PortKnock

PortKnock 5 is a ground-up rebuild for modern iOS. Your Knocks from PortKnock 4 can be migrated. NEW - Siri & Shortcuts: send any saved Knock by voice or from the Shortcuts app, hear the result, and chain success or failure into other automations. - Post-knock actions: run one or more actions after a knock, in the order you choose. * Launch an app or URL (SSH, Mail, web) * Send a webhook (any HTTP method, custom headers) * Check that a TCP port actually opened * Test any action without sending a knock - Better host handling: knock hosts that resolve to several IPv4 and IPv6 addresses, see the status of each address, and choose the IP version globally or per Knock. - Optional UDP packet payloads. - Data Management: back up your Knocks to a file and restore them on another device or after a reinstall. When importing, preview first, then Keep Both, Replace, or Import New Only. Opening a .portknock file from Files starts the import. - Haptic feedback when knocks are sent, succeed, or fail, with a separate setting for Siri and Shortcuts. - Redesigned interface: custom symbols and colors for each Knock, search, duplicate, reorder, hex or decimal port display, and a live packet-by-packet progress view. - Dark mode - DrayTek TOTP knocks: scan a QR code or type in your secret, and PortKnock appends the rotating one-time password to your knock sequence. CHANGED - Requires iOS 26 or later. - Network History is no longer recorded, and your old log does not carry over. - The in-app Password Lock has been removed. Use iOS app locking instead. - TOTP secret keys are stored in the Keychain and are NOT included in backups or exports. After a restore you will be reminded to re-enter them. Questions or feedback? Email support@sungheroes.com. Thank you for your patience and your support over the years!