Observed arrival · 2026-10-01

KnockKnock PingPort puts port knocking on an iPhone

knockknockpingport.com Visit website

Editorial interest 76/100 Selection signal · not a rating of the site

An iPhone app for sending configured port-knocking or ping-knocking sequences to a server.

Landing page captured for the 2026-10-01 issue.

For: iPhone users administering servers with configured knock rules
Worth noticing: The app confirms packets left the phone; knocking produces no reply, so it cannot verify that the port opened.

Field notes

The page describes two packet-based methods: ordered TCP/UDP port attempts and ICMP echo requests with agreed sizes. Users must configure a corresponding rule on their server or router; the app handles only the sending side. It says saved server details and sequences remain on the iPhone unless exported, and notes that the protocol gives no reply confirming the port opened.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

◎NicheUnusually specific use

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