this post was submitted on 29 Apr 2025
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I use Zip Bombs to Protect my Server (idiallo.com)
submitted 3 weeks ago by some_guy@lemmy.sdf.org to c/technology@lemmy.world
104 comments fedilink hide all child comments
 

The one-liner:

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

This is brilliant.

(page 3) 5 comments
sorted by: hot top controversial new old
[–] comador@lemmy.world 25 points 3 weeks ago* (last edited 3 weeks ago)

Funny part is many of us crusty old sysadmins were using derivatives of this decades ago to test RAID-5/6 sequencial reads and write speeds.

[–] melroy@kbin.melroy.org 11 points 3 weeks ago (1 children)

let me try..

[–] melroy@kbin.melroy.org 12 points 3 weeks ago (1 children)

Looks fine to me. Only 1 CPU core I think was 100%.

10+0 records in
10+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 28,0695 s, 383 MB/s
[–] melroy@kbin.melroy.org 11 points 3 weeks ago (1 children)

ow.. now the idea is to unzip it right?

nice idea:

if (ipIsBlackListed() || isMalicious()) {
    header("Content-Encoding: deflate, gzip");
    header("Content-Length: "+ filesize(ZIP_BOMB_FILE_10G)); // 10 MB
    readfile(ZIP_BOMB_FILE_10G);
    exit;
}
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