Knock on Ports

A powerful client to manage and run port knocking sequences
AppID:me.impa.knockonports
Author:Alexander Yaburov
License:Apache-2.0
Donation:
InRepoSince:2018-09-11
LastRepoUpdate:2026-02-10
LastAppUpdate:Unknown
LastVersion:2.1.0
Categories:Security
APK source:
Google Play:Check if it's there
icon A utility for executing port knocking sequences to discreetly open access to services protected by firewalls. Configure custom sequences using UDP, TCP, or ICMP packets with support for both IPv4 and IPv6.

Key Features:

• Protocol Flexibility: Create sequences with UDP, TCP, or ICMP packets. Fine-tune parameters including destination ports, inter-packet delays, TTL, Hop Limit, and packet payload data.
• Automation & Integration: Automatically launch applications (e.g., SSH clients) or open URLs upon a successful knock. Supports integration with other tools via a custom URI scheme for advanced automation.
• Dual-Stack Support: Full compatibility with IPv4 and IPv6 networks.
• Quick Access: Utilize home screen shortcuts and a widget for immediate execution of configured sequences.
• Customization: Adjust the interface with dynamic color themes (Android 12+), custom accents, and light/dark modes. Includes options for improved contrast.
• Configuration Management: Export and import your knocking sequences for backup or transfer.
• No Ads, Open Source: A free, transparent application focused on privacy and user control.

WhatsNew:

• Wear OS support (GMS version only)
• Extended progress information in notifications
• Bugfixes

Download Metadata Source Issues
01_sequence_list.png 02_sequence_edit_basic.png 03_sequence_edit_advanced.png 04_sequence_automate.png 05_settings.png
While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device.

Packages

Version 2.1.0 (2026-02-10) no RB details available help icon

Android Versions:
  • Target: 16.0
  • MinVer: 7.0
  • ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

Download (8.9 M)

Version 2.0.15-beta01 (2026-01-28) no RB details available help icon

Version 2.0.14 (2026-01-26) no RB details available help icon