Term
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Definition
| The process of comparing and matching a client's credentials with the credentials in the NOS user database to enable the client to log on to the network. |
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Term
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Definition
| A type of VPN in which clients, servers, and other hosts establish tunnels with a private network using a remote access server or VPN gateway. each client on this VPN must run VPN software to create the tunnel for, and encrypt and encapsulate data. |
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Term
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Definition
| The flexible provision of data storage, applications, or services to multiple clients over a network. This consolidates resources and is elastic, metered, self service, multiplatform, and available on demand. |
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Term
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Definition
| A user's unique identifying characteristics that enable him to authenticate with a server and gain access to network resources. The most common credentials are a username and a password. |
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Term
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Definition
| The process of dialing into a remote access server to connect with a network, be it private or public. |
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Term
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Definition
| A characteristic of cloud computing that means services can be quickly and dynamically-sometimes even automatically scaled up or down. |
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Term
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Definition
| In the context of virtualization a virtual machine operated and managed by a virtualization program. |
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Term
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Definition
| In the context of virtualization, the physical computer on which virtualization software operates and manages guests. |
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Term
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Definition
| Microsoft's virtualization software package. This operates with Windows Server 2008 and Windows Server 2008 R2 |
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Term
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Definition
| The element of virtualization software that manages multiple guest machines and their connections to the host (and by association, to a physical network). This is also known as a virtual machine. manager. |
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Term
ICA
Independent Computing Architecture |
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Definition
| The software from Citrix Systems, Inc. that when installed on a client enables the client to connect with a host computer and exchange keystrokes, mouse clicks, and screen updates. This client can work with virtually any operating system or application. |
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Term
KVM
kernel Based Virtual Machine |
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Definition
| An open source virtualization package designed for use with Linux systems. |
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Term
L2TP
Layer 2 Tunneling Protocol |
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Definition
| A protocol that encapsulates PPP data, for use on VPN's. This is based on Cisco technology and is standardized by the IETF. It is distinguished by its compatibility among different manufacturers equipment; its ability to connect between clients, routers, and servers alike; and also by the fact that it can connect nodes belonging to different layer 3 networks. |
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Term
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Definition
| A feature in cloud computing in which multiple customers share storage locations or services without knowing it. |
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Term
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Definition
| A type of cloud computing that offers clients a complete set of networking services-for example mail, web, DNS, DHCP, and remote access services plus LAN and WAN connectivity. |
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Term
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Definition
| The term describes software whose code is publicly available for use and modification. |
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Term
PPP
Point-to-Point Protocol |
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Definition
| A communications protocol that enables a workstation to connect to a server using a serial connection. This can support multiple network layer protocols and can use both asynchronous and synchronous communications. It performs compression and error correction and requires little configuration on the client workstation. |
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Term
PPPoE
Point-toPoint-Protocol-over Ethernet |
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Definition
| PPP running over an Ethernet network |
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Term
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Definition
| An arrangement in which shared and flexible data storage, applications, or services are managed on and delivered via an organization's internal network. |
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Term
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Definition
| An arrangement in which shared and flexible data storage, applications, or services are managed centrally by service providers and delivered over public transmission lines, such as the internet. Rackspace and Amazon (with its EC2 offering) are leading public cloud service providers. |
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Term
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Definition
| The dial up networking software provided with Microsoft Windows 95, 98, NT, and 2000 client operating systems. This requires software installed on both client and server, a server configured to accept incoming clients, and a client with sufficient privileges ( including username and password) on the server to access its resources. In more recent versions of Windows this has been incorporated into the RRAS (Routing and Remote Access Service). |
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Term
RDP
Remote Desktop Protocol |
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Definition
| An application Layer protocol that uses TCP/IP to transmit graphics and text quickly over a remote client-host connection. This also carries session, licensing, and encryption information. |
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Term
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Definition
| A method for connecting and logging on to a LAN from a workstation that is remote, or not physically connected to the LAN. |
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Term
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Definition
| A feature of Windows operating systems that allows a computer to act as a remote host and be controlled from a client running another Windows operating System. |
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Term
Routing and Remote Access Service
RRAS |
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Definition
| The software included with Windows operating systems that enables a server to act as a router, firewall, and remote access server, Using this a server can provide network access to multiple remote clients. |
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Term
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Definition
| A type of VPN in which VPN gateways at multiple sites encrypt and encapsulate data to exchange over a tunnel with another VPN gateways. Meanwhile, clients, servers, and other hosts on a this VPN communicate with the VPN gateway. |
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Term
SLIP
Serial Line Internet Protocol |
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Definition
| A communications protocol that enables a workstation to connect to a server using a serial connection. This can support only asynchronous communications and IP traffic and requires some configuration on the client workstation. This has been made obsolete by PPP. |
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Term
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Definition
| A client that relies on another hosts for the majority of processing hard disk resources necessary to run applications and share files over the internet. |
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Term
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Definition
| A secured virtual connection between two nodes on a VPN. |
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Term
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Definition
| The process of encapsulating one type of protocol in another. This is the way in which higher-layer data is transported over VPN's by layer 2 protocols. |
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Term
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Definition
| An image that includes the appropriate operating systems, software, hardware specifications, and application configuration necessary for a prepackaged solution to run properly on a virtual machine. |
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Term
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Definition
| AN interface connecting a vNIC with a virtual or physical network, or a port on a virtual switch. |
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Term
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Definition
| A desktop operating environment that is hosted virtually, on a different physical computer from the one the user interacts with. |
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Term
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Definition
| A server that exist as a virtual a machine, created and managed by virtualization software on a host, or physical, computer. |
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Term
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Definition
| A logically defined device that is created and manged by virtualization software and that operates at the data link layer. Ports on a virtual switch connect virtual machines with a network, whether virtual or physical, through the host's physical NIC. |
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Term
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Definition
| A workstation that exists as a virtual machine created and managed by virtualization software on a host or physical, computer. |
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Term
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Definition
| A virtualization software platform from oracle |
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Term
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Definition
| The emulation of a computer, operating system environment or application on a physical system. |
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Term
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Definition
| A computer that exists in emulation on a physical computer, or host machine, multiple. They may exist on one host where they share the physical computer's CPU, hard disk, memory, and network interfaces. |
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Term
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Definition
| A vendor that supplies the most popular types of workstation and server virtualization software. Used casually, the term VMware may also refer to the virtualization software distributed by the company. |
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Term
VNC
Virtual Network Computing |
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Definition
| An open source system that enables a remote client (or viewer) workstation to manipulate and receive screen updates from a host. Examples of VNC software include RealVNC, TightVNC, UltraVNC |
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Term
vNIC
Virtual Network Interface Card |
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Definition
| A logically defined network interface associated with a virtual machine. |
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Term
VPN
Virtual Private network |
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Definition
| A logically connected WAN that uses existing public transmission systems. These can be created through the use of software or combined software and hardware solutions. This type of network allows an organization to carve out a private WAN through the internet, serving only its offices, while keeping the data secure and isolated from other (public) traffic. |
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Term
Xaas
Anything as a service, or Everything as a Service |
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Definition
| A type of cloud computing in which the cloud assumes functions beyond networking, including for example monitoring storage, applications, and virtual desktops. |
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Term
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Definition
| An open source virtualization software platform from Citrix Systems |
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