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Knock on Ports

Port knocking client
New in version 1.1.6b
New: Full IPv6 support
Widget: Optional confirmation before knocking
Improved Android 4.0.3 compatibility
Bugfixes
"Knock on Ports" is a port knocking client compatible with knockd, icmpKNOCK and other port knocking servers.

Features:
- UDP/TCP/ICMP sequences
- IPv4 and IPv6 support
- customizable content of UDP and ICMP packets
- ability to start another application after a knock
- Tasker integration
- interpacket delays
- sequence shortcuts
- customizable widget
- data export/import
- free, no ads, open source

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.1.6b (46) suggested Added on 2021-06-05

    This version requires Android 4.0.3 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • run foreground service
      Allows the app to make use of foreground services.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 5.6 MiB PGP Signature | Build Log

  • Version 1.1.6a (45) - Added on 2021-06-01

    This version requires Android 4.0.3 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • run foreground service
      Allows the app to make use of foreground services.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 5.6 MiB PGP Signature | Build Log

  • Version 1.1.6 (44) - Added on 2021-06-01

    This version requires Android 4.0.3 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • run foreground service
      Allows the app to make use of foreground services.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 5.6 MiB PGP Signature | Build Log