My server was working fine until last week, until it seems someone changed my SSH password. After this when I checked the CPU usage, it always 160-190% on executing top command. Some users told that sites are going down many times due to this.
I'm wondering how CPU usage becomes more than 100%. Usually, my CPU usage was always under 10%, may go up to 20% on high traffic. It will be used be www-data.
I am SSH'ing in using Putty, and this is what I see:
Server configuration:
- OS: Ubuntu
- Web Server: Nginx
- RAM: 2GB
- Control Panel: Ajenti
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