Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

3G data cards Vodafone Mobile Connect enables 'mobile' access to email and business applications as well as browsing the Internet . Mobile access is via 3G GPRS, dependant on location and data card. Out-of-the box mobile remote access solution for the Business and Corporate market.

B

Blackberry The BlackBerry is a wireless handheld device introduced in 1999 which supports email, mobile telephone, text messaging, web browsing and other wireless information services. It delivers information over the wireless data networks of cellular telephone companies.

D

Direct push technology 'Direct Push' technology is an additional feature added to Microsoft Exchange 2003 with a new service pack that adds messaging and security features currently also known as AKU2. The Exchange Server is enabled to push Outlook messaging directly to a phone device running Windows Mobile 5, using a subscriber's existing wireless phone account.

DNS Short for Domain Name System (or Service), an Internet service that translates domain names into IP address and vice versa. Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name in the URL www.example.com might translate to the IP Number 198.105.232.4. The DNS system is, in fact, its own network. If one DNS server doesn't know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned.

Domain Name A fully qualified domain name, or FQDN, is a unique address that identifies a computer that is connected to the internet. Often the computer is a server which holds a web site. An example of a FQDN is: www.vistra.co.nz This address contains a top level domain (TLD) name, which is the suffix on the right, the "co.nz". Others are "com", "net" and "school". The internet is divided into several domains with the purpose of helping in the accurate delivery of information throughout the internet.

Domain registration A domain name must be registered by a domain registry. Domain names are registered on a first come first served basis. You can search the NZ domain name registration database online to see if your chosen domain name is available to register.

E

Email forwarding A company providing email services will sometimes offer email forwarding as part of the hosting package. The email settings are configured to forward any email received at one particular address to be auto-forwarded to another address.
Email Servers An email server is a server dedicated for email and allows for large companies to run there email systems, having many email addresses and being able to store large numbers of messages.

Enterprise email An email solution that is capable of handling both transport and storage and allows for easy extensibility.

Exchange mailbox A mailbox is the term used to describe an individual's email account and all related settings. Exchange is Microsoft's email server.

H

Hosted email A specialist applications hosting company can provide a hosted email service for other businesses. The hosting company owns, maintains and upgrades the software whilst providing access to customers. Customers benefit by not having to buy and maintain the software and still having use of a professionally maintained and spam protected service.

Hosted Exchange An externally hosted version of Microsoft Exchange email server.

Hosting To provide the infrastructure for a collection of web servers. Server World is a hosting company which means that we provide the hardware, software and communications lines required by the servers we house. The content on the servers is controlled by the customer.

I

IP Number An Internet Protocol (IP) Number - an identifier address for the destination computer on a TCP/IP network (e.g. the Internet). The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be between zero and 255. For example, 1.160.10.240 could be an IP address. Humans like to work with words rather than numbers so a Domain Name System (DNS) held on a DNS server is used to convert IP numbers to domain names.

ISP Short for Internet Service Provider, a company that provides access to the Internet. For a monthly fee, the service provider gives you a username, password and access phone number. Equipped with a modem, you can then log on to the Internet and browse the World Wide Web and send and receive email. In addition to serving individuals, ISPs also serve large companies, providing a direct connection from the company's networks to the Internet. ISPs themselves are connected to one another through Network Access Points (NAPs). ISPs are also called IAPs (Internet Access Providers)

L

Load Balancing Distributing processing and communications activity evenly across a computer network so that no single device is overwhelmed. Load balancing is especially important for networks where it's difficult to predict the number of requests that will be issued to a server. Busy Web sites typically employ two or more Web servers in a load balancing scheme. If one server starts to get swamped, requests are forwarded to another server with more capacity. Load balancing can also refer to the communications channels themselves.

M

Microsoft Exchange A professional, high-quality email server. The current version is Microsoft Exchange 2003. Vistra will soon be upgrading to Exchange 2007 when it is launched.

O

Outlook The email software used by customers who sign up to use Hosted Exchange. Vistra provides a free fully-working copy of Outlook to install on customer's PCs if they don't already have a copy.

Outlook Anywhere Vistra's hosted email service. Read about the many benefits of signing up to use Outlook Anywhere for your business.

Outlook Mobile Access Software which when used, allows users of mobile phones and PDAs to retrieve and send email from a Microsoft Exchange server and allows "Push technology" similar to BlackBerry.

Outlook Web Access Is a webmail service of Microsoft Exchange server. OWA is used to access email, calendars, contacts, tasks and other mailbox contents whilst on the move. Most of the functionality in Microsoft Outlook is also available in this web "look-alike". The most important difference is that Microsoft Outlook lets you work with e-mail, calendars etc. even when you don't have a network connection, while OWA requires a network connection to function.

P

POP Post Office Protocol. A protocol that defines an email server and a way to retrieve mail from it. Incoming messages are stored at a POP server until the user logs in and downloads the messages to their computer. The current version is POP3. While SMTP is used to transfer email messages from server to server, POP is used to collect mail with an email client from a server.

R

Remote Access The ability to log onto a network from a distant location. Generally, this implies a computer, a modem, and some remote access software to connect to the network. The remote access software dials directly into the network server. The only difference between a remote host and workstations connected directly to the network is slower data transfer speeds.

S

Server A computer that provides a specific kind of service to clients that are running software on other computers. For example, when you, the client, request a web page when using a web browser the request is passed on to the correct server on the web holding that page and the server "serves" or passes the web page back to the remote computer. Servers can be dedicated to particular tasks - it can be a web server serving web pages or an email server handling email. Alternatively, single server machine could have several different server software packages running on it, thus providing many different services to clients on the network.

Spam Spam is unsolicited email, also known as Unsolicited Bulk Email (UBE) and Unsolicited Commercial Email (UCE). Not all unsolicited email is spam, however. Most spam is sent in bulk to a large number of email addresses and advertises some product or-far less often-political viewpoint. Spam is an email message that you did not ask for and do not want from somebody you do not know, who wants to sell you something.

Streaming A technique for transferring data so that it can be processed as a steady and continuous stream. Streaming technologies are becoming increasingly important with the growth the use of multimedia files on the Internet. With streaming, the clients browser or plug-in can start displaying the data before the entire file has been transmitted. For streaming to work, the client receiving the data must be able to collect the data and send it as a steady stream to the application that is processing the data and converting it to sound or pictures. If the client receives the data more quickly than required, it needs to save the excess data in a buffer. If the data doesn't come quickly enough, however, the presentation of the data will not be smooth.

T

TCP/IP TCP - Transmission Control Protocol - A system for breaking data into packets which can be sent over the internet by the Internet Protocol (IP). IP - Internet Protocol - A system which governs how data packets are sent over the Internet. IP determines the destination of the packet, whereas TCP ensures that all the packets are delivered.

U

URL Abbreviation of Uniform Resource Locator, the global address of documents and other resources on the World Wide Web. The first part of the address indicates what protocol to use (e.g. the "http"), and the second part specifies the IP address or the domain name (e.g. "vistra.co.nz") where the resource is located.

W

WAN A wide area network or WAN is a computer network covering a wide geographical area, involving a vast array of computers. WANs are used to connect local area networks (LANs) together, so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private. Others, built by Internet service providers provide connections from an organization's LAN to the Internet.

WAP WAP was designed to provide services equivalent to a web browser with some mobile-specific additions, being specifically designed to address the limitations of very small portable devices. It is now the protocol used for the majority of the world's mobile Internet sites, otherwise known as wap-sites (WAPsites, WAP sites, wapsites, etc.).

Windows Mobile Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices. Devices which run Windows Mobile include Pocket PCs, Smartphones and PDAs. It is designed to be somewhat similar to desktop versions of Windows.