lab 9 - Please help me answer these questions in great deatail for a cumpter science/cyber secuirty class

3.What is the primary place to store log files on a local Linux system and what are recommended procedures for that location?

4.Explain each of the options or switches used in the following command: tar zxvf fwbsl.tar.gz etc/mail/sendmail.mc -C / etc/mail

5.What are the steps to recover a deleted file from the pseudo file system /proc?

6.Why is encrypting an already compressed file necessary?

7.If the recovery time objective (RTO) were unacceptable to your organizations business continuity plan, what could you do to ensure that you achieve the desired RTO for data file, applications, or systems?

8.Why is performing messaging, such as e-mails, in an encrypted fashion recommended as part of a secure communications strategy? Explain.

9.Why is remote logging to a central server considered a best practice?

10.How would you check to see that a recurring cron job was scheduled to run?

11.What change would you make to the rsyslog.conf file to send logging information from your Linux system to a remote logging server at 172.130.1.254?

12.Explain what hashing is and how this differs from encryption.

13.What could be an issue when restoring a tar that was saved onto the local drive under /home/student?

14.Why is it best practice to encrypt backups?

15.Specify a security implication of the syslog service on a system.

16.Why is the Tripwire application considered a file integrity checker?

17.Could rkhunter be considered a file integrity checker? Why or why not?