ServerBuddies Support Blog

Removing Reseller’s Access to Server’s Shared IP in DirectAdmin

As an Admin, you can give Resellers the ability to create User web sites using the Server’s Shared (main) IP address. At this time, you cannot remove this ability through the control panel.

To solve the problem manually, remove the desired IP address from the ip.list file in the Reseller’s DirectAdmin config directory

Reseller’s DirectAdmin config directory

This change will not affect the Reseller’s current Users (if they are using the server’s main IP, they will continue to do so.

Source & credit - http://www.directadmin.com

Shared Libraries

Shared libraries are units of code, such as glibc, which are used by a number of applications and services. Applications utilizing a shared library typically load the shared code when the application is initialized, so any applications using the updated library must be halted and relaunched.
To determine which running applications link against a particular library, use the lsof command as in the following example:

Example