WordPress Virtual Private Server Glossary

  • Virtual Private Server – A VPS runs its own copy of an operating system, and customers have superuser-level access to that operating system instance, so they can install almost any software that runs on that OS. For many purposes they are functionally equivalent to a dedicated physical server, and being software-defined, are able to be much more easily created and configured. They are priced much lower than an equivalent physical server, but as they share the underlying physical hardware with other VPSs, performance may be lower, and may depend on the workload of other instances on the same hardware node.

    Virtual Private Server VPS (Windows and Linux)
    Virtual private server
  • Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network.[1] The best known example application is for remote login to computer systems by users.SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server.[2] Common applications include remote command-linelogin and remote command execution, but any network service can be secured with SSH. The protocol specification distinguishes between two major versions, referred to as SSH-1 and SSH-2.
    SSH Key Exchange id_rsa id_dsa
    SSH Key Exchange Diagram

    The most visible application of the protocol is for access to shell accounts on Unix-like operating systems, but it sees some limited use on Windows as well. In 2015, Microsoft announced that they would include native support for SSH in a future release.[3]

    SSH was designed as a replacement for Telnet and for unsecured remote shell protocols such as the Berkeley rloginrsh, and rexec protocols. Those protocols send information, notably passwords, in plaintext, rendering them susceptible to interception and disclosure using packet analysis.[4] The encryption used by SSH is intended to provide confidentiality and integrity of data over an unsecured network, such as the Internet, although files leaked by Edward Snowden indicate that the National Security Agency can sometimes decrypt SSH, allowing them to read the content of SSH sessions.[5]

  • DigitalOcean, Inc. is an American cloud infrastructure provider that provisions virtual servers for software developers.[1] The company is headquartered in New York City and possesses data centersworldwide.[2] DigitalOcean provides cloud services that help developers deploy and scale applications that run on multiple computers simultaneously.DigitalOcean was founded in 2011 by Ben Uretsky, Moisey Uretsky, Mitch Wainer, Jeff Carr, and Alec Hartman.[3] The company received $123.21 million in funding across four venture rounds from TechstarsCrunchFundAndreessen HorowitzAccess Industries and IA Ventures. It has also raised $180 million in debt financing from Fortress Investment Group and KeyBanc Capital Markets.[4] 
    DigitalOcean Virtual Private Servers
    DigitalOcean Logo


    As of December 2015, DigitalOcean is the second largest hosting company in the world in terms of web-facing computers.[5][6]

  • WordPress is a free and open-source content management system (CMS) based on PHP and MySQL.[5] WordPress is installed on a web server, which either is part of an Internet hosting service or is a network host itself; the first case may be on a service like WordPress.com, for example, and the second case is a computer running the software package WordPress.org.[6] An example of the second case is a local computer configured to act as its own web server hosting WordPress for single-user testing or learning purposes. Features include a plugin architecture and a template system. WordPress was used by more than 26.4% of the top 10 million websites as of April 2016.[7] WordPress is the easiest and most popular blogging system in use on the Web,[8] at more than 60 million websites.[9]It was released on May 27, 2003, by its founders, Matt Mullenweg[1] and Mike Little,[10] as a fork of b2/cafelog. The license under which WordPress software is released is the GPLv2 (or later) from the Free Software Foundation.[11]


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