Server Hardening is a process that secures a system by reducing its surface of vulnerability, the surface area that is vulnerable to attacks from unauthorized users. The surface of vulnerability is larger when a system performs more functions. Changing default passwords regularly, removing unnecessary software, unused usernames and logins and disabling unnecessary or unused services are some of the ways to reduce the surface of vulnerability.
Server hardening ensures that server security is enhanced through various means. The soft surface or material of the website and its data is changed to make the surface stronger and resistant to damages and attacks.
Most of the applications and system software used currently are intended for online use and for internet connections. Most of them are attacked several thousand times every hour. Server hardening is a well established practice and a part of website development that is done within the organization by a special team or is outsourced to a trusted server hardening agency.
The default configurations of most of the operating systems do not come with security as the primary function. The operating systems mostly focus on the functionality, ease of use and communicative functions of the website. Sophisticated server hardening policies for all servers in your organization is very important to increase server and network security.