Linux, Module 12

Two or more computers joined together via network media and able to exchange information.

A network in which the computers are all in close physical proximity.

A network in which computers are separated geographically by large distances.

A company that provides Internet access.

A set of rules of communication used between computers on a network.

A package of data formatted by a network protocol.

The most common network protocol used on the Internet. It provides for reliable communication.

A less-reliable, but faster version of the TCP/IP protocol.

A protocol used on the Internet to provide error messages and network-related information.

The most common WAN protocol used to send TCP/IP packets across a telephone line.

A system that defines how computers on a network share access to the physical medium.

The most common media access method used in networks today.

A media access method commonly used by industrial networks.

A LAN technology that uses Ethernet to transmit data over the air.

A unique string of numbers assigned to a computer to uniquely identify it on the Internet.

The most common version of IP used on the Internet. It uses a 32-bit addressing scheme organized into different classes.

A recent version of IP that is used by some hosts on the Internet. It uses a 128-bit addressing scheme.

A series of four 8-bit numbers that determine the network and host portions of an IP address.

The IP address of the router on the network used to send packets to remote networks.

IP communication that is destined for a single computer.

A portion of an IPv4 address that represents eight binary bits.

The portion of an IP address that denotes the network.

The portion of an IP address that denotes the host.

The process by which binary bits are compared to calculate the network and host IDs from an IP address and subnet mask.

A notation that is often used to represent an IP address and its subnet mask.

A TCP/IP communication destined for all computers on a network.

IP communication destined for a certain group of computers.

The process in which a single large network is subdivided into several smaller networks.

The hardware address that uniquely identifies a network interface.

A term that refers to the worldwide collection of small Internet-connected devices.

A protocol used to encapsulate IPv6 packets within an IPv4 network.

A technology that allows a router to obtain Internet resources on behalf of computers on the network.

Used to configure and display NIC hardware settings.

Used to display and modify the IP configuration information for a network interface.

Used to obtain IP configuration for a network interface from a DHCP or BOOTP server on the network.

A feature that automatically configures a network interface using an IPv4 address on the 169.254.0.0 network, or an IPv6 address on the FE80 network.

A protocol used by computers to obtain an IPv6 configuration from a router on the network.

Used to display network information and active connections.

Used to set and display the configuration of wireless network interfaces.

The software component that configures NICs on modern Ubuntu systems.

A data format based on JSON that is commonly used for configuration files.

A graphical utility in Fedora 28 that can be used to configure settings for the network interfaces on the system.

A software component that manages the configuration of network interfaces.

Used to display and configure network interfaces using NetworkManager.

A Systemd daemon that manages the configuration of network interfaces.

Used to display and configure network interfaces using Systemd-networkd.

Used to check connectivity on an IPv4 network.

Used to check connectivity on an IPv6 network.

The protocol used by DSL to send PPP information over an Ethernet connection.

A graphical utility that can be used to configure modem settings on Linux systems.

Used to configure a DSL connection on Fedora systems.

Used to start the graphical Network Connections tool that is part of NetworkManager.

A graphical NetworkManager utility that can be used to configure additional network interfaces and related technologies, such as DSL.

A virtual network that overlays an existing TCP/IP network. Any data sent on this virtual network is encrypted.

A technology used to allow hardware devices to communicate directly with each other without accessing the CPU of the system. It is often used by network technologies such as Infiniband.

The process of combining two NICs on the same network to provide fault tolerance or load balancing.

The process of merging two separate networks using the NICs on a server.

Used to start a text version of the Network Connections tool that is part of NetworkManager.

Used to configure a DSL connection on Ubuntu systems.

A user-friendly name assigned to a computer.

A host name that follows the DNS naming convention.

The naming convention used by computers on the Internet.

Used to obtain information about the organization that maintains a DNS domain.

Used to display and change the host name of a computer.

Used to change the host name of a computer as well as ensure that the new host name is loaded at boot time.

Used to resolve host names to IP addresses.

Used to resolve host names to IP addresses.

Used to resolve host names to IP addresses.

A table of information used to indicate which networks are connected to network interfaces.

Used to manipulate the route table.

The computers that have more than one network interface.

The act of forwarding data packets from one network to another.

The act of forwarding TCP/IP packets from one network to another; see also routing.

Used to view and modify files stored under /proc/sys.

Used to perform a wide variety of IP management tasks on a Linux system, such as viewing and manipulating the route table. It is part of the optional iproute2 package.

Used to configure routing protocols, such as RIP and OSPF, on a Linux system. It is part of the optional Quagga package.

Used to trace the path an IPv4 packet takes through routers to a destination host.

Used to trace the path an IPv4 packet takes through routers to a destination host.

Used to trace the path an IPv4 or IPv6 packet takes through routers to a destination host.

Used to trace the path an IPv6 packet takes through routers to a destination host.

A process that responds to network requests.

A number that uniquely identifies a network service.

Of the 65,535 possible ports, the ports from 0 to 1023, which are used by common networking services.

Used to display network connections.

A daemon that is started without the use of xinetd.

A network daemon that is used to start other network daemons on demand.

A network testing utility. It is often used to test the functionality of services on the network.

Used to obtain a shell on a remote computer running a Telnet daemon.

A cross-platform SSH client.

A technology that can be used to run remote applications on a Linux computer; it encrypts all client-server traffic.

Used to connect to a SSH daemon on a remote computer.

The asymmetric public and private keys on a computer running sshd. They are used to negotiate the symmetric key at the beginning of an SSH session.

Used to generate or regenerate SSH encryption keys.

Used to copy SSH user keys to the home directory of a user on another computer to allow for simplified authentication.

Used to start the SSH agent process.

Used to add SSH user keys to the SSH agent process.

A cross-platform technology that allows users to connect to a graphical desktop across a network.

Used to set a VNC connection password for a user.

Used to start the VNC server process for a user.

A program used to connect to a VNC server and obtain a graphical desktop.