Abstract:
Networks security plays a significant role and that seriously considered as major task when design a network. A Network administrator set different rules policy and procedure to protect the network from different type of threat like passive and active attacks from various vulnerable source. The Network must be protected from accessing unknown sources. The number of threat, attacks (Denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks, Aurora attacks, Malware Attack, Port Scanning , password sniffer, IP Spoofing , Session Hijacking and Man-in-theMiddle Attacks, Cyber-attack, etc. ) increasing day by day and these attack need to identify, explore and take necessary steps for prevent it. So a firewall setup required to secure the network from malicious attacks. The Networks Securities Expert day by day Discovering strong policy and make tremendous rules for prevent those attacks. The main aim of this project is to protect the network from vulnerabilities, threats, attacks, by performing various task and different policy (like IPsec VPN, Strong Masquerades, Port forwarding, Create trusted Zone on WAN and LAN side, etc.) In this project, An Enhanced Network security Model for an Enterprise network has been designed and presented,, Using Firewall with various networking devices. Also, this project has been conducted the network security weakness based on its firewall along with its types of threats and responses of those malicious attacks, the method of preventing those attack form hackers to access the network. Also this project provides a Checklist to use in evaluating whether a network is adhering to best practices in network security and data confidentiality. Different software (GNS3, Metasploit, Freemeter, VMware) has been installed for analyzing security threats and attacks also Bandwidth Monitoring and deployed Strong Firewalls (Fortinet-FortiGate) for prevent these.
