I have a problem with my server. The usage of CPU is very high. It vary, but up to 75% when having 100 visitors.
Both Plesk Watchdog and Health Monitoring is showing this.
# Intel® Xeon® X3440 Quadcore 64 Bit
# 8 GB DDR3-RAM
# 2x 1.000 GB SATA II-HDD
# Centos 5
# Plesk 10
Another thing is that when I run this command: netstat -n | grep :80 |wc -l it gives a number up to 900.
I dont think its a ddos, but maybe a problem with the server.
I have no idea how to solve this. please help.