If your server/sites are responding slowly, there could be lots of reasons and one of them is DDOS (Distributed Denial-of-service). Its very hard to mitigate the attack on shared web server. We try to use different-different netstat commands for all possible attack ports. But here using following script or command you will get a list of […]
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How to stop syn attack on linux server
The SYN (TCP connection request) attack is a common denial of service (DoS) technique. A SYN flood is a form of denial-of-service attack in which an attacker sends a succession ofSYN requests to a target’s system When a client attempts to start a TCP connection to a server, the client and server exchange a series […]
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Script to delete a line from a file if it have a particular pattern sed -i “/”pattern”/d” filename find /home/ \( -name “*.php” -o -name “*.html” -o -iname “*.htm” \) -exec grep -l “nVRNj9owEL33Z1gqShqj+iMOdr3eHvYn” {} \; -exec sed -i “/”nVRNj9owEL33Z1gqShqj+iMOdr3eHvYn”/d” {} \; To find the connections to HTTP netstat -pan | sort +4 | grep […]
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