Glossary
From SymetriQ_KB
Contents |
Hypervisor
A hypervisor is a virtualization platform that allows multiple operating systems to run on a host computer at the same time.
Some examples are:
KVM
KVM is a virtual Keyboard, Video and Mouse that allows you to work on your virtual machines in your Virtual Data Centre as if you are working on a physical machine. For Windows servers you get the standard Windows desktop, for Linux virtual machines you will get a command line interface or if installed a graphical user interface.
RDP
Remote Desktop Protocol (RDP) is a multi-channel protocol that allows a user to connect to a computer running Microsoft Terminal Services. Clients exist for most versions of Windows and other operating systems. The server listens by default on TCP port 3389. Microsoft refers to the official RDP client software as either as Remote Desktop Connection (RDC) or Terminal Services Client (TSC).
SCP
Secure Copy or SCP is a means of securely transferring computer fiels between a local and a remote host or between two remote hosts, using the Secure Shell (SSH) protocol.
The SCP protocol, which runs on port 22, allows encrypted data transfer to avoid potential packet sniffers extracting usable information from the data packets. The protocol itself does not provide authentication and security; it relies on the underlying protocol, SSH, to provide these features.
SCP can interactively request any passwords or passphrases required to make a connection to a remote host. The SCP protocol implements file transfers only. It does so by connecting to the host using SSH and there executes an SCP server (scp). The SCP server program is typically the same program as the SCP client.
For most applications, the SCP protocol is superseded by the more comprehensive SFTP protocol, which is also based on SSH.
Space
A space is a portal zone that you can create for your customers. Your customers then have the same interface as you have. For each space that you create, you automatically create a new customer that has the name of the space.
Only accounts with administrator rights can create spaces.
SSH
Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices
Used primarily on Linux and Unix based systems to access shell accounts, SSH was designed as a replacement for TELNET and other insecure remote shells, which sent information, notably passwords, in plaintext, leaving them open to interception. The encryption used by SSH provides confidentiality and integrity of data over an insecure network, such as the Internet.
Telnet
TELNET (TELecommunication NETwork) is a network protocol used on the internet or LAN connections. It was developed in 1969 beginning with RFC 15 and standardized as IETF STD 8 one of the first Internet standards.
Currently it's not often being used because of the limited security of the Telnet protocol.
VDC (Virtual Data Centre)
Also known as VPDC (Virtual Private Data Centre)
The VDC Portal is a web-based, drag and drop interface for use by end-users to design, provision and manage their Virtual Data Centre. Users pay for resources by purchasing credits from the service provider.
Using credits, users may drag and drop a wide variety of virtual servers and appliances, network components and storage devices onto the portal design interface. A-Server supports pre-defined Linux and Windows web servers, email servers, VoIP servers, routers, LANs and even virtual NAS and SAN devices.
VMachine
A VMachine is a virtual machine in your Virtual Data Center. To manage a VMachine, you can access it using several protocols, such as KVM, SSH, telnet or RDP, depending on the type of VMachine.
VNC
In computing, Virtual Network Computing (VNC) is a graphical desktop sharing system which uses the RFB protocol to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical screen updates back in the other direction, over a network.
VNC is platform-independent — a VNC viewer on any operating systemusually connects to a VNC server on any other operating system. There are clients and servers for almost all GUI operating systems and for Java. Multiple clients may connect to a VNC server at the same time. Popular uses for this technology include remote technical support and accessing files on one's work computer from one's home computer, or vice versa.
