KVM for Kernel-based Virtual Machine is an open source software is a fully virtualization support for Linux on x86 hardware. Cloudmin's installer can be used on CentOS, Fedora, Debian and Ubuntu operating systems.

Have updated some configuration in Oracle server, Once its done just tried to restart Oracle Server. Shows an error when start SQL server using startup command,

Normally we can connect remote server using SSH for managing or execute programs on Linux.

This post describe about how to change Hostname in your CentOS 7 or RHEL 7 using commands. Before that we need to understanding Hostname, its divided into three classes are static, pretty, and transient.

By default Linux operating system use more RAM memory for disk cache, because of reading data from cache if more faster than reading data from hard drive, we can clear cached on your system and this is a non-destruction operation,

If you are using VPS server or need remote access to a machine we will probably use SSH connection. Use modern cryptography methods for privacy and protect from an unsecured, unsafe network. The basic SSH secure to do few updates.

NTP is a protocol developed for synchronize your system date and time over a network, If you could not found that package install in it.