Research on the Internet Linux and Windows password management methods

*"DoS Attacks and Password Cracking"  Please respond to the following:

• Identify three (3) DoS attacks and analyze the way in which each attack takes advantage of the interworking of the transport protocols (e.g.,TCP, IP, and UDP) and exploits the protocol's  vulnerabilities. Describe the protocols used for each attack and suggest methods that system / security administrators could use in order to detect the attack and mitigate recurring instances. Explain the manner in which a Distributed DoS attack may be more effective than a DoS in bringing down a large network.
• From the e-Activity, compare and contrast Linux versus Windows password management methods.  Suggest the methodology that you would use in order to make sure that all passwords have different hash values. Provide a rationale to support your response.