A Linux administrator needs to run a command in the background of a terminal, Which of the following commands will BEST accomplish this task?
A technician wants to configure a Unux server as a gateway firewall. The technician has implemented the proper ACLs and port address translation policies, but network traffic is not passing from the LAN to the WAN. Which of the followng should the technician configure to fa this issue?
A Linux administrator has configured a local named caching server to reduce the amount of time to resolve common DNS addresses. The server resolves using the external server, however; the administrator wants to avoid this configuration. The administrator verifies the named, conf settings to confirm the following relevant settings:
The administrator then runs dig twice to look up an external address and receives the following relevant output the second time.
Which of the following should the administrator do to correct the configuration?
Which of the following commands adds a bootioader that will allow an administrator to boot to a specific kernel version?
A systems administrator is attempting to access a server by SSH. The Linux administrator ensures that the SSH keys on the remote server were unable to connect. The following error message is being displayed:
Which of the following needs to be changed on order for the administrator to access the server via SSH?