Protocols involved
Delimitation of the perimeter to be secured
Definition of threats, motivations

Automatic network browsing and scans
Denial of service
Intrusions
Loss of information

Practical workshop: detection and protection against different types of attack: SYN Flood, UDP flood, ICMP flood

Vulnerability of client workstations
Security and partitioning
Network access management

Practical workshop: monitoring an internal network, analyzing a client’s vulnerabilities 

Reduced attack surface
Define firewall
Inbound
filter Outbound filter

Practical workshop: limitation of services on a linux system, Windows

Problems of mass attacks and network exploitation
Limiting the risk of intrusion on Windows
Configuration principles for UNIX, Linux and Mac OS for Internet access

Practical workshop: setting up a firewall, observations