Security: Safe
chmod 600 — rw-------
Owner can read and write (rw-). Group and Others have ZERO access (---).
Live Interactive Permission Matrix
Linux chmod Calculator & Generator
Octal Value
600
Symbolic
rw-------
Quick Presets:
Owner (User)
The file creator
Group
Team or service account
Public (Others)
All other system users
Security Assessment
Status: Safe
Target:
chmod 600 deploy.shchmod -R 600 /var/www/deploy.shInteractive Permission Matrix (rwx)
| Role | Read (r - 4) | Write (w - 2) | Execute (x - 1) | Octal Total |
|---|---|---|---|---|
| Owner (User) | 6 | |||
| Group | 0 | |||
| Others (Public) | 0 |
Copyable chmod 600 Commands
Apply to Single File
chmod 600 target_fileApply Recursively to Directory
chmod -R 600 /path/to/folderOnly Apply to Directories (find)
find /path/to/folder -type d -exec chmod 600 {} +Only Apply to Files (find)
find /path/to/folder -type f -exec chmod 600 {} +Recommended Real-World Use Cases
- •SSH Private Keys (`~/.ssh/id_rsa`, `~/.ssh/id_ed25519`)
- •Database password files and `.env` files with API keys
- •Server TLS/SSL Private Keys (`/etc/ssl/private/server.key`)
- •GPG private keyrings
Security Consideration
chmod 600 is mandatory for highly sensitive private credentials. OpenSSH will actively refuse to connect if your private key does not have chmod 600 permissions.
Frequently Asked Questions
chmod 600 Questions & Answers
Common questions regarding Linux permissions, security risks, and recursive chmod commands.
Owner can read and write (rw-). Group and Others have ZERO access (---). In symbolic notation, this is represented as "rw-------".