What is User Beancounters? UBC Parameters?

Posted at February 27, 2017 at 6:49 pm by Jithin

The User Beancounters are inevitable parameters of containers. They are as important because they will affect the server performance if the limit is reached. In this article, we are going to see about the User Beancounters in detail.   What are User Beancounters? These limits are controlled by each of the containers in the node. The container should not hit these limits. When the limits are hit, it may cause various issues to the server. The User Beancounters are also known as the UBC    [...]

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A Beginners Guide to OpenVZ

Posted at November 11, 2016 at 12:50 pm by Jithin

OpenVZ is an OS level virtualization technology for Linux. It allows a physical server to run multiple operating systems on it. We can call these platforms containers or VPS. OpenVZ is a container which holds an operating system. We can install multiple operating systems on their containers. OpenVZ containers have no kernel, so it uses VZkernel as common and OpenVZ containers cannot be operated using Linux kernel.   Basic terms of an OPENVZ Templates OS templates are modified Li   [...]

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About Server Virtualization

Posted at October 28, 2016 at 4:28 pm by Jithin

What is virtualization? As the name indicates, virtualization means creating virtual version of something and not real ones. Virtualization can be done on hardware, operating systems, storage devices and computer network resources.   What is Server Virtualization? Server Virtualization can be defined as the masking of server resources. These resources will include number and identity of physical servers, processors, and operating systems from the server users. This server virtua   [...]

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What is TUN/TAP? How to enable it in OpenVZ?

Posted at October 28, 2016 at 4:24 pm by Jithin

TUN/TAP is used to provide packet reception and transmission for user space programs. TUN stands for network TUNnel) is a network layer device and TAP stands for network TAP and it is a link layer device and both of them are virtual network kernel devices. TUN/TAP kernel module is needed to be enabled in VPS for VPN configuration because TUN is used with routing and TAP is used for creating a network bridge. TUN/TAP can be viewed as a simple Point-to-Point or Ethernet device. It sent and receive   [...]

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About KVM ( Kernel-based Virtual Machine )

Posted at September 8, 2016 at 6:30 pm by Jithin

Overview KVM (Portion based Virtual Machine) is the main open source complete virtualization arrangement on x86 equipment and it underpins all major working frameworks including Linux and Windows. KVM empowers associations to be light-footed by giving strong adaptability and versatility that fit their particular business requests. KVM changes over the Linux bit into an exposed metal hypervisor and it influences the propelled elements of Intel VT-X and AMD-V x86 equipment, in this manner conve   [...]

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