk software with Cpanel/WHM
cPHulk is a small program that will run in the background of your server to prevent people from using a brute force attack to compromise your machine.
While doing - WHM Initial Setup
To enable and configure cPHulk:
1. Click the Enable cPHulk checkbox.
2. Use the checkboxes to determine:
Whether to extend lockout time for each additional failure past the limit.
Whether you will receive notifications when a brute force attack is detected.
3. You may access cPHulk’s advanced settings by clicking the Configure Advanced Settings checkbox. Using the advanced settings you can:
Specify the number of minutes you would like to block the IP address of a potentially malicious user (in the IP Based Brute Force Protection Period in minutes field).
Specify the number of minutes to lock an account (in the Brute Force Protection in minutes field).
Specify the maximum number of failed authentication attempts allowed by an account (in the Maximum Failures By Account field).
Reference : http://cpanel.net/
mod_userdir:
A feature of Apache that lets visitors view websites on your server by typing your hostname followed by a tilde and the website owner’s username.
Example: http://host.mywebsite.com/~username
Disabling this via the WHM Security Center is desirable, as the bandwidth used when the site is accessed using this method is attributed to the web host’s main domain, skipping bandwidth monitoring systems.
Reference:
Information on mod_userdir, you should visit http://httpd.apache.org/docs/2.0/mod/mod_userdir.html
How to setup Cpanel Dns Cluster’s failure threshold.
This section allows you to specify the number dnsadmin commands that are allowed to fail before a member of your cluster is disabled.
Unresponsive cluster members are disabled in an effort to improve performance.
Global cluster configuration options
If you wish for all of the members of your cluster to remain online at all times, enter 0.
Cpanel recommend setting this value to 10.
Reference : http://cpanel.net/
What is dnsadmin in Cpanel Servers
DnsAdmin is a GPL development project to create a set of programs to manage dns information.
Support is included for bind and djbdns.
dnsadmin is a set of programs that helps manage DNS information.
Reference : http://www.inter7.com/
Limit the number of Rails applications in Cpanel Server
You can limit the number of Rails applications your customers can install.
To do this in WHM, go to Modify an Account, click the domain name you wish to limit, and in the Max Mongrel Instances (Ruby on Rails) box, specify the desired maximum number of applications.