Glossary

A cloud computing environment optimized for use and built around the compliance needs of specialized industries such as healthcare, financial services, and government operations.

Graphical software that enables you to remotely control another computer, independent of platform.

Allows multiple guest virtual machines (VM) to run on a host operating system. Guest VMs can run on one or more levels above the host hardware, depending on the type of virtualization.

Service that is used to prevent, detect, and remove malicious software.

Any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). The physical interface behaves like several interfaces, and the switch behaves like multiple switches.

Method to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link. As it arrives at the end of the trunk link, the tag is removed and the frame is sent to the correct access link port according to the switch’s table, so the receiving end is unaware of any VLAN information.

An emulation of a computer system that is based on computer architectures and provides functionality of a physical computer. For example, the Barracuda NextGen Firewall Azure can be deployed as a virtual machine in the Microsoft Azure cloud.

A software company that provides cloud and virtualization software and services, incuding vSphere.

A representation of your own network in the Azure cloud.

In a single Azure region, connecting multiple virtual networks with a high bandwidth, low-latency connection.

A standard for voice communication over IP networks.

An elastic network populated by infrastructure, platform, and application services that share common security and interconnection.

A feature that enables you to create a private connection between your VPC and an another AWS service without requiring access over the Internet, through a NAT instance, a VPN connection, or AWS Direct Connect.

Networking connection between two AWS VPCs that enables you to route traffic between them using private IPv4 addresses. 

An end device, software, or user that is seeking connection, network or data services from a VPN.

An enhanced suite of tools for cloud computing utilizing VMware ESX/ESXi. Includesthe VMWare vCenter server and the vSphere client.

Specifies virtual model of a Barracuda Networks products. For example, Barracuda Web Application Firewall 460 Vx.

A network connecting devices separated by large geographical distances, often joining multiple local access networks (LANs). 

Method to reduce traffic flow across the WAN. Barracuda NextGen Firewalls make use of Lempel-Ziv and Generic Large Dictionary compression to reduce TINA tunnel traffic. 

IP address used to connect your WAN to the Internet. It is shared by all devices in the WAN. 

Communication circuit that joins two or more local area networks (LANs) into a wide area network (WAN).

A phrase used to describe applications, products, and techiques used to manage and accelerate the flow of data across a wide area network (WAN). For example: traffic prioritization, deduplication, data compression, caching, and VPN tunneling.

Term for a second generation of the World Wide Web, focused on the ability for people to collaborate and share information online. Web 2.0 describes World Wide Web sites that emphasize user-generated content, usability, and interoperability.

Client–server software application in which the client (or user interface) runs in a web browser.

Web-based user interface.

A computer system that processes requests via HTTP, the basic network protocol used to distribute information on the web.

Extension of HTTP that enables clients to perform remote web content authoring operations. 

A technology for wireless local area networking with devices based on the IEEE 802.11 standards. 

Setting on the Barracuda CloudGen Firewall that provides access to wireless networks. In earlier versions, Wi-Fi access is configured through a service. 

A device that allows wireless devices to connect to a wired network using Wi-Fi or related standards. 

Method used by clients to locate the URL of a configuration file, using DHCCP or DNS.

Method to connect to a wireless network. 

Standard for a Public Key Infrastructure (PKI) to create digital certificates.

A digital document that uses the X.509 public key infrastructure (PKI) standard to verify that a public key belongs to the entity described in the certificate.

An xDSL connection is a tunneled connection using Point-to-Point Protocol over Ethernet (PPPoE) or Point-to-Point Tunneling Protocol (PPTP), depending on your ISP. 

Citrix hypervisor that allows to run multiple virtual machines (VMs) on one physical device.