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In computer networking, port knocking is a method of externally opening ports on a firewall by generating a connection attempt on a set of prespecified closed ports. Once a correct sequence of connection attempts is received, the firewall rules are dynamically modified to allow the host which sent the connection attempts to connect over specific port(s).
Door knocker, item of door furniture that allows people outside to alert those inside; Knocker-up, profession in England and Ireland before alarm clocks were affordable or reliable; Port knocker, to externally open ports on a firewall; Sanctuary Knocker, ornamental knocker on the door of a cathedral
Pork-knocking is extremely hazardous and deaths are not uncommon. Miners were crushed under falling trees, earth, and rock. [7] Drowning often occurs as mining operations are typically based on rivers to capture gold and diamond-laden sediments. The remoteness and wild terrain are a challenge for receiving emergency medical care. [3]
Ports of Call, or Escales, a 1924 orchestral suite by Jacques Ibert "Port of Call", a 1996 song by Porter Ricks from Biokinetics Port of Call , a 2000 album by Silje Nergaard
Knocking (2021 film), a Swedish thriller film "Knockin'" (song), by Spanish band Double Vision (1995) 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
The Knocker, Knacker, or Tommyknocker (US) is a mythical, subterranean, gnome-like creature in Cornish and Devon folklore. The Welsh counterpart is the coblyn. It is closely related to the Irish leprechaun, Kentish kloker and the English and Scottish brownie. The Cornish describe the creature as a little person 2 ft 0 in (0.61 m) tall, with a ...
"Knackered" meaning tired, exhausted or broken in British and Irish slang is commonly used in Australia, Ireland, Newfoundland, New Zealand, and the United Kingdom. [ citation needed ] The term "knacker drinking" refers to the practice of consuming alcohol in the open, e.g. in a field or a park, or by a roadside or canal; the drink is typically ...
A knocker-up or knocker-upper was a member of a profession [1] in the Netherlands, Britain, Ireland, and some other countries that started during, and lasted well into, the Industrial Revolution, when alarm clocks were neither cheap nor reliable. A knocker-up's job was to rouse sleeping people so they could get to work on time.