559
I use Zip Bombs to Protect my Server (idiallo.com)
submitted 5 months ago by some_guy@lemmy.sdf.org to c/technology@lemmy.world
98 comments fedilink hide all child comments

The one-liner:

dd if=/dev/zero bs=1G count=10 | gzip -c > 10GB.gz

This is brilliant.

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[-] airgapped@piefed.social 14 points 5 months ago

Setting a random SSH port and limiting it to 3/min saw failed login attempts fall by 99% and jailed IPs fall to 0.

[-] WFloyd@lemmy.world 4 points 5 months ago

I've found great success using a hardened ssh config with a limited set of supported Cyphers/MACs/KexAlgorithms. Nothing ever gets far enough to even trigger fail2ban. Then of course it's key only login from there.

this post was submitted on 29 Apr 2025
559 points (100.0% liked)

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