LaCie Wireless Space User Manual

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Contents

LaCie Wireless Space User Manual Manual pdf 93 page image

LaCie Wireless Space • DESIGN BY NEIL POULTON GlossaryUser Manual page 935. GlossaryMany networking and wireless terms may appear new or a bit chal-lenging to follow. This small glossary of networking acronyms andprotocols offers a simple reference to aid in setting up and maintain-ing your Wireless Space. Due to the complexity of networking termi-nology, this glossary intends only to provide introductory definitions.802.11b/g/n – The number 802.11 is the IEEE (Institute of Electri-cal and Electronics Engineers) term for the wireless signal on a landarea network (WLAN). The letters that follow indicate the levels ofstrength. The following lists the maximum throughputs for b and g:✦ b=11 Mb/s✦ g=54 Mb/sn is the most recent protocol:✦ n=well over 50 Mb/sAccess Point - A device attached to an existing network (home, com-pany, cell phone, etc.) that can extend the service. The WirelessSpace, once attached to a network, can become an access point for1Gb Ethernet or wireless connectivity. More commonly, the refer-ence is for a wireless access point.AFP (Apple Filing Protocol) - Similar to SMB/CIFS and NFS, AFP isa protocol used for requests over a network. Requests could meanaccessing shared files, volumes, and devices (such as printers). AFPis used for Apple-based systems, Mac OS 9 and X.DHCP (Dynamic Host Configuration Protocol) - A computer requiresan identity when it connects to a network, otherwise access to theInternet as well as company or home servers will not be possible.That identity is called an IP (Internet Protocol) address, which may beenabled manually (Static IP) in the operating system network settingsor assigned by a network management device, such as a DHCPdevice. Though a generic term, the device could be a server oran active switch, as found in business environments; or, a cable orDSL modem offered by an Internet provider. The Wireless Space hasthe ability to assign IP addresses dynamically, which means it canbe configured as a DHCP server. An example of an IP address is192.168.10.1DHCP Leases – Each time a computer on the network boots, it musthave an IP address to communicate with other systems and to ac-cess the Internet. With a DHCP server, the computer is assigned anIP address as it boots onto the network. The lease is the amount oftime that the client can use a specific IP address. The leases can bestatic (always the same address) or dynamic, (changing periodicallyas configured in the DHCP server settings).DHCP Server Range Start IP/Range End IP - The range of addressesthat a DHCP server may assign to the attached systems.DLNA™ (Digital Living Network Alliance) - A standard (based onUPnP) widely embraced by consumer electronic manufacturers toallow entertainment devices within the home to share movies, music,and photos across a home network.DMZ (Demilitarized Zone) - Email and web servers in a companyfind it difficult to filter all Internet traffic since it would make internaland external communication quite difficult. For example, sales of acompany’s services require a web site for potential customers to visitand incoming/outgoing email for client inquiries. In most cases, abusiness must have an open line of communication to the outsideworld. However, this also places a network in danger of attack, in-cluding all the computers connected to heavily trafficked servers.Taken from the military term, a DMZ allows a network to placethose computers or servers with the most exposure to outside traf-fic (chiefly, the Internet) on their own subnetwork (see netmask). Tostave off potential security risks, firewall protection is placed betweenthe DMZ subnetwork and the servers and computers on the internalnetwork. For home use, the DMZ is an advanced feature that canbe used to filter outside Internet traffic through one IP address; forexample, a computer or a home server.DNS (Domain Name System or Domain Name Server) - All emailand web addresses are domain names. Every web site and emailaccount has a specific place within a server that has a unique IPaddress (such as 192.168.54.25, IPv4; or 2001:db8:1f70::999:de8:7648:6e8, IPv6). However, when we launch a favorite browserto buy a new hard drive or send an email, we do not type lengthy,hard to remember numerical addresses. Instead, we use companynames, www.lacie.com, or email addresses, sales@lacie.com. Thedomain names in these examples are “lacie.com” or “@lacie.com”.The server manages the tie between the IP address it requires for anetwork identity and the domain name for communication.DSL (Digital Subscriber Line) - Broadband data transmitted digitallyover telephone wires. The local telephone company provides a ser-vice that includes Internet, telephone, and, for some, cable tele-vision. For access to the Internet, telephone companies generallyprovide an adapter or DSL modem for connection to a computervia Ethernet.Dynamic DNS - This moves DNS hosting a bit further as it providesaccess to domain names hosted on servers with varying (hence, dy-namic) IP addresses. This means that web sites are not forced tomaintain a single IP address, but can be managed within a networkthat uses DHCP to assign an identity. The Dynamic DNS host issmart enough to read the domain name and find the IP address towhich it belongs. Dynamic DNS is a great tool for accessing homenetwork servers, such as the Wireless Space, from anywhere outsidethe home.