The lsb_release -a command displays detailed Linux distribution information, including distributor ID, OS version, release number, and codename. It is commonly used by system administrators, DevOps engineers, and security teams to verify operating system details for compatibility, automation, and compliance purposes. In Linux system administration, accurately identifying the operating system and distribution details is a fundamental task. Whether you are troubleshooting an issue, validating application compatibility, preparing for compliance audits, or managing heterogeneous environments, knowing the exact Linux distribution and version is critical.The lsb_release -a command provides a standardized and reliable way to retrieve this information. What Is lsb_release? lsb_release…
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Learn how to harden SSH and Access Control Hardening on Ubuntu and openSUSE Linux servers using proven commands, configuration examples, and outputs. Strengthen system security and compliance with best practices for SSH hardening. Key advantages of Access Control Hardening: Comprehensive Access Control Hardening Steps 1. Disable Root Login Root login via SSH is one of the most targeted attack vectors. Disabling root access prevents attackers from brute-forcing the default “root” account. Commands (Ubuntu & openSUSE): Verify: Expected Output: Explanation: This ensures only non-root users can connect. Admins must log in with their personal accounts and use sudo for privileged operations.…