Knock on Ports

A utility for performing a port knocking sequence that opens access to firewall protected services without attracting attention. Supports custom knocking sequences using UDP, TCP or ICMP packets, and is compatible with both IPv4 and IPv6 networks.

Main functions:

·Flexible protocol support: Support the use of UDP, TCP or ICMP packets to create knocking sequences, and fine-tune parameters such as target port, packet sending interval, TTL, hop limit, and payload. ·Automation and integration: Automatically launch an application (such as an SSH client) or open the specified URL after a successful knock. Support deep integration with other tools through custom URI protocols to achieve advanced automated operations. ·Dual-stack network compatibility: Fully supports IPv4 and IPv6 network environments. ·Shortcuts: You can execute the configured knocking sequence with one click through home screen shortcuts or desktop widgets. ·Personalized customization: Support dynamic color themes (Android 12 +), custom accent colors and light/dark mode switching, and provide high-contrast display options. ·Configuration management: Support export and import of knocking sequences to facilitate backup or migration of configurations. ·Open source and free: No advertising, completely open source, with privacy protection and user autonomy as the core design concepts.