Özet:

In this study, DDoS, SQL injection and XSS attacks that hackers use most in cyber attacks are modeled on GNS3 emulator platform and network security is analyzed. A network scenario was designed using Graphical Network Simulator (GNS3), virtual machines, VMware workstation, firewall, router, and switches in order to examine the attacks on networks in real environment. Attacks were performed on this network with different techniques and target servers and devices were affected by the attacks. At the time of the attack, network traffic between the attacker and the target device was recorded with Wireshark software. Network traffic records and traces were examined and evaluations of attacks were made.

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