EnglishFrenchSpanish

OnWorks favicon

knock - Online in the Cloud

Run knock in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command knock that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


knock - port-knock client

SYNOPSIS


knock [options] <host> <port[:proto]> [port[:proto]] ...

DESCRIPTION


knock is a port-knock client. It sends TCP/UDP packets to each specified port on host,
creating a special knock sequence on the listening server (see the knockd manpage for more
info on this).

OPTIONS


-u, --udp
Make all port hits use UDP (default is TCP). If you want each port to use a
different protocol (TCP or UDP), then you can specify the protocol on a per-port
basis. See the example below.

-v, --verbose
Output verbose status messages.

-V, --version
Display the version.

-h, --help
Syntax help.

EXAMPLES


knock myserver.example.com 123:tcp 456:udp 789:tcp
knock -u myserver.example.com 8284 4721 18592 42912

Use knock online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Amidst
    Amidst
    Amidst or Advanced Minecraft Interface
    and Data/Structure Tracking is a tool to
    display an overview of a Minecraft
    world, without actually creating it. It
    can ...
    Download Amidst
  • 2
    MSYS2
    MSYS2
    MSYS2 is a collection of tools and
    libraries providing you with an
    easy-to-use environment for building,
    installing and running native Windows
    software. It con...
    Download MSYS2
  • 3
    libjpeg-turbo
    libjpeg-turbo
    libjpeg-turbo is a JPEG image codec
    that uses SIMD instructions (MMX, SSE2,
    NEON, AltiVec) to accelerate baseline
    JPEG compression and decompression on
    x86, x8...
    Download libjpeg-turbo
  • 4
    Xtreme Download Manager
    Xtreme Download Manager
    The project has a new home now:
    https://xtremedownloadmanager.com/ For
    developers:
    https://github.com/subhra74/xdm Xtreme
    Download Manager is a powerful tool t...
    Download Xtreme Download Manager
  • 5
    TTGO VGA32 Lite
    TTGO VGA32 Lite
    Features:4:3 and 16:9 low resolution
    VGA outputPS/2 keyboard and mouse
    inputText-based user interface (TUI)
    with dialog managerPartial Unicode
    supportSlave dis...
    Download TTGO VGA32 Lite
  • 6
    Clover EFI bootloader
    Clover EFI bootloader
    Project has moved to
    https://github.com/CloverHackyColor/CloverBootloader..
    Features:Boot macOS, Windows, and Linux
    in UEFI or legacy mode on Mac or PC with
    UE...
    Download Clover EFI bootloader
  • More »

Linux commands

Ad