Security Calculators
20 free security calculators in Linux.
- ACL Permission CalculatorCalculate effective access permissions when POSIX ACLs override standard file mode bits.
- AppArmor Profile CalculatorEstimate AppArmor profile rule coverage and enforcement mode impact on an application.
- Audit Log Growth CalculatorEstimate auditd log growth rate and storage needs based on audit rule verbosity.
- Certificate Expiry CalculatorCalculate days remaining until an SSL/TLS certificate expires and renewal deadline.
- File Permission CalculatorConvert Linux file permissions between octal, symbolic and chmod notation instantly.
- Hash Speed CalculatorEstimate hashing throughput and brute-force crack time for a given hash algorithm.
- Log Rotation Size CalculatorCalculate total disk space consumed by rotated log files based on logrotate retention policy.
- MD5 Checksum CalculatorCalculate MD5 checksum verification time for files based on size and hashing throughput.
- Octal Permission CalculatorConvert numeric octal permission codes like 755 or 644 into readable rwx notation.
- Password Entropy CalculatorCalculate password entropy in bits from character set size and password length.
- Password Expiry CalculatorCalculate password expiration date from chage aging policy settings like PASS_MAX_DAYS.
- SELinux Context CalculatorDecode SELinux security context labels into user, role, type and sensitivity components.
- SGID CalculatorCalculate the resulting permission bits and behavior of setting the SGID bit on files or directories.
- SHA Checksum CalculatorCalculate SHA-1, SHA-256 and SHA-512 checksum length and verification time for a file.
- SSH Connection Capacity CalculatorCalculate maximum concurrent SSH sessions supportable under sshd MaxSessions and MaxStartups.
- SSH Key Length CalculatorCompare SSH key algorithm and bit-length strength across RSA, ECDSA and Ed25519.
- SSH Session Timeout CalculatorCalculate SSH idle session timeout from ClientAliveInterval and ClientAliveCountMax settings.
- Sticky Bit CalculatorCalculate the resulting permission bits of setting the sticky bit on shared directories.
- SUID CalculatorCalculate the resulting permission bits and security implications of setting the SUID bit.
- Symbolic Permission CalculatorConvert symbolic permission strings like rwxr-xr-- into octal chmod values.