Sort DNS entries based on the kind of records each one contains. Provide instances of each and a short justification for each as you describe them. Is it possible for a web server and mail server operating under the same company name to share an alias?

But what's the difference between an encrypted password database and a file where hashed passwords are stored?

IN PHP What did we need to store in the database for 2-factor authentication to be possible?

Sort the many kinds of DNS records into categories. Explain each one briefly, using concrete instances, as well as why it is employed. Is it feasible to have the same hostname alias for a company's web server and mail server?

The tripwire program is an example of a host-based intrusion detection system. This tool examines files and folders on the system and notifies the administrator of any changes. It employs a protected database of cryptographic checksums for each file reviewed and compares them as they are scanned. It must be set with a list of files and directories to check and changes allowed. It can allow adding new entries to log files but not changing old ones. What are the benefits and drawbacks of employing such a tool? Consider the issue of selecting which files should be checked and which should be reviewed rarely. Consider the time spent configuring the application and monitoring the results.

Sort DNS records based on the kind of record they include. Describe each using examples and explain why they are used in a succinct manner. Is it possible to use the same alias for the hostname of a web server and a mail server in the same organization?

Make a list of DNS entries grouped by the kind of record included in each entry. Examples and an explanation of why their use is advised have been provided for each of them. Do you think it's possible to use the same name for a web server and a mail server at the same time?

What specific differences exist between block ciphers and stream ciphers? Please list three distinctions and explain each one.

What is the difference between a session key and a master key?

To what end does it make more sense to store passwords in a hashed file as opposed to an encrypted database?