Linux, like any operating system, is only as secure as you make it. Any computer that is connected to a network, and especially the Internet, is susceptible to being compromised. Security is an issue that affects everyone from home users . . .
Linux, like any operating system, is only as secure as you make it. Any computer that is connected to a network, and especially the Internet, is susceptible to being compromised. Security is an issue that affects everyone from home users who may have credit card information and such to businesses that may have business plans and product design specifications stored on these systems. TCP-Wrappers is a software package available for Linux that greatly simplifies securing these systems. Unix networking is based on the concept of services.

A Unix server provides a "service" to the rest of the network to which it is connected. These services, such as FTP or HTTP, then provide the functionality required. Linux being derived from Unix provides services in the same manner as other traditional Unix systems. There is a series of events that occurs to actually provide a network service, and understanding this series of events allows you to secure these services to prevent unauthorized access. In Linux, like Unix, this series of events is very well defined, and TCP-Wrappers is implemented to work within the structure of these events to enhance security.

The link for this article located at Linux.com., Scott Nipp --   is no longer available.