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suricata/doc/userguide/rules/bypass-keyword.rst

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Bypass Keyword
==============
Suricata has a ``bypass`` keyword that can be used in signatures to exclude traffic from further evaluation.
The ``bypass`` keyword is useful in cases where there is a large flow expected (e.g. Netflix, Spotify, Youtube).
The ``bypass`` keyword is considered a post-match keyword.
bypass
------
Bypass a flow on matching http traffic.
Example::
alert http any any -> any any (content:"suricata.io"; \
http_host; bypass; sid:10001; rev:1;)