ABSTRACT
The server application itself might contain security vulnerabilities. The firewalls are first line of defense, and a system serving as a firewall is critical to the security of entire company. The web servers are the weakest link in many environments. The important point regarding Web server security is to ensure that people delete all sample scripts and sites that are installed with people Web server. The Internet Information Server (IIS) Security Planning Tool helps deploy IIS with security that is appropriate for the server’s role in environment. The apache is used on a large percentage of Web servers on the Internet. The corporate communications would cease if e-mail server is compromised; e–mail has become the main method of communication for coworkers and business partners. Sendmail is used by many organizations as their mail server. A user authenticates to a Remote Authentication Dial-in User Server server.
