Glossary

Cloud platform services, where the computing platform (operating system and associated services) is delivered as a service over the Internet by the provider.

A unit of data routed between an origin and a destination over a network.

Part of the processing of TCP IP traffic that consists of fragmenting, sending, and reassembling packets.

Additional, meaningless data adds to a packet to increase its size.

Series of characters that must be provided by the user for input to the cryptographic key generation process. Must be no less than eight logical characters and can contain spaces.

Conserves IP addresses by permitting multiple devices on a local network to be mapped to a single public IP address. An extension to network address translation (NAT).

A device to which a computer has a network connection that is relatively symmetrical and where both devices can initiate or respond to a similar set of requests.

A data storage solution where the data remains intact until it is deleted.

Component of the Barracuda Network Access Client. Centrally managed host firewall that can handle up to four different rulesets at once, depending on the policy applicable to user, machine, date, and time

Refers to a group of standards, in the format PKCS #n, where n =1 to 15. For example: Certificates can be downloaded in PKCS #12 format, which includes the private key and certificate.

A system for distributing and using public encryption keys, enabling secure data exchange over the Internet.

Logical grouping of AWS instances within a single Availability Zone.

Also called source-based routing, is used when the source IP address of the connection determines, in part or completely, which route is used.

A tool in the IAM AWS Management Console that helps you test and troubleshoot policies so you can see their effects in real-world scenarios.

A means of Media Access Control where a device may only transmit information when it is given permission to transmit by a controller device.

Network protocol for encapsulating PPP (point to point protocol) frames inside Ethernet frames.

A network protocol that is used to establish VPN tunnels.

24/7 support, offered by Barracuda Networks

A VPC subnet whose instances cannot be reached from the Internet.

Process of preparing and equipping a network or device to allow it to provide services to its users.

A firewall object with the purpose of letting the Barracuda CloudGen Firewall answer ARP requests on behalf of a remote interface. It can then accept packets and correctly forward packets to the remote host.

A shared secret that was previously shared between two parties using a secure channel before it needs to be used.

External IP address, assigned to a computing device to allow direct access over the Internet. For example, a web server, email server or any server device directly accessible from the Internet.

A subnet whose instances can be reached from the Internet.

Overall performance of the network, especially as seen by the network users. Includes things such as throughput, availability, and error rate. 

Networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA or Triple A) management for users who connect and use a network service.

Provides a way of storing the same data in different places (redundantly) on multiple hard disks.

A proprietary protocol developed by Microsoft that provides a user with a graphical interface to connect to another computer over a network connection.

AWS term, managed Relational Database Service

The time in which an action is performed.

A combination of characters or character classes and operators that describe text for matching purposes.

Creates customized reports using statistics and logs collected on Barracuda CloudGen Firewalls. Each report can be configured to use multiple appliances, custom or predefined report data templates, and a customizable layout and delivery method. 

A pricing option for EC2 instances that discounts the on-demand usage charge for instances that meet the specified parameters. Customers pay for the entire term of the instance, regardless of how they use it.

IP addresses reserved for special purposes. For example, IP addresses reserved and assigned to Azure cloud services.

Support the secondary function of Domain Name System (DNS) - the resolution of IP addresses to host names.

The HTTP Proxy directs incoming requests from other servers to clients without providing the origin details.

Numbered authorization provided by a merchant, like Barracuda Networks, to permit the return of a product.

A return to a previous state after an installation or configuration failure.

A CA-signed or self-signed public key certificate that identifies the root certificate authority (CA).

Method of traffic balancing among links/interfaces in circular order.

AWS service for DNS-based load balancing that connects user requests to EC2 instances, ELBs, S3 buckets, and Internet applications and provides health checks for monitoring or to route traffic to healthy endpoints.

In AWS, a set of routing rules that controls the traffic leaving any subnet that is associated with the route table. You can associate multiple subnets with a single route table, but a subnet can be associated with only one route table at a time.

Bridging mode where the router acts as a bridge.

Congestion control algorithm designed for fast download times such as user response times, or flow-completion times. 

One of the four storage classes in AWS. 99.9& SLA reduced redundancy storage, lower fault tolerance, stored in 1 region.

A collection of one or more access or application rules.