COP 3350 - Week 5.1: IP Address and Hostname

Vocabulary flashcards covering IP addressing, hostnames, IPv4 basics, subnetting, static vs. dynamic IP addressing, and Linux networking tools like nmcli and nmtui, along with file configurations for hostnames and verification commands.

IP addressing

Enables devices to communicate over a network.

Hostnames

Provide human-readable names for devices.

IPv4

An IP addressing protocol expressed in dotted-decimal format (e.g., 192.168.1.1).

Subnet mask

Defines network boundaries and controls subnetting.

Subnetting

Divides networks into manageable segments, defined by subnet masks.

Static IP

An IP address manually assigned to critical devices that remains constant over time.

Dynamic IP

An IP address assigned by a DHCP server, which can change over time.

DHCP server

A server responsible for assigning dynamic IP addresses to devices on a network.

nmcli

A powerful command-line tool for configuring network settings in Linux.

nmtui

A text-based user interface tool for configuring network settings in Linux.

nmcli connection modify [connection-name] ipv4.addresses [address]

A command used to set a static IP address for a specified network connection using nmcli.

nmcli connection modify [connection-name] ipv4.method manual

A command used to configure a network connection to use a manual (static) IP address assignment method.

/etc/hostname

A configuration file that stores the system's hostname.

/etc/hosts

A configuration file used to map IP addresses to hostnames locally.

ping [IP_ADDRESS]

A command used to test and verify network connectivity to a specific IP address.

hostname command

A command used to display or set the system's hostname.