BestHub
Sign in
Tagged articles

password complexity

3 articles · Page 1 of 1
Raymond Ops
Raymond Ops
Aug 12, 2026 · Information Security

Common Security Configuration Issues Ops Face During GB/T 22239-2019 (Level‑2/3) Compliance

This guide walks operations engineers through the background, requirements, typical audit findings, step‑by‑step remediation commands, and verification methods for the most frequent security configuration problems encountered when implementing GB/T 22239‑2019 Level‑2/3 compliance on CentOS 7/8 and Ubuntu 20.04, covering identity authentication, access control, auditing, intrusion prevention, resource limits, and data confidentiality.

GB/T 22239SELinuxauditd
0 likes · 23 min read
Common Security Configuration Issues Ops Face During GB/T 22239-2019 (Level‑2/3) Compliance
Raymond Ops
Raymond Ops
Jul 12, 2025 · Information Security

How to Enforce Password Expiration and Complexity on Linux Systems

Learn how to configure password aging and enforce complexity rules on Linux by editing /etc/login.defs and /etc/pam.d/system-auth, including setting maximum password age, minimum length, character class requirements, and preventing reuse of recent passwords, with practical sed commands and example configurations for CentOS 6 and 7.

PAMpassword agingpassword complexity
0 likes · 8 min read
How to Enforce Password Expiration and Complexity on Linux Systems
MaGe Linux Operations
MaGe Linux Operations
Dec 5, 2024 · Information Security

How to Configure Linux Password Expiration and Complexity Rules

This guide explains how to set password aging limits in /etc/login.defs, modify them with sed, and enforce password complexity on CentOS systems using PAM modules such as pam_cracklib and pam_pwquality, including recommended values and practical examples.

LinuxPAMpassword complexity
0 likes · 9 min read
How to Configure Linux Password Expiration and Complexity Rules