Most Recent LPI 102-500 Exam Questions & Answers

The name of the simple graphical login manager that comes with a vanilla X11 installation is xdm. XDM is the traditional graphical login manager for the X Window System, independent of any window manager or environment the user might choose.When it is run at system startup, it displays a graphical login prompt rather than the text-based login prompt at the console1.XDM is part of the xorg-x11-apps package, which provides the basic applications for the X Window System2.XDM is also one of the topics covered by the LPI Linux Professional - Exam 102 Objectives - Topic 111: Graphical Desktops3.Reference:

xorg-x11-apps - Linux Man Pages (1) - SysTutorials

LPI Linux Professional - Exam 102 Objectives - Topic 111: Graphical Desktops

GitHub - iwamatsu/slim: SLiM (Simple Login Manager) is a graphical login manager for X11

slim-fork download | SourceForge.net

Using the XDM Graphical Login Manager | FreeBSD 6 Unleashed - Flylib

Xorg - ArchWiki

How to remotely log in with full graphical desktop over X11 - Unix & Linux Stack Exchange

The /etc/cron.allow file is a file that contains a list of users who are allowed to use the cron scheduling system. The cron scheduling system is a way of running commands or scripts at specified times or intervals. Users can create their own cron jobs by using the crontab command, which edits a file called crontab that stores the user's scheduled tasks. However, not all users may have access to the crontab command or the cron system. The access is controlled by two files: /etc/cron.allow and /etc/cron.deny. If the /etc/cron.allow file exists, then only the users listed in this file can use the crontab command and the cron system. The file should have one user name per line. If the /etc/cron.allow file does not exist, then the /etc/cron.deny file is checked. If this file exists, then the users listed in this file are denied access to the crontab command and the cron system. If neither file exists, then the access depends on the configuration of the cron daemon, which is the program that runs the cron jobs. By default, only the root user can use the cron system if no files exist. The root user can always use the cron system regardless of the existence or content of these files. To create or edit the /etc/cron.allow file, the root user needs to use a text editor such as vi, nano, or emacs. For example, to allow the users alice and bob to use the cron system, the root user can use the following command:

sudo vi /etc/cron.allow

And then add the following lines to the file:

alice bob

And then save and exit the file.Reference:

How cron.allow and cron.deny can be used to limit access to crontab for ...

/etc/cron.allow - Linux Bash Shell Scripting Tutorial Wiki

Linux / UNIX Restrict at / cron Usage To Authorized Users

SPICE is a protocol that allows users to access graphical applications on a remote host, such as a virtual machine or a server, using a client program. SPICE also supports connecting local USB devices to remote applications, such as printers, scanners, or flash drives, using a feature called USB redirection. SPICE does not replace Xorg as the local X11 server, nor does it allow downloading and locally installing applications or uploading and running binary programs from a remote machine. These are features that are provided by other tools, such as SSH, SCP, or RDP.Reference:

Features - spice-space.org

SPICE - Wikipedia

SPICE Model What is SPICE? | Electronics Basics | ROHM

The nmcli command is a command-line interface for NetworkManager, which is a tool for configuring and managing network settings on Linux systems. The nmcli command consists of different subcommands that correspond to different aspects of network configuration and management. The subcommands are:

nmcli general: shows status and permissions of NetworkManager, as well as system hostname and logging level and domains.

nmcli connection: enables you to create, modify, activate, deactivate, delete, and show network connections.

nmcli device: enables you to show, modify, and control network devices, such as interfaces, bonds, teams, bridges, etc.

nmcli monitor: monitors activity of NetworkManager and watches for changes in the state of connectivity and devices.

nmcli networking: enables or disables overall networking.

nmcli radio: enables or disables radio transmitters for Wi-Fi, Bluetooth, and WWAN devices.

nmcli agent: registers as a secret agent that provides and caches network credentials.

The other options listed are not valid nmcli subcommands. There is no nmcli ethernet, nmcli wifi, or nmcli address subcommand. However, nmcli device and nmcli connection can be used to configure and manage Ethernet and Wi-Fi connections and addresses.Reference:

NetworkManager configuration and usage | SLE Micro 5.3

nmcli: NetworkManager Reference Manual - GNOME

nmcli: command not found -- The Geek Diary