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Barracuda Web Security Agent
Barracuda Web Security Agent

Glossary

add-in

Additional feature, such as Barracuda Microsoft Outlook Add-In. 

add-on

A piece of software that enhances another software application and usually cannot be run independently.

AMI

AWS template that contains configuration, application server, and applications required to launch an EC2 AWS Instance.

Android

Mobile device operating system. Compare to Apple iOS.

antivirus

Antivirus software, abbreviated: AV. Used to prevent, detect and remove malicious software.

API

 A set of tools and procedures provided by the programmer of an application so that other programmers can control, exchange data with, or extend the functionality of an application.

APN

Access Point Name provided by an ISP for wireless WAN connections.

Apple iOS

Apple mobile operating system for devices such as iPhone and iPad. Compare to Android.

appliance

Device or piece of equipment.

Application Load Balancer

AWS feature that makes routing decisions at the application layer (HTTP/S), supports path-based routing, and can route requests to one or more ports on each EC2 instance or container instance in a VPC.

ARP

Protocol for mapping IP addresses to physical addresses such as Ethernet or Token Ring.

ASCII

Referring to a standard 7-bit character system that includes the alphanumeric characters and printer control codes.

authoritative DNS

Name server that gives answers in response to queries about names in a DNS zone.

authority zone

Associated with DNS. A section of the domain-name tree for which one name server is the authority.

Auto Scaling Group

A representation of multiple EC2 instances that share similar characteristics, and that are treated as a logical grouping for the purposes of instance scaling and management.

autonomous system

Collection of networks under a common administration sharing a common routing strategy. Autonomous systems are subdivided by areas. An autonomous system must be assigned a unique 16-bit number by the IANA. 

AWS Direct Connect

Enables you to use the Internet privately through AWS cloud services by linking your internal network to an AWS Direct Connect location. You can create virtual interfaces directly to the AWS cloud and to Amazon VPC, bypassing Internet service providers in your network path.

AWS IoT

A managed cloud platform that lets connected devices easily and securely interact with cloud applications and other devices.

AWS region

A named set of AWS resources in the same geographical area. A region comprises at least two Availability Zones.

AWS Management Console

A simple and intuitive web-based user interface to access and manage AWS.

back-end server

Part of the back-end process, that usually consists of server, application, and database. The back end is where the technical processes happen, as opposed to the front end, which is usually where the user's interaction occurs.

backbone

Referring to the Internet, a central network that provides a pathway for other networks to communicate.

Balance-XOR

Operating mode for Ethernet bundles where the link is chosen by calculating the hash out of the source/destination MAC (Layer 2) combined with the IP addresses (Level 3).

Barracuda Campus

Online documentation for all Barracuda products, located at campus.barracuda.com. Contains feature descriptions, how-to articles, and release notes. Formerly known as Barracuda University and Barracuda TechLibrary.

Barracuda Central

Provides a wide range of statistics, threat information, and a number of useful services to help manage and secure your network. Shares information with Barracuda Networks customers and the Internet security community. 

Barracuda cloud

Barracuda's cloud, where services such as the Barracuda Web Security Service and Email Security Service are situated.

Barracuda Networks account

Credentials granted and used to log into your Barracuda Networks product.

Barracuda Networks Technical Support

Contact Barracuda Networks Technical Support if you need help with your Barracuda Networks product. Visit https://www.barracuda.com/support/index for details.

Barracuda NextGen Control Center

Central administration appliance designed to manage a large number of Barracuda NextGen Firewalls F-Series. 

Barracuda NextGen Firewall X-Series

Application-aware network firewall appliance, designed for organizations without dedicated IT personnel to manage firewalls.

Barracuda NG Web Security Gateway (IBM ISS)

Web Security Gateway engine used by the URL Filter service on the Barracuda NextGen Firewall F-Series. The Barracuda NG Web Security Filter can only be used in combination with the HTTP proxy and is not compatible with Application Control. Requires a Barracuda NG Web Security Gateway subscription.

Barracuda portal

Entry point into Barracuda cloud services.

Barracuda Web Security Agent

A tamper-proof client that can be installed on remote, off-network laptops or desktops to help implement a consistent web security policy across localized and distributed workforces.

Barracuda Web Security Service

A cloud-based service that deploys Barracuda’s web security technology for organizations looking to leverage the scalability and flexibility of the cloud. The WSS unites spyware, malware, and virus protection with a policy and reporting engine.

BIND

The standard TCP/IP naming service that links network names with IP addresses.

block device

Storage device that moves data in sequences of bytes or bits (blocks). Example: hard disk, CD-ROM drive, flash drive.

block device mapping

Defines the block devices (instance store volumes and EBS volumes) to attach to an AWS instance. 

blocklist

List of domains, users, or hosts that are denied access, especially refers to mail and web traffic. Sometimes known as blacklist. Compare to allow list or whitelist.

central management

Allows administrators to configure multiple units from a centralized location. For example, configuring multiple Barracuda NextGen Firewall F-Series units from the Barracuda NextGen Control Center.

certificate

A document or seal certifying the authenticity of something. A digital certificate certifies the ownership of a public key. This allows relying parties to rely upon signatures or on assertions made about the private key that corresponds to the certified public key.

changelog

Log of configuration changes on the appliance. Can be found in the release notes of the product.

checksum

The result of a mathematical operation that uses the binary representation of a group of data as its basis, usually to check the integrity of the data.

Class A|B|C|D network

Classes of IP addresses as defined in the Internet Protocol hierarchy.

classic load balancer

In AWS, a Classic Load Balancer makes routing decisions at either the transport layer (TCP/SSL) or the application layer (HTTP/HTTPS), and supports either EC2-Classic or a VPC (virtual private cloud).

cloud integration

AWS cloud integration allows the firewall to connect directly to the AWS service fabric to rewrite routes in AWS route tables and to retrieve information for the cloud element on the dashboard. Cloud integration also works with Azure.

cloud operating system

A computer operating system that is specially designed to run in a provider's datacenter and be delivered to the user over the Internet or another network. Windows Azure is an example of a cloud operating system or 'cloud layer' that runs on Windows Server 2008.

cloud portability

The ability to move applications and data from one cloud provider to another. This is the opposite of "vendor lock-in".

cloud-based encryption

A service offered by cloud storage providers whereby data is transformed using encryption algorithms and is then placed on a storage cloud.

CloudFormation

AWS management tool that lets you create, manage, and update a collection of AWS resources using templates and allowing Json code for template deployment.

CloudFront

An AWS content delivery service that helps you improve the performance, reliability, and availability of your websites and applications.

cloudsourcing

Replacing traditional IT operations with lower-cost, outsourced cloud services.

CloudWatch

AWS management tool to monitor resources and applications. Aggregates data and metrics (cpu load, network throughput, disk io, etc), filters it, and provides alarm actions.

cluster-specific

Global settings that apply to a cluster on a Barracuda NextGen Control Center.

collision domain

In Ethernet, the network area within which frames that have collided are propagated. Repeaters and hubs propagate collisions. LAN switches, bridges and routers do not.

congestion

Traffic in excess of network capacity.

connection draining

AWS feature, lets you scale down EC2 instances to reduce sessions.

cross region replication

Feature of S3 storage class in AWS. Once enabled, every object uploaded to a particular S3 bucket is automatically replicated to a designated destination bucket located in a different AWS region.