EPISODE · Jul 29, 2026 · 15 MIN

Digital chmod 755/644

from CyberSecurity & DevSecOps Expert: Develop, PenTest, and Deploy Secure Applications · host Ilaria Digital School

**Theoretical Recap** Linux permissions are expressed numerically using an octal (base-8) system. Each file or directory has three permission groups: owner (user), group, and others. Each group is assigned a value based on three binary bits: read (r ...

Episode metadata supplied by the publisher feed · Published Jul 29, 2026

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Digital chmod 755/644

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