How to Check if My Server is Under DDoS Attack

1. How to Check if My Server is Under DDoS Attack What is DDoS Attack? First of all, let us understand what DDoS exactly means. DDoS stands for Distributed denial of service attack. It is a malicious cyber-attack by online hackers or cyber criminals to make an online service or server unavailable on the internet. In DDoS attacks, the attacker sends a large amount of fake traffic to the targeted host to make their website down. For webmasters, a DDoS attack is a tense situation because many don’t know what DDoS is or how to know that they are being DDoSed. Firstly, We advise you to stay calm & understand the situation appropriately. But How? In this article, we will know how you can understand that you are DDoSed in simple ways. Also Read: What To Do When Your Website Is Hacked So let us discuss some of the ways to detect DDoS attacks. There are various ways to detect that your website is under DDoS attack. Some of the primary signs are given below - Also Read : When your website takes more time to load 1. When your website doesn't respond properly 2. When your website is unavailable 3. When the RAM or CPU is Overloaded 4. When Sending & Receiving Emails gets fail Also Read: Is Your Cpanel Not Receiving Emails-What to Do? How to Detect DDoS Attack on Linux System 1.First, you must log in to the Linux server using SSH.

2. 2.Follow the below-given command to find the IP address connected to your Linux system. # netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | cut -d: -f1 | sort | uniq -c 3.To find out the Linux IP address source and the number of connections of the same IP addresses, run the below-given command. # netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c sort -n | 4.Next, you must check the number of currently active connections on your server. For that, run the following command. # netstat -n | grep :80 |wc -l 5.Check the IP address on a server; if there are too many connections, it might be the attacker's IP address. Once you discover where the DDoS attack is coming from, you can block them using the following command. Block it using the IP tables on Linux Machine. # route add IP address reject So that was how to detect DDoS attacks on Linux servers. Now let us see how to detect DDoS attacks on the windows servers. Here are some steps to detect it How to Detect DDoS Attack on Windows System 1.Firstly, you have to log into your server via RDP. Also Read: How To Connect To A Windows VPS using RDP? 2.After login, Go to the “start” section and Open “Run.” type “CMD” in the box and hit enter. With this, you will get into the command prompt. To see all the connections of your system, type nestat-noa in which, n displays active TCP connections.

3. o displays active TCP connections & also includes the Process ID for each connection that helps you to find out the application running the same process ID in the windows task manager. a displays all the TCP connections along with TCP/UPD ports on which the computer is listening. Also Read: How to Connect to FTP Using FileZilla on Windows Source https://www.hostitsmart.com/manage/knowledgebase/232/How- to-Check-if-My-Server-is-Under-DDoS-Attack.html