Knocking
From Wikipedia, the free encyclopedia
Knocking may refer to:
- Knocking, Austria, a city, subdivision of Erlauf in Austria
- Knocking (documentary), a documentary about Jehovah's Witnesses
Knocking may also call to mind:
- Engine knocking, or the sound accompanying automotive combustion malfunction
- Port knocking, a covert method of opening a port on a server
[edit] See also
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