Glossary

A gigabit, or 10^9 bits.

A gigabyte, or 10^9 bytes, or 8000 million bits.

Locating a computer's geographic location based on its IP address.

A unit of frequency equal to 10^9 hertz, which is defined as one cycle per second.

Integration of Google Accounts, for example in authentication processes.

A service that enables developers to create and run web applications on Google's infrastructure and share their applications via a pay-as-you-go, consumption-based plan with no setup costs or recurring fees.

Standard that defines the protocols to provide audio-visual communication sessions on any packet network. H.323 addresses call signaling and control, multimedia transport and control, and bandwidth control for point-to-point and multi-point conferences.

Barracuda program that allows existing appliance customers with an active Energize Updates subscription to migrate to the latest hardware platforms at a reduced price -- ensuring customers benefit from the latest hardware improvements and firmware capabilities.

Deployment method that ensures that the services running on the system are always available even if one system is down due to maintenance or a hardware fault.

Protocol for submitting data over a network, commonly used to load website content in a web browser.

HTTP header field that identifies the address of the webpage (i.e., the URI or IRI) that links to the resource being requested. (Originally a misspelling of referrer.) 

Consists of communication over HTTP within a connection encrypted by TLS or SSL. The main motivation is authentication of the visited website and protection of the privacy and integrity of the exchanged data.

Computer software, firmware, or hardware that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called a "host machine". Each virtual machine is called a "guest machine".

Cloud infrastructure services in which a virtualized environment is delivered as a service by the cloud provider.

The Identity and Access Management feature of cloud services (like AWS)  that lets you control who can use the provider's services and resources (authentication) and what resources they can use in which ways (authorization).

Infrastructure is the backbone of all of your business operations.

A "copy" of a virtual appliance/image/machine that is being installed, brought up, configured, etc. In the context of an AWS deployment, a virtual product (for example, a Barracuda CloudGen Firewall) that runs on Amazon Web Services (AWS).

Network security feature that monitors local and forwarding firewall traffic for malicious activities.

A numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication.

The fourth and sixth versions, respectively, of the Internet Protocol (IP). Following are examples of notation for each type of address:IPv4    192.0.2.235IPv6    2001:0db8:0000:0042:0000:8a2e:0370:7334

Routing node in an OSI network.

Communication protocol offered by telephone companies that permits telephone networks to carry data, voice, and other source traffic.