What option tells ssh to go into the background after authentication?

Which of the programs, included in samba, tells you who is using the smbd daemon?

Which of the variables, specifying how to write and reply to mail messages, tells mutt not to prompt for a number of the headers?

Which of the variables, specifying how to write and reply to mail messages, tells mutt whether it should wait for the mail to be sent before continuing?

Which of the variables, specifying how to write and reply to mail messages, tells mutt to include the headers in the message you write?

When is tar option -z used?

When you must specify the z option, using program tar?

What option of the ps command shows daemons?

What option of the ps command shows all processes in the system?

Which ftpd option restricts access to only anonymous ftp?

What is false about option -maproot in file /etc/exports?