Module Topics: The Network as a Bastion of Defense, Firewalls and Proxies, Network Intrusion Detection/Prevention Systems, DoS/DDoS, and Spoofing. In The Network as a Bastion of Defense you will learn about Key Concepts, Network Security Objectives and Attack Modes, Confidentiality, Eavesdropping (Sniffing), Integrity, Integrity, Domain Litigation, Open Mail Relay Servers, and Spam. In Firewalls and Proxies you will learn about Firewalls, Filtering, Network Address Translation (NAT), Port Address Translation (PAT), Static Packet Filtering, Stateful Inspection or Dynamic Packet Filtering, Proxies, Circuit-Level Proxy, Application-Level Proxy, and Web Proxy Servers. In Network Intrusion Detection/Prevention Systems you will learn about Port Scanning, FIN, NULL, and XMAS Scanning, TCP Sequence Number Attacks, Methodology of an Attack, Network Security Tools and Tasks, Intrusion Detection Systems (IDS), Architecture of an Intrusion Detection System (IDS), Security Event Management (SEM)/Security Event and Incident Management (SEIM), Scanners, Discovery Scanning, Compliance Scanning, Vulnerability Scanning and Penetration Testing, Scanning Tools, and Network Taps. In IP Fragmentation Attacks and Crafted Packets you will learn about Teardrop, Overlapping Fragment Attack, Source Routing Exploitation, Smurf and Fraggle Attacks, NFS Attacks, Network News Transport Protocol (NNTP) Security, Finger User Information Protocol, and Network Time Protocol (NTP). In DoS/DDoS you will learn about Denial-of-Service Attack (DoS), Distributed Denial-of-Service Attack (DDoS), and SYN Flooding. In Spoofing you will learn about IP Address Spoofing and SYN-ACK Attacks, E-Mail Spoofing, DNS Spoofing, DNS Vulnerabilities, Manipulation of DNS Queries, Information Disclosure, and Namespace-Related Risks.