Study tips 117-102

Study tips 117-102, LPI Level 1

What is a well-known service that binds port 25 and is it required on all hosts?

What action, if any, should you take?

What is the best utility to use to do this?

What will happen when users try to connect with ssh?

The legacy program for listing files in the printer queues from the command line is:

what should the administrator do?

What should the permission settings be for /etc/passwd and /etc/shadow?

Which of the following configuration files should be modified to set default shell variables for all users?

What command prints available functions?

Which line in your /etc/hosts.allow will have the desired effect?