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why should a rule allowing traffic to localhost exist?

When the default policy for the netfilter INPUT chain is set to DROP, why should a rule allowing traffic to localhost exist?

PrepAway - Latest Free Exam Questions & Answers

A.
All traffic to localhost must always be allowed.

B.
It doesn’t matter; netfilter never affects packets addressed to localhost.

C.
Some applications use the localhost interface to communicate with other applications.

D.
syslogd receives messages on localhost.


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