How to Install MariaDB on Centos 7 via Command Line

This is an article written to show how to install MariaDB on CentOS 7. The installation step is done all of it via command line. So, the following are the steps :

1. Search the package of MariaDB whether it is exist already or not. To be able to search, below is the command performed in the bash prompt or in the command line :

yum search mariadb

The above command can be executed in the following situation and it will generated an output which is more or less can be shown below :

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Git push Error Message [remote rejected] master -> master

This is an article which is written to handle or to solve the problem generated when someone is using Git version control utility to push either files or folders to a Git repository server. The main purpose for executing ‘push command’ is for updating remote refs along with the associated objects. But eventually pushing those files or folders triggered an error message as shown in the title of this article. So, git utility is utilized to push files or folders and suddenly an error message generated : ‘[remote rejected] master->master’. Below is the actual process happened :

  1. After adding and committing files, folders exist in the folder associated or initialized for Git version control, the last action is to push it to remote Git repository. Below is the command pattern :

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How to Grant Access to Gitlab Repository

Gitlab repository is a software built for managing git repositories in a centralized server equipped with issue tracking, wiki, etc. Holding the concept of continuous integration and continuous development, the software is quite handy and useful. In this article, there is a specific task which is very important as the first step for managing git repositories using Gitlab. That specific task is a task on how to grant access to Gitlab repository. As we already knew, files or folders are maintained in a certain repository. That specific repository where every each of them have their own rules for user whom can be permitted and for user whom is forbidden to access and perform operations on that repository. So, if a specific repository need to be accessed using a certain user, there is several things need to be done before the actual access to that specific repository can be done. Below is how to grant access to a Git repository for a certain user which is done from Gitlab Git repository management.

1. Access Gitlab Git repository management. Below is the image of Gitlab Git repository management :

How to Grant Access to Gitlab Repository
How to Grant Access to Gitlab Repository

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How to Perform Automatic Deployment with Git

This article will discuss the automatic deployment that can be performed using Git version control. This article itself inspired by the writing which is posted in the article titled ‘How to Set Up Automatic Deployment with Git with a VPS’ in this link.

This article will describe the scenario which is a simple scenario and based on the scenario itself, it an be developed later on to be adjusted with the real implementation of the automatic deployment according to the need and the condition associated.

The image depicting the scenario which is going to be described in this article can be shown as follows :

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Failed to acquire pid file ‘/var/run/libvirtd.pid’: Resource temporarily unavailable

An article in this context is written to discuss about an error triggered at the time virtual machine manager is being executed. An error which is triggered is already stated in the title of this article where it is “Failed to acquire pid file ‘/var/run/libvirtd.pid’ : Resource temporary unavailable”. The error itself is simply stated in the following output generated by the command execution :

libvirtd -v

Below is the output generated from the above command execution :

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How to Remove Storage Pool libvirt

Based on the title of this article, the main subject or topic of this article is mainly about how to remove storage pool in a libvirtd service. Libvirtd is a daemon which is used for handling libvirtd management. What is libvirtd actually ?, well based on the manual page in Linux operating system, libvirtd can be described as a daemon program in the server side responsible for libvirt virtualization management system.

The trigger for removing storage pool in a libvirt virtualization management system is when the libvirtd as the libvirt daemon of virtualization management system is being checked. The command executed is for checking the status of the running process or the running daemon of libvirt virtualization management system. Below is the command executed :

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Failed to connect socket to ‘/var/run/libvirt/libvirt-sock’:no such file or directory

This is an article specifying an error message as its title. The error message is actually triggered when an application called virt-manager is being executed. The application itself, virt-manager is an application based on the manual page of Linux operating system where the application itself is installed specifically to be executed so that it can be properly functioned to display the virtual machine desktop management tool. In other words, in order to manage virtual machine in the desktop, virt-manager is one of the application provided and installed to do and perform theĀ  task.

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