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Port-knocking client with multiple hosts support

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nokku

Port-knocking client. Supports multiple hosts knocking.

Usage

nokku [OPTIONS] HOSTNAME[:PORT] [PROTO] [pause] [HOSTNAME2:]PORT2 [pause] [[HOSTNAME3:]PORT3 [[HOSTNAME4:]PORT4 [...]]]

Supply a hostname first, optionally with a port in the form of host:port. Then goes any number of ports. Supply another hostname option to switch the target address.

Insert tcp (default) or udp command to switch to the corresponding protocol.

To add a pause to the sequence use pause (defaults to 1 second).

Options

Option Meaning Example
-d or --delay Sets the delay duration between connections nokku -d 2 192.168.0.1 13652 12441 57936
-p or --pause Sets the pause duration nokku --pause 3 192.168.0.1 13652 pause 12441 pause pause 57936

Examples

Same host, several ports:

nokku 192.168.251.34 31785 23077 46254
nokku 192.168.251.34:31785 23077 46254

Multiple hosts, several ports on each:

nokku 192.168.251.1 20100 20123 192.168.251.2 14500 14600
nokku 192.168.251.1:20100 20123 192.168.251.2:14500 14600

Multiple hosts, one port on each:

nokku 192.168.251.1 20100 192.168.251.2 14500 192.168.251.3 33500
nokku 192.168.251.1:20100 192.168.251.2:14500 192.168.251.3:33500

Multiple hosts, same port:

nokku 192.168.251.1 44555 192.168.251.2 192.168.251.3
nokku 192.168.251.1:44555 192.168.251.2 192.168.251.3

Switch to UDP and back to TCP:

nokku 192.168.251.34 10100 udp 10200 tcp 10300

All UDP:

nokku udp 192.168.251.1 20100 20123 192.168.251.2 14500 14600

Add pauses:

nokku udp 192.168.251.1 20100 pause 20123 pause pause 192.168.251.2 14500 14600