DoS: looking at open connections.. How to stop DOS

Here is a command line to run on your server if you think your server is under attack. It prints our a list of open connections to your server and sorts them by ammount. RedHat: netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n BSD: netstat -na |awk '{print $5}' |cut -d "." -f1,2,3,4 |sort |uniq -c |sort -n You can also check for connections by running the