Security News > 2021 > January > How to quickly check to see if your Linux server is under a DoS attack from a single IP address

Jack Wallen shows you an easy way to determine if your Linux server is under a DDoS attack and how to quickly stop it.

How? In this piece I'm going to show you a few commands that can help you discern if your server is being hit by a denial of service attack, which comes from a single IP address and attempts to cripple a website to render its server inaccessible.

Let's find out how to tell if your Linux server is a target of a DoS attack.

How to check your server load. The first thing we're going to do is check our server load. The command we'll use for this will return the number of logical processors.

How to find out what IP addresses are connected to your server.

For this, we'll use netstat like so:.netstat -ntu|awk ' '|cut -d: -f1 -s|sort|uniq -c|sort -nk1 -r. The output of the above command will list out each IP address that is connected to the server and how many instances from each.

News URL

https://www.techrepublic.com/article/how-to-quickly-check-to-see-if-your-linux-server-is-under-a-ddos-attack-from-a-single-ip-address/#ftag=RSS56d97e7