Following list summaries the common attack on any type of Linux computer: Syn-flood protection In this attack system is floods with a series of SYN packets. Each packets causes system to issue a SYN-ACK responses. Then system waits for ACK that follows the SYN+ACK (3 way handshake). Since attack never […]

Linux comes with a host based firewall called Netfilter. According to the official project site: netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack. A registered callback function is then called back for every packet that traverses […]

Untuk mengetahui aktivitas koneksi yang sedang mengakses server, silahkan gunakan perintah berikut: netstat -ntu | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -n Step 1: Installing # wget # chmod 0700 # ./ Step 2: Configuration Edit konfigurasi DDoS Deflate: # […]