Knocking

Knocking or Knockin or Knockin' may refer to:

Knocking (2006 film), a documentary about Jehovah's Witnesses
Knocking (2021 film), a Swedish thriller film
Engine knocking, or the sound accompanying automotive combustion malfunction
Port knocking, a covert method of opening a port on a server
Roof knocking, a bombing practice of the Israeli Defense Forces
Gene knockin, genetic engineering method
Knockin Castle, castle situated in the village of Knockin on Shropshire between Oswestry and Shrewsbury
Knocking, Austria, a hamlet, subdivision of Erlauf (municipality) in Austria
"Knockin'", a 1995 song by Spanish band Double Vision

See also