Knock on Ports

Knock on Ports

A powerful client to manage and run port knocking sequences

Alexander Yaburov Security

Download (8.1 MB)

Screenshots

Screenshot of Knock on Ports Screenshot of Knock on Ports Screenshot of Knock on Ports Screenshot of Knock on Ports Screenshot of Knock on Ports Screenshot of Knock on Ports Screenshot of Knock on Ports

Description

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.

What’s new (2.1.10)

• New language localization: Ukrainian (credit to @varrkan82)
• New language localization: Portuguese (credit to @ssantos)

Versions

Version Date Size Requires Android Download
2.1.10 current
687c38eae29852e1…
 2026-06-12 8.1 MB API 24
2.1.9
95319b71aac1aaee…
 2026-05-27 8.1 MB API 24
2.1.6
83f104e8f79800c6…
 2026-05-10 8.1 MB API 24

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Network stateCheck whether and how the device is connected.
  • Internet accessSend and receive data over the internet.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • NotificationsShow notifications.
  • BiometricsUnlock with fingerprint or face.
  • FingerprintUnlock with a fingerprint.
  • Prevent sleepingKeep the device from going to sleep.
  • Run at startupStart automatically after the device is switched on.
Show 1 more permissions
  • knockonports.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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