I am not a server guy and currently maintaining a small server for my own needs (Development and testing).
I got a notification that my Server CPU usuage is around 99% from last 3+ hours.I know that this is quite personal site to me and I have never shared URL with anyone so just to check I installed htop
and tried to find out root cause of this usuage and this is what I got from htop
I understand whois
is for DNS lookup ,but I have not done any changes to server from last few days so how come this service just started eating up so much CPU.
Can any one help me to understand this issue?