Find the definitions for Linux VPS hosting terms used throughout the VPSLink site.
An Open Source webserver.
Apache may be used to serve static HTML files on Link-2+ plans or dynamic database-driven sites on Link-3+ plans.
A Linux distribution released in March, 2002.
Offered for use with the OpenVZ virtualization platform at VPSLink.
A cross-platform Open Source telephony project.
May be installed with the Xen virtualization platform at VPSLink for use with SIP trunking.
A primary branch of high-capacity internet routing infrastructure.
See the datacenter page for details on VPSLink's network peering and infrastructure.
See also: Internet Backbone at Wikipedia
A copy of the entire filesystem for a server which is stored on separate hardware for hardware failure and disaster recovery purposes.
See the support policies page for details on VPSLink's backup policies and procedures.
See also: Backup Guides at the VPSLink Wiki
The amount of data (measured in bytes) transmitted by a server.
See the VPS hosting plan page for hosting plan allocations.
See also: Bandwidth article at Wikipedia
The shell commonly used to interact with the Linux operating system.
Included as the default shell for all Linux distributions at VPSLink.
See also: Bash article at Wikipedia
A Linux distribution based upon Red Hat Enterprise Linux. Originally released in December, 2003.
Offered for use on OpenVZ or Xen virtualization platforms at VPSLink.
The amount of time spent processing a program (not including time spent waiting for input).
See also: CPU Time article at Wikipedia
The cloud computing article at Wikipedia defines cloud computing as follows: "Cloud computing is Internet-based development and use of computer technology."
VPSLink does not advertise "cloud computing" services because there is not a clearly-defined, generally accepted, or functional distinction between "cloud computing" and any other kind of hosting.
A service in which a customer's server is maintained in a commercial datacenter with no expectation of software support.
VPSLink's service is similar in the sense that subscribers have full root access and application software is unmanaged, however, VPSLink will handle all hardware and networking issues (which greatly reduces staffing, maintenance, and hardware overhead) and server management is facilitated by the Server Control Center
A type of interface (compare to Graphical User Interface) in which all interaction with the underlying operating system occurs through keyboard input.
See also: Command-line interface article at Wikipedia
A standardized protocol for accepting requests which are passed from one application (in most cases a webserver like Apache, lighttpd, or nginx) to another (such as PHP, Perl, Ruby, or Python). CGI has been improved upon with Fast CGI (fCGI) and Simple CGI (SCGI).
See also: Common Gateway Interface article at Wikipedia
An application which allows users to create and manage content. Common variations include blogs, wikis, and forums.
The wide variety of content management systems available with application stacks such as Linux/Apache/MySQL/PHP/Perl (LAMP) and Lighttpd/MySQL/PHP/Python (LMPP) make Linux VPS hosting at VPSLink (and the flexibility afforded by root access) a reliable solution for CMS hosting.
See also: List of content management systems at Wikipedia
A web interface which provides low-level VPS start/stop/restart and DNS controls.
See the Control Center page for full details
See also: Control panel (web hosting) article at Wikipedia
VPSLink offers cPanel licensing with the CentOS Linux distribution on Link-4+ plans under the OpenVZ or Xen virtualization platforms.
Recommended for Link-3+ plans at VPSLink.
A program which runs outside of a direct user-initiated context. Webserver applications such as Apache and database applications like MySQL which remain resident in memory to respond to requests are daemons.
See also: Daemon (computer software) article at Wikipedia
A Linux distribution released in August, 1993.
Debian is one of the more popular Linux operating systems offered at VPSLink and is available on both the OpenVZ and Xen virtualization platforms.
A type of hosting service similar to colocation in which a subscriber rents the use of a physical server which is usually located within a datacenter.
Compare to the Virtual Private Server (VPS) hosting service offered at VPSLink.
See also: Dedicated hosting service article at Wikipedia
DirectAdmin is available at VPSLink on the OpenVZ virtualization platform with a Link-4+ plan.
The amount of data (measured in bytes) stored on the server's filesystem.
Note that, in the context of VPS hosting, disk space is measured in Gigabytes and will always be allocated to core operating system files (usually under 1 GB) and, on the Xen platform, disk space equal to two times the RAM will be allocated to swap space.
An underlying internet system which provides a mapping between domain names and the IP addresses used for routing.
If a DNS server application is installed on your VPS, you can manage zones through configuration files; if you elect to use the VPSLink DNS, you can manage your configuration through the Control Center. (Reverse DNS (rDNS) is managed at the Control Center in either case)
See also: Domain Name System article at Wikipedia
A specification for encoding documents and flat file databases. See HTML for details on one implementation of XML.
An Instant Messaging (IM) protocol (formerly known as "Jabber") established in 1999.
Recommended for a Link-2+ plan at VPSLink.
VPSLink does not offer Fantastico with WHM/cPanel licensing, however, Fantastico licensing may be acquired directly from its publisher Netenberg.
See also: Fantastico (web hosting) article at Wikipedia
A Linux distribution released in November, 2003.
Offered for use on OpenVZ and Xen virtualization platforms at VPSLink.
A TCP/IP protocol intended for transferring data.
File Transfer Protocol article at Wikipedia
Very similar to Virtual Network Computing (VNC). Available at VPSLink on Link-4+ plans with a pre-configured Ubuntu template.
A type of hosting service which includes support for hardware, operating system, and application-level installation and configuration. Generally considered a premium service.
Compare to unmanaged hosting as offered at VPSLink.
See also: Managed dedicated server article at Wikipedia
A Linux distribution authored by Daniel Robbins in December, 1999. Gentoo relies heavily upon code compilation and is a popular Linux operating system amongst software developers.
A Link-3 (or better) plan is recommended for the use of Gentoo at VPSLink.
A unit of measure for data equivalent to one billion (1,000,000,000) bytes. The gigabyte unit was formerly understood in some uses to mean 10243 bytes (known as a "gibibyte"), however, the billion-byte gigabyte became the de facto standard when it was accepted by the IEEE in 2000.
A type of user interface which allows the user to interact with the underlying operating system in more ways than typing (compare to Command-Line Interface (CLI)). The X Window System is the basis for common Linux desktop environments like GNOME and KDE.
See also: Graphical user interface article at Wikipedia
See also: Server (computing) article at Wikipedia
A standard for document presentation markup syntax. Primarily used to present text and multimedia content. The HTML specification is managed by the World Wide Web Consortium (W3C).
See also: Instant messaging article at Wikipedia
A low-level protocol used in the implementation of Internet Protocol (IP). ICMP is exposed in two valuable applications - ping (used to determine whether a Host is online and responding to requests) and traceroute (used to determine the routeable path to a host, if one exists).
A popular e-mail retrieval protocol (compare to Post Office Protocol (POP)) commonly served on port 143.
The packet-switched network routing protocol commonly used in combination with either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) to communicate application data over the internet.
A text-based form of real-time communication conducted over the internet (compare to Instant Messaging (IM)). IRC client software may be run on any VPSLink plan, however, IRC server software is recommended for Link-2+ plans.
See also: Internet Relay Chat article at Wikipedia
A unique binary number designated to each device connected to the internet. Expressed in decimal (IPv4 - 127.0.0.1) or hexadecimal (IPv6 - 0:0:ffff:7f00:1) notation.
See also: IP address article at Wikipedia
A software development platform (including a programming language and a "virtual machine" intended to support cross-platform application deployment) developed by Sun Microsystems in the 1990's.
A Link-4+ plan on the Xen virtualization platform is recommended for the development and use of Java applications.
A Virtualization Platform based in the Linux kernel which offers hardware-assisted virtualization and limited paravirtualization on Intel VT and AMD-V chipsets.
An Open Source HTTP server (commonly pronounced "lighty") designed for performance and reliability. Lighttpd is presently gaining in popularity over Apache with the appearance of the Lighttpd/MySQL/PHP/Python (LMPP) stack as an application platform.
VPSLink offers a preconfigured lighttpd/Debian operating system template for use with all plan levels.
VPSLink offers a preconfigured LMPP/Debian operating system template for use with all plan levels.
An application protocol which supports client access to directory services (typically over port 389) over TCP/IP.
See also: Lightweight Directory Access Protocol article at Wikipedia
An operating system developed by Linus Torvalds in 1991. Linux evolved from MINIX (an Open Source derivative of UNIX).
You do not need to know the history of Linux to run a Virtual Private Server, though it helps to have a rabid interest in all things Linux. Knowledge is power.
See also: LAMP (software bundle) article at Wikipedia
A daemon which transfers e-mail messages between servers.
See also: Message transfer agent article at Wikipedia
A client application used to read e-mail messages retrieved from a server.
See also: Email client article at Wikipedia
A unit of measure for data equivalent to one million (1,000,000) bytes. The megabyte was formerly understood in some uses to mean 10242 bytes, however, the million-byte megabyte became the de facto standard in 2007 when it was recognized as such by IEC, IEEE, EU, and NIST.
See also: Megabyte article at Wikipedia
A server which provides a copy of material hosted elsewhere (generally for purposes of redundancy under high load). May also be used to provide edge-caching.
See also: Mirror (computing) article at Wikipedia
A Link-3+ plan is recommended for MySQL use at VPSLink.
A DNS server.
Although any VPSLink plan level may be used to run a DNS daemon, VPSLink offers a full-featured hosted DNS service through the Control Center to allow plans with insufficient memory allocations for a DNS daemon to host domains.
See also: Name server article at Wikipedia
See Hardware Node.
A virtualization platform based upon the commercial Virtuozzo virtualization software. OpenVZ hosts individual virtual private servers by managing calls to the kernel - it does not offer complete isolation, as each virtual private server must be using the same Linux kernel (compare to Xen paravirtualization), however, the performance penalties associated with OpenVZ virtualization are less severe.
A method of distributing and licensing software such that its source code is publicly available for review.
Advantages attributed to open source software include improved security as a result of community code review, rapid release and bugfix cycles, and the fact that many open source applications and operating systems are freely available and licensed such that no fees are associated with use.
See also: Open source article at Wikipedia
Linux distributions commonly include a package management system to facilitate the installation of application software (often pre-packaged in binary format).
Package managers available for Linux distributions at VPSLink include:
See also: Package management system article at Wikipedia
A programming language developed by Larry Wall in 1987 and adapted to a wide variety of uses - from system administration scripting to web application development.
Perl is available (and often installed by default) with all VPSLink operating system templates.
A scripting language developed by Rasmus Lerdorf in 1995 and primarily used for web development (though a Command-Line Interface (CLI) has since been added). The "PHP" acronym recursively stands for "PHP: Hypertext Processor".
An e-mail retrieval protocol (compare to Internet Message Access Protocol (IMAP)) commonly served on port 110.
See also: Post Office Protocol article at Wikipedia
A Link-3+ plan is recommended for PostgreSQL use at VPSLink.
As VPSLink maintains a large pool of hardware nodes, new service is provisioned instantly upon order acceptance and payment verification.
See also: Provisioning article at Wikipedia
An intermediary server which relays requests between two points. Proxies are used for a wide variety of reasons including security and anonymity.
See also: Proxy server article at Wikipedia
A programming language developed by Guido van Rossum in 1991. Python differs from other languages with the use of indentation for conditional and iterative block delimiters.
No terms on file.
Memory available to applications at run-time. Unlike disk space, RAM is volatile and information held in RAM will not persist if the VPS is stopped or restarted.
See also: Random-access memory article at Wikipedia
An array of hard disks synchronized to provide one or more of the following: mirroring (copies of the data are stored on multiple hard disks), striping (data is split across multiple hard disks to allow for synchronous reading), and fault tolerance (data is checked for parity and automatically corrected if corruption is encountered).
VPSLink uses RAID-5 (striped disks with distributed parity) arrays on the hardware configuration for Link-1 through Link-3 plans; RAID-10 (mirrored and striped disks) arrays are used for plans Link-4 and Link-5.
See also: RAID article at Wikipedia
A document published by the Internet Engineering Task Force which describes the intended operation of Internet-related protocols and systems.
A variety of hosting specifically intended for resale to other hosting customers. Reseller hosting solutions typically include a control panel to simplify system administration, account management, and hosting functions for customers.
Where "forward" DNS maps human-recognizable names to the IP addresses of servers, reverse DNS maps the IP addresses of servers to human-recognizable names. An IP address may have only one reverse DNS PTR record associated with it. PTR records are commonly used as part of e-mail server identification.
The Control Center provides reverse DNS controls which allow subscribers to set and modify the reverse DNS entries for IP addresses assigned to their VPS.
By default, the root account is the administrator account on any Linux system.
All VPSLink plans include access to the root account.
See also: Superuser article at Wikipedia
A secure protocol for transferring files over a network. Compare to File Transfer Protocol (FTP).
A secure protocol for transferring files over a network. Compare to File Transfer Protocol (FTP).
A protocol used to exchange data over a network and the most commonly-used software for Linux server administration.
Root access over SSH is included with every VPSLink plan.
The protocol used by Mail Transfer Agents to transmit messages between servers.
A Link-2 plan (or better) is recommended for e-mail server applications at VPSLink.
See also: Simple Mail Transfer Protocol article at Wikipedia
A Linux distribution authored by Patrick Volkerding in 1993.
Offered for use on the OpenVZ virtualization platform at VPSLink.
See also: SQL article at Wikipedia
The Xen platform at VPSLink supports the use of swap space, however, relying upon swap space for day-to-day operations is not recommended as disk I/O is considerably slower than RAM access.
A protocol used to exchange data over a network; formerly used for server administration. Superseded by Secure Shell (SSH) for server administration but still used for other Command-Line Interface (CLI) applications.
See also: Telnet article at Wikipedia
A unit of measure for data equivalent to one trillion (1,000,000,000,000) bytes.
See also: Terabyte article at Wikipedia
A core, low-level Internet protocol which governs stateful connections, segment size, packet order, and rate of data exchange between two hosts.
A cryptographically-secured protocol for exchanging information over a network. The TLS protocol supersedes SSL as the standard for electronic commerce security over HTTP.
See also: Transport Layer Security article at Wikipedia
A Linux distribution released on October 20th, 2004.
Offered for use on OpenVZ or Xen virtualization platforms at VPSLink.
A variety of hosting support arrangement in which the subscriber is given root access and is expected to administer his or her own service. Compare to fully-managed hosting (which generally does not include root access).
VPSLink offers unmanaged hosting with 24/7/365 support for hardware and network issues which prevent or interfere with administrator access to the virtual private server.
The measure of time a server is accessible from the network and capable of responding to requests.
A low-level protocol which offers stateless data transmission (compare to TCP) in which packets may be received out of order, duplicated, or in an otherwise unreliable fashion. Popular for "real-time" applications like video streaming in which high throughput and low overhead are considered the highest priority.
See also: User Datagram Protocol article at Wikipedia
A Graphical User Interface (GUI) implementation which relies upon remote framebuffer protocol to provide a remote user or users with access to a "desktop" GUI on a server.
A network configuration which simulates hardware links between networked computers and secure tunnels are used to exchange data over the internet.
A Link-2 plan (or better) is recommended for VPN applications at VPSLink.
A server running within a virtual environment. The server's interactions with underlying hardware are abstracted such that the server's operating system behaves as though it were running on traditional hardware, however, the server is actually interacting with a virtualization platform that negotiates requests to hardware resources for multiple servers running on the same hardware.
A hardware configuration, piece of software, or combination thereof which supports the creation of virtual environments.
See also: OpenVZ vs Xen comparison page
VPSLink operating system templates do not include the X Window System by default and lower-level plans do not have sufficient resources to support a GUI: familiarity with the BASH shell is recommended. A Link-4 plan (or better) is recommended for the use of Virtual Network Computing (VNC) or FreeNX.
A virtualization platform which began as a research project at the University of Cambridge and was released as open source software in 2003. Xen utilizes paravirtualization to hook calls to the hardware node's resources (compare to OpenVZ virtualization).
No terms on file.