what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled?
Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?
Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes?
Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?