I laughed harder than I should have at this:
@Theeo123 It's not wrong. Definitely would not let any packets through.
@sgsax
The ends need to be taped, though. Otherwise the ethernet frames drop on the floor.
@Theeo123

@Theeo123

Darned good advice!

@Theeo123 This is the kind of infrastructure I can get behind.
@Theeo123 I mean, this is fundamentally my oh crud strategy for work.
@Theeo123 cheeky but effective
@Theeo123 the most solid and secure 2-way preset you'll ever have.
@Theeo123 A safe life without the internet? :3

@Theeo123 reminds me of the time I was in a store, and looking at their selection, and they had a brand of like USB cables, and the brand name was:

"Just Wireless!" (tm)

@Theeo123
Tech support caller: I cut where the cord told me to in order to activate the firewall. But now I can’t get online at all.
@jaykass @Theeo123 "I see your problem: you do not use VoIP" ;-)

@Theeo123

some more pixels and the story behind this cable can be found at @BIT

https://www.bit.nl/cut-here-to-activate-firewall-layer-1-firewalls-op-ohm2013/

Cut here to activate firewall | layer-1 firewalls op OHM2013 » BIT

BIT

@robje @Theeo123 @BIT
SNIP - Simple Network Interuption Protocol

Most cable manufacturers can print custom text on an order (above a certain size).

@dec23k @robje @BIT

"SNIP - Simple Network Interruption Protocol"

I love that, may I steal it?

@Theeo123 @robje @BIT
Sure!
I forget where I saw it first, but it was a long time ago.

@robje @BIT

Ahh thanks! I found the image as is elsewhere, I appreciate the source!!

@Theeo123 I used to have a pair of snips that I put a label on that read “emergency layer 1 firewall builder”

@Theeo123 @archeokluit gejat van de site van bit.nl gok ik.
(Kon de landcode niet lezen... 😇)

Klopt dat @BIT ?

@Theeo123 Works reliably and every time and is better than smashing the PC
@Theeo123 Best firewall for IT-Security is manufactured by Knippex. 😂
@Theeo123
Another option:
Cut here at activate airgap.