How to upgrade Alpine Linux 3.4/3.5/3.6 to 3.7.xx

How to upgrade Alpine Linux 3.4/3.5/3.6 to 3.7.xx
Alpine Linux version 3.7 has been released. Here is how to upgrade it.
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How to install keychain manager for ssh-agent on CentOS 6/7

How to install keychain manager for ssh-agent on CentOS 6/7

OpenSSH offers RSA and DSA authentication to remote systems without supplying a password. keychain is a special bash script designed to make key-based authentication incredibly convenient and flexible. It offers various security benefits over passphrase-free keys. How do I install keychain on a CentOS Linux 6.x or 7.x?
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How to Install Grafana on Linux Servers

Zabihah Halal Vitamins
How to Install Grafana on Linux Servers
In this tutorial, we will show you how to install and configure Grafana on Linux servers (Ubuntu 16.04 and CentOS 7). Grafana is an open source data visualization and monitoring suite. It offers support for Graphite, Elasticsearch, Included, Prometheus, and many more databases.

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How to Install Apache CouchDB on CentOS 7

Zabihah Halal Vitamins
How to Install Apache CouchDB on CentOS 7
In this tutorial, we will discuss step-by-step installation and configuration of Apache CouchDB on a CentOS 7 server. Apache CouchDB is an open source NoSQL database software that’s focused on scalable architecture. CouchDB was released in 2005, and become an Apache Software Foundation project in 2008.

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Book review: Mastering Vim Quickly From WTF to OMG in no time

Book review: Mastering Vim Quickly From WTF to OMG in no time

The vim editor is a free and open source text editor. It is a clone of vi text editor. Vim is extremely popular among the Linux, macOS and Unix-like system users. Vim has many commands. It comes with a pretty extensive built-in manual too. One might get lost in the built-in manual. Let us see if “Mastering Vim Quickly From WTF to OMG in no time” can help a new or experienced vim user to increase productivity.
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Add a new Host and Services to be Monitored by Icinga 2

Zabihah Halal Vitamins
Add a new Host and Services to be Monitored by Icinga 2
In this tutorial, I will show you how to add a new host to be monitored by Icinga 2 and how the host’s services, such as a web HTTP server, can be monitored by Icinga. I will also show you how to create your own custom Icinga plugin command in order to monitor UDP services in your network infrastructure.

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