Knocking
Appearance
knocking- it may be prossead in patrol engian.
Look up knocking in Wiktionary, the free dictionary.
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