VMware is a ubiquitous name in the virtualization world. It includes ESXi, VMware Workstation, Tanzu and many other products. These products are the first thing that comes up when people talk about virtual machines and other items dependent on them. ...

 The OpenWrt Project is a Linux operating system that targets embedded devices. Instead of static firmware images, OpenWrt provides a filesystem with a package manager, similar to regular Linux systems. OpenWrt now supports numerous architecture...

Sophos Firewall Operating System (SFOS) is a purpose-built OS that is the core of Sophos XG firewall. The architecture has multiple options for mitigating the latest threats and modern-day features like SD-WAN, cloud application traffic, etc. Sophos ...

VyOS is an open-source network operating system based on Debian Linux, that came from the development version of Vyatta routing software. While there is both an open-source and paid version of VyOS, here we will focus on the open-source, nightly buil...

In our previous PostgreSQL upgrade blog post, we have shown how to upgrade on Windows machines, and this post is valid for the newer PostgreSQL versions as well. However, this time we are focusing on Debian, as there is a little bit of difference. Po...

Proxmox Virtual Environment is a hypervisor on which you can host Virtual Machines and containers. It is a complex environment with open-source clustering and advanced backup and network capabilities. Therefore, it is really important to have a prope...

Nutanix is a cloud OS for Hyperconverged Infrastructure (HCI). It allows you to control from one place your entire IT infrastructure, with a simple interface and/or on smartphones. Nutanix is usually used as a private cloud infrastructure, where the ...

Virtualization is ubiquitous in the IT world. However, with the ever-increasing complexity, we are faced with the fact that our old tools are insufficient nowadays. That is why we need to accustom ourselves to diverse types of NetFlow configuration. ...

Since Ubuntu 16.04 is approaching its end-of-life (you can, of course, extend it with ESM though that's another story), there is a need to keep your system up-to-date. Unlike CentOS and Red Hat, which don't support in-place upgrades, Ubuntu (and Debi...

Usually, our customers configure NetFlow export directly on their devices (routers, switches, firewalls, etc). But in case the company policy (especially in Asian countries) prevents enabling export on devices, or if devices are not capable of export...