Specifications
Table Of Contents
- About This Document
- Understanding Networking and IP Addressing
- Introduction to Networking
- Networking using IP
- Niagara Considerations
- Additional Information
- Configuration and Troubleshooting Tools
- Connecting on a LAN
- Connecting with Direct Dial
- Connecting to an ISP
- Using Security Technologies
- Configuration Files Used for Communication
- Glossary
- Index
Niagara Release 2.3
Niagara Networking & Connectivity Guide
GL-4
Glossary
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domain name system See DNS.
driver A software program that acts as a translator between a computer and another device.
Drivers are specific to each device, as they contain special commands for that device.
Many devices require drivers, such as printers, hard drivers, modems and keyboards.
dynamic DNS See DDNS.
dynamic IP address An IP address that is dynamically assigned to the host from a server. Typically, a
dynamic address also changes with some frequency. Common technologies for
dynamic assignment include DHCP and BootP. See static IP address.
E
engineering PC Any PC in the Niagara environment that has the JDE loaded on it. This could be a
Web Supervisor PC (which is used primarily as a server for Niagara integrations), or
it could be a technician’s PC, used strictly to maintain Niagara hosts.
Ethernet A popular LAN architecture based on the IEEE 802.3 networking standard.
Networking standards describe how data is accessed and transferred over the
physical media such as NICs and cabling.
F
firewall A firewall provides network security by restricting access to or from the network. A
firewall can be a packaged unit sold as a complete firewall solution, or it could be a
software package that is loaded on an existing computer situated such that it is the
mediator between the network and the Internet.
FQDN See fully qualified domain name.
fully qualified domain
name
A fully qualified domain name is composed of a host name, a domain name, and a
top-level domain. For example, the FQDN mail.bbs.uk is a fully qualified domain
name with mail being the host, bbs being the domain, and uk being the top level
domain.
G
Gx object Graphics object, meaning any of the 11 types of Gx primitive objects you can add in
a GxPage container to create a graphic viewable both in WorkPlace Pro and a Web
browser. Gx object types include GxBarGraph, GxBoolean, GxDamper, GxFan,
GxFloat, GxImage, GxInteger, GxPipe, GxSpectrum, GxText, and GxTimePlot.