centos▌

Diagnose and resolve CentOS issues with RHEL-compatible commands and SELinux awareness. \n \n Confirms CentOS release type (Stream vs. legacy) and provides triage steps using systemctl, journalctl, dnf/yum, and log inspection \n Includes copy-paste-ready remediation commands with verification steps after each major change \n Addresses SELinux policies and firewalld configuration as part of troubleshooting workflow \n Provides rollback and cleanup procedures to safely revert changes \n