🔒 Port knocking 🔒 Port knocking

🔒 Port knocking

Dmitry Machulo Dmitry Machulo
Port knocking is a method of externally opening ports, which, by default, the firewall keeps closed, by generating a connection attempt on a set of pre-specified closed ports.

Termius for iOS and Android provides a port knocking client supporting both UDP / TCP protocols and inter-packet delays.

☝ī¸ Port knocking is currently available in iOS and Android only.

To send a knock sequence in Termius, you'll need to:

  1. Create a port knocking type of snippet (see below).
  2. Run it from the Snippets screen.

⚠ī¸ You must have a port knock daemon running on your server to be able to use this feature.

ℹī¸ Port knocking is a premium feature.

Create a Port Knocking Snippet

  1. Open the Snippets screen.
  2. Tap + and then Port Knocking Snippet.
  3. (Optional) In the Name field, specify the name of the snippet.
  4. (Optional) In the Default Destination field, specify a host that will be receiving the knock sequence.
  5. In the Knock Sequence section, create a knock sequence. Each item in the sequence is either a TCP or UPD packet sent to a required port, or a delay (pause).

👉 Tap and hold an item in the sequence to re-arrange it.


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