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Glossary
- SafeSearch
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Feature of Google Search that acts as an automated filter of pornography and potentially offensive content.
- Salesforce
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An online SaaS company that is best known for delivering customer relationship management (CRM) software to companies over the Internet.
- scalability
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The suitability of a network system to operate properly and efficiently when configured on a large scale.
- SCCP
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Network layer protocol that provides extended routing, flow control, segmentation, connection orientation, and error correction facilities in Signaling System 7 telecommunications networks.
- SD-WAN
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A wide area network controlled by software. Control and data are decoupled, simplifying both network hardware and management.
- serial port
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A port on a computing device that is capable of either transmitting or receiving one bit at a time.
- service certificate
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Certificate for a service, signed by a valid, trusted entity, that allows access without further validation.
- session layer
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The layer in the OSI 7-Layer Model that is concerned with managing the resources required for the session between two computers.
- single pass
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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.
- Single Sign-On
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A session and user authentication service that permits a user to use one set of login credentials to access multiple applications.
- SIP
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Communications protocol for signaling and controlling multimedia communication session such as voice and video calls.
- SIP Proxy service
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In VoIP (Voice over Internet Protocol) technology, SIP proxies are elements that route SIP requests to user agent servers and SIP responses to user agent clients. The SIP Proxy service on the Barracuda NextGen Firewall helps establish a VOIP call with an external SIP provider.
- Site-to-Site VPN
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Securely connects entire networks to each other, for example, connecting a branch office network to a company headquarters network.
- SLA
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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.
- SMB
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Operates as an application-layer network protocol mainly used for providing shared access to files, printers, and serial ports and miscellaneous communications between nodes on a network.
- SMS Passcode
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Multi-Factor Authentication (MFA) solution that adds an extra security layer for a broad range of authentication clients.
- SNA
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IBM's communications architecture and strategy.
- snapshot
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Capture of the state of a system at a particular point in time.
- SNMP service
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The SNMP service is used to remotely monitor the network and system state of a Barracuda NextGen Firewall using a network management system (NMS).
- SNS
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Feature to push notifications to mobile services and trigger actions, in Amazon Web Services (AWS).
- SNTP
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Network package format for time synchronization, similar to NTP, only recommended for simple applications.
- Source NAT
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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.
- Spot Instance
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Purchasing option that allows a customer to purchase unused Amazon EC2 computer capacity at a highly-reduced rate.
- SQS
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Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, fully managed message queuing service.
- SSL VPN client
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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.)
- static website hosting
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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.
- stream and packet compression
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Data compression technique used in wireless networks.
- subnetting
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Partitioning of an IP address space into several smaller address spaces.
- syslog streaming
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Method for handling of log file messages that are to be transferred to another system for analyzing purposes.
- tap
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An intrusion into a network cable by a connector.
- TCP Proxy
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The TCP Proxy is placed between browser and web server and filters requests and responses in TCP streams.
- TCP/IP
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A Transport and Network Layer Protocol, respectively, used for communication in the Internet and often in private networks.
- Telnet
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A protocol to access a remote computer system, often a Unix system, over the network. Origin: Teletype Network.
- terminal server
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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.
- TFTP
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A simplified version of FTP (file tranfer protocol).
- timestamp
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A date/time string to mark an occurrence of an event.
- transparent proxy
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The HTTP Proxy operates transparently to the clients in the network.
- Transport Layer Security
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Cryptographic protocol that provides communications security over a computer network.
- unencrypt
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To decrypt encrypted data. The antonym of encrypt.
- unit
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Product or system.
- User Identity Awareness
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Security term for traffic monitoring based on username, host, and IP address.