In this article, you will learn:

• How WEDOS server hosting works:
  • Virtual servers
  • Dedicated servers
  • Cloud
• How to manage servers:
  • Connecting to the server
  • Installing an OS
  • Troubleshooting
• Glossary

Server hosting services offer experienced users the performance and space to implement virtually any project. The following is true for all server services:

• The system creates a service within 1 hour of receiving payment.
• The installation and operation of the server software (including the operating system) is fully under the responsibility of the customer.

Depending on the needs of your project, you can choose between services:

• Virtual Server: A virtualized server on a shared physical server. The most affordable server hosting option.
• Dedicated server: A server with dedicated hardware and fixed configuration.
• Cloud: A service on the OpenNebula cloud platform.

A virtual private server (VPS) operates on virtualized physical server hardware shared with other customers. Virtualization software ensures the distribution of system resources so that the VPS works as a separate physical server with the specified performance.

You can upgrade, but not downgrade, VPS performance in the customer administration panel. Performance limits are determined by the selected VPS variant.

WEDOS offers two VPS variants:

• VPS SSD is a variant using older virtualization technology. You upgrade performance and disk space by adding modules of fixed size. You manage the server via KVM software using the VNC protocol (encrypted via SSL). More information can be found on the VPS SSD product page.
• VPS ON uses OpenNebula virtualization technology. You upgrade performance and disk space independently according to system needs. You manage the server in a browser via the OpenNebula Sunstone interface. More information can be found on the VPS ON product page.

You can find an overview of VPS performances in the table:

We back up VPS ON once a week in case of a disk crash. In necessary cases, we can also renew the backup for a fee at the customer’s request. For VPS SSD, backups are an add-on service. For more information, see the Backups article.

A dedicated server is a physical computer that you rent entirely for yourself. The server has a fixed hardware configuration depending by the choice of server, you manage it via the iLO/iRMC and KVM interfaces. You can find more information on the dedicated servers product page.

We do not back up dedicated servers.

Using the Cloud service, you can create any number of virtual servers and connect them to other cloud solutions. You configure the system resources of the Cloud according to your current needs, within the same restrictions as for the VPS ON service. You manage the service through the OpenNebula Sunstone interface. More information can be found on the WEDOS Cloud product page.

We back up the cloud once a week in case of a disk crash. In necessary cases, we can also renew the backup at the customer’s request for a fee. For more information, see the Backups article.

To operate and manage a virtual server, you need to have at least basic knowledge of the used operating system. We offer selected ready-made installations of Linux operating systems for VPS and Cloud servers. However, we do not offer any warranty or support for the pre-installed software. We do not install, configure or modify software.

Management of the software on the server is entirely under the control of the customer. If you do not have experience with server management, consider using a Webhosting or WMS service.

Basic server operation is enabled by the KVM interface, i.e. keyboard, monitor and mouse. For different services, this interface is available in different ways:

• VPS SSD connects via a VNC client. You can find more information in the article VPS SSD – Server Access via VNC.
• VPS ON and Cloud have a built-in KVM console in the OpenNebula SunStone interface.
• Dedicated servers either use their own KVM clients (see iLO, iRMC manuals), or you can use VNC clients as in the case of VPS SSD.

The OS installation differs depending on the chosen server hosting option:

• VPS SSD: You can select the operating system already within the order. If you need to reinstall, follow the instructions VPS SSD – OS Image Installation.
• VPS ON: You can select the operating system already within the order. If you need to reinstall, follow the instructions VPS ON – OS Image Installation, VPS ON – Custom OS installation, or VPS ON – Instalall Windows with VirtIO.
• Dedikovaný server: We only create dedicated servers without an OS. Follow the instructions Dedicated servers – iRMC Manual for Fujitsu servers, or the instructions Dedicated servers – iLO Manual for HP servers.
• Cloud: OS installation on the Cloud is the same as with VPS ON, but it is not possible to select the operating system as part of the order.

You can find solutions to common server problems in the VPS – Troubleshooting article.

• Cloud: Technology enabling creation of virtual servers as needed.
• Distribution: In the context of server hosting, most often a variant of the Linux OS, for example Debian or Ubuntu.
• IP address: The numerical address of the server on the network. Content of type A and AAAA DNS records.
• KVM: Keyboard-Video-Mouse. An interface for managing a virtual server with a keyboard, display and mouse.
• Linux: Open source operating system. We install selected distributions on VPS SSD, VPS ON and Cloud servers automatically.
• OpenNebula (ON): An environment enabling the running and management of VPS ON and Cloud virtual servers.
• Operating system (OS): Basic software for running servers, usually one of the Linux or Windows distributions.
• Ping: A server response diagnostic tool.
• Processor: The part of a computer that performs logical operations. Overload can cause applications to slow down or stop.
• RAM: Random Access Memory. Quickly available computer memory for currently running tasks.
• Reverse record: A special record connecting the IP address of the server and the domain. More information: Serverhosting – Reverse Records.
• Server: A powerful computer designed to run web applications, databases, email and other services.
• SSD: Solid State Drive. Disk storage technology, newer and usually faster than HDD.
• SSH: Secure SHell. A protocol for connecting to a working server with access enabled. If it doesn’t work, use KVM.
• SunStone: OpenNebula system management interface.
• Virtual Private Server (VPS): Virtual server on shared hardware.
• Virtual processor: One virtual processor corresponds to a single-threaded process on a physical server. VPS servers can share these physical threads.
• VNC: Virtual Network Computing. KVM client remote connection protocol used by VPS SSDs and dedicated servers. More information: VPS SSD – Server Access via VNC.
• Windows: Operating system. We do not obtain a licenses or install this OS.