centos 7

In our previous article, we set up OpenLDAP server on CentOS 7 / RHEL 7 for centralized authentication. In continuation to that, we will now configure OpenLDAP with SSL for secure communication. In this setup, LDAP clients communications…

In our last article, we set up Cacti for monitoring servers and network devices to draw the graph metrics such as CPU load and network bandwidth utilization. This guide focus on how to monitor remote Linux servers with Cacti monitoring…

FreeIPA is an opensource identity management system for Linux/Unix environments which provides centralized account management and authentication, like Microsoft Active Directory or LDAP. FreeIPA is a combination of 389 Directory Server,…

Let's Encrypt is a widely know certificate authority that provides free X.509 SSL certificates for TLS encryption, launched in April 2016. It is an automated process to eliminate the current complex process of certificate creation,…

This article is the third part of our OpenStack series. In this tutorial, we will go through steps to launch an OpenStack instance from Horizon Dashboard. Prerequisites 1: Install Single Node OpenStack in CentOS 7 / RHEL 7 2: Configure…

In our last article, we set up Observium for monitoring servers and network devices. This guide focus on adding Linux machines to the Observium tool for monitoring. Prerequisites Setup Observium monitoring tool for your environment.…

Observium is an open source, low-maintenance, auto-discovering network monitoring tool for operating systems and network hardware. It supports Linux and Windows operating systems and network hardware like Cisco, Juniper, Brocade, Foundry,…

This tutorial is the second part of our OpenStack series. In this tutorial, we will go through steps to configure OpenStack Networking to allow access to VM instances from external networks. Prerequisites Follow the below link to install…

When I was drafting an article about the installation of MongoDB on CentOS, I had to run semanage command to make a change in SELinux policy to allow us access to MongoDB on port 27017. semanage port -a -t mongod_port_t -p tcp 27017…

OpenStack is a set of free and open-source tools for building and managing cloud computing platforms for public and private clouds. OpenStack is mostly deployed as IaaS (infrastructure-as-a-service), where you can make resources like…