October 18, 2016

How to Secure Network Services Using TCP Wrappers in Linux

In this article we will explain what TCP wrappers are and how to configure them to restrict access to network services running on a Linux server. Before we start, however, we must clarify that the use of TCP wrappers does not eliminate the need for a properly configured firewall.

In this regard, you can think of this tool as a host-based access control list, and not as the ultimate security measure for your system. By using a firewall and TCP wrappers, instead of favoring one over the other, you will make sure that your server is not left with a single point of failure.

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