How to block network traffic by country on Linux | Linux Today

How to block network traffic by country on Linux

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Dec 14, 2015

As a system admin who maintains production Linux servers, there are circumstances where you need to block network traffic based on geographic locations.

For example, you are experiencing denial-of-service attacks mostly originating from IP addresses registered with a particular country. You want to block SSH logins from unknown foreign countries for security reasons. Your company has a distribution right to online videos, which requires it to legally stream to particular countries only.

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