All the levels in Natas are about web.

The URL for each level is http://natas[level number].natas.labs.overthewire.org, and the username is natas[level number]. All passwords are also stored in /etc/natas_webpass/. E.g. the password for natas5 is stored in the file /etc/natas_webpass/natas5 and only readable by natas4 and natas5.

Steganography

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MISC

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Crypto

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Binary RE

In Plain Text