Monitor disk usage and verify file system configurations using 'df -h' commandValidate DNS configurations and network routes using 'ls -ld /etc/resolv.conf' and 'ip route' commandsGather system details and verify date/time settings using 'uname -a', 'uname -r', and 'date' commandsEnsure proper permissions and verify user/group details using 'ls -ld /etc/passwd /etc/group /etc/hosts', 'cat /etc/passwd', 'cat /etc/group', and 'cat /etc/hosts' commands