Glossary

GUI and 4i Edge X

Box

A box is an element of the page of a service, that contains several configuration option.

Client

A user connecting to the hotspot. It is sometimes called hotspot user.

Dual-listbox

This widget is composed by two columns containing zero or more items and is used in the Switchboard to allow for a quicker and easier set up of groups of items (like e.g., users, devices, applications), allowing all items to be moved at once from the Available to the strong:`Selected column. The widget features also two small textboxes on top of teach colums, used to filter items from the respective column.

GREEN IP

It is the IP Address of the GREEN zone, i.e., of the LAN in which the 4i Edge X is located.

Module

By module it is intended each of the items displayed in the Main Navigation bar (System, Status, Logs and so on), which groups together a set of functionalities. A module has a menu on the left-hand side.

Multiselect box

A special box which displays a list of available items on the right-hand side, a list of ‘active’ or selected items on the left-hand side, and a search textbox on top. Some also allow to specify, for each allowed item, a characteristic (e.g., that the item is required or optional).

Pagination

Pagination allows table containing lot of entries to be split into two or more parts when the number of entries exceeds the pagination value, showing only one part at a time. Currently available only for the hotspot and the logs, this value can be defined under Hotspot ‣ Settings and Menubar ‣ Logs ‣ Settings. It is possible to browse through the pages by clicking on the First, Previous, Next, and Last links above the table.

Plugin

Plugins are the boxes present in the dashboard.

RED IP

It is the IP address assumed by the RED interface, i.e., the one communicating with the outside. It is not present when the Stealth Uplink is employed

Tab

Tabs are sub-pages of a main service that are used to split and keep organised all the configuration option of that service.

The Zones

Each of the 4 subnets managed by the 4i Edge X: GREEN, RED, BLUE, and ORANGE.

User

Anyone who uses the 4i Edge X.

Widget

An element of a GUI that displays information and can sometimes be interactive, i.e., a user can interact with it to change the information present within it.

Network

ARP

The Address Resolution Protocol maps MAC addresses to IP addresses.

BIND

The Berkeley Internet Name Domain is the de-factio standard DNS service on Unix and Linus systems.

Bridge

Network Bridge

A network device connecting two or more network segments, without routing packets from one segment to the other.

Checksum

The checksum is the outcome of an algorithm, usually in form of an alphanumeric string, that is used to verify the integrity of data exchanged over the Internet. Some popular algorithm used with this purpose are MD5 and SHA.

Client

A computer or software program that requires some services from a server.

Default Route

The route used to send packets when no more specific rule exists.

DHCP

The Dynamic Host Configuration Protocol is used to dynamically allocate various IP parameters within a network segment to all devices that connect to that network. Example of those parameters include a unique IP address for each device, routing table information, time server, name server.

IP Address

An IP address uniquely identifies a device (workstation, server, printer, etc) within a network. Devices may have different IP Addresses.

Local Area Network

LAN

A Local area network is a network which is intended for private use. Different LANs, situated in different places can be connected using, e.g., a VPN connection.

Server

A device (like e.g., a computer, printer, file server etc.) that provides some services and can be used by users of a network.

Smarthost

An SMTP relay server that instead of delivering an e-mail directly to the recipient, sends it to an intermediate server that will carry out the final delivery. Smarthosts usually require authentication, as oppesed to open relay server, who do not.

User Agent

Useragent

The user agent of a web browser is the string that every browser sends as identification when requesting a web page. It contains several information about the browser and the system. For example:

Mozilla/5.0 (X11; U; Linux i586; it; rv:5.0) Gecko/20100101 Firefox/5.0

A complete list of user agent strings can be found on the http://www.useragentstring.com/ website.