Glossary

Feature of Google Search that acts as an automated filter of pornography and potentially offensive content.

An online SaaS company that is best known for delivering customer relationship management (CRM) software to companies over the Internet.

The suitability of a network system to operate properly and efficiently when configured on a large scale.

Network layer protocol that provides extended routing, flow control, segmentation, connection orientation, and error correction facilities in Signaling System 7 telecommunications networks.

A wide area network controlled by software. Control and data are decoupled, simplifying both network hardware and management.

A port on a computing device that is capable of either transmitting or receiving one bit at a time. 

Certificate for a service, signed by a valid, trusted entity, that allows access without further validation. 

The layer in the OSI 7-Layer Model that is concerned with managing the resources required for the session between two computers.

Algorithm that reads its input exactly once, in order, without unbounded buffering. Generally requires O(n) time and less than O(n) storage (typically O), where n is the size of the input.

A session and user authentication service that permits a user to use one set of login credentials to access multiple applications. 

Communications protocol for signaling and controlling multimedia communication session such as voice and video calls.

Securely connects entire networks to each other, for example, connecting a branch office network to a company headquarters network.

A contractual agreement by which a service provider defines the level of service, responsibilities, priorities, and guarantees regarding availability, performance, and other aspects of the service.

Email message transfer agent that allows a Simple Mail Transfer Protocol (SMTP) server to route email to an intermediate mailserver rather than directly to the recipient's server.

Multi-Factor Authentication (MFA) solution that adds an extra security layer for a broad range of authentication clients.

IBM's communications architecture and strategy.

Capture of the state of a system at a particular point in time.

The SNMP service is used to remotely monitor the network and system state of a Barracuda NextGen Firewall using a network management system (NMS).

Feature to push notifications to mobile services and trigger actions, in Amazon Web Services (AWS).

Network package format for time synchronization, similar to NTP, only recommended for simple applications.

Changing the source address/port in the IP header of a packet. Example: changing a private IP address/port into a public address/port in the IP header of a packet leaving the network.

Unwanted email messages, usually for advertising purposes and usually sent in bulk.

A form of phishing that is more targeted. The sender of the fraudulent phishing email knows something about the intended victim, making it more likely that they will divulge personal information, like birth dates and passwords.

A protocol enabling the owner of an Internet domain to specify which computers are authorized to send mail with envelope-from addresses from their own domain. 

Type of DNS record that identifies which mail servers are permitted to send email on behalf of your domain.

Putting jobs in a buffer, a special area in memory, or on a disk where a device can access them when the device is ready. Spooling is useful because devices access data at different rates. The buffer provides a waiting station where data can rest while the slower device catches up.

Purchasing option that allows a customer to purchase unused Amazon EC2 computer capacity at a highly-reduced rate.

Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, fully managed message queuing service.

VPN client that can be installed on the Barracuda CloudGen Firewall and then accessed through the Barracuda SSL VPN web portal. (Barracuda SSL VPN is a different product.)

Hosting of a static website in Amazon S3. When a bucket is enabled for Static website hosting, all content is accessible to web browsers via the Amazon S3 website endpoint of the bucket.

Data compression technique used in wireless networks.

Partitioning of an IP address space into several smaller address spaces.

Method for handling of log file messages that are to be transferred to another system for analyzing purposes.

An intrusion into a network cable by a connector.

The TCP Proxy is placed between browser and web server and filters requests and responses in TCP streams.

A Transport and Network Layer Protocol, respectively, used for communication in the Internet and often in private networks.

A protocol to access a remote computer system, often a Unix system, over the network. Origin: Teletype Network.

Communications processor that connects asynchronous devices such as terminals, printers, hosts, and modems to any LAN or WAN that uses TCP/IP, X.25, or LAT protocols.

A simplified version of FTP (file tranfer protocol).

A date/time string to mark an occurrence of an event. 

The last part of a hostname.

The HTTP Proxy operates transparently to the clients in the network.

Cryptographic protocol that provides communications security over a computer network.

A form of cybersquatting which relies on mistakes, such as typographical errors, made by Internet users when typing a website address into a web browser. The URL the user visits usually has malicious intent

Barracuda feature that checks for common typos in the URL domain name and, if found, rewrites the URL to the correct domain name so that the user visits the intended website.

To decrypt encrypted data. The antonym of encrypt.

Product or system.

Security term for traffic monitoring based on username, host, and IP address.