In one of my previous articles I presented how to: Configure a bridge interface over a VLAN tagged bonded interface on CentOS / RHEL This is a supplement to the above tutorial – sometimes all you need is to configure […]
Linux enables us to create advanced network setups which provide us with special features like NIC Bonding, VLAN tagging or Bridging allowing us to increase network connectivity efficiency and reliability of Linux based hosts. Linux Bond is a kernel module […]
If you have important production servers or critical services in your network, having monitoring tools becomes a must. In case of any hardware or software failures, it is crucial to get alerted as soon as possible and take appropriate actions […]
Postfix is a Mail Transport Agent (MTA), which can be easily configured as a private relay host, passing mail to another mail servers. Unlike Sendmail, Postfix is considered as a very secure MTA, offering a high level of flexibility and […]
Sendmail is an easy to implemant, lightweight electronic Mail Transport Agent (MTA), which enables you to automate the process of sending e-mail messages from your Linux host. It can play a significant role as a background mechanism for processing outbound […]
Using a high-availability LAMP (Linux Apache MySQL/MariaDB PHP) server may totally eliminate the risk of server’s downtime, which can be crucial in case of a production HTTP server, serving critical business application. We can set a redundant, fully functional, high-avalability […]
Nextcloud is a lightweight, open-source StaaS (Storage as a Service) platform, written i PHP and JavaScript, which provides file sync, file sharing and creative collaboration services. The software can be installed on local hardware as a perfect alternative for commercial […]
The basic OpenStack TripleO deployment utilises the so called provisioning / control plane network for all types of traffic (internal API, tenant, storage, storage management, etc…), that run across the whole OpenStack installation. The Undercloud node, which is used for […]
Linux installation can be performed totally unattended using Kickstart file, which contains configuration, required setup and post installation tasks to fully automate installation process without being prompted for any input details. Kickstart file can be placed in the remote repository […]
In TripleO based installations of OpenStack the deployment of Overcloud nodes is coordinated by so called Ironic module, which was developed in general to deploy OS on bare metal servers. There is a number of IPMI (Intelligent Platform Management Interface) […]
