Command Line Tools for DDOS related

DDOS Tools

IPs are being connected to the server and how many connections are for each IP:
netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n

How many connections are being received by each server IP:
netstat -plan |grep :80 | awk '{print $4}' | cut -d: -f1 | sort | uniq -c | sort -n

To see the total amount of active apache connections:
netstat -apn | grep :80 | wc -l

Tail log Apache errors:
tail -f /etc/httpd/logs/error_log

Stop/Restart
service httpd stop
fuser -k 80/tcp #Show what PID is listening on port 80 on Linux
service httpd start

Apache Status via console
/usr/sbin/httpd fullstatus

Apache Status via lynx
lynx http://localhost/whm-server-status