Usefull Commands
Check system usage, updated every second:
vmstat 1
Check jow much free ram you have on your system:
free -m
Check I/O utilization on your drive(s):
iostat -dkx
Howto secure your centos
Check system usage, updated every second:
vmstat 1
Check jow much free ram you have on your system:
free -m
Check I/O utilization on your drive(s):
iostat -dkx