Use below SSH command to find detailed memory information about your server. It will show you total memory, free memory, used memory, cached memory etc.
cat /proc/meminfo
You can check centOS version installed on your dedicated derver / VPS using below SSH command.
cat /etc/*release*
You can check your dedicated server or VPS memory details using SSH command.
free –m
This command will show total memory installed, currently used memory, currently free memory and other details.
Top command in SSH is used to display top process using high CPU.
To exit top press the q key