GitHub Uptime and Microsoft

Recently GitHub reliability has been getting worse. It’s 2020 July 13, Monday and GitHub wasn’t working for around 2 hours. Take a look at their status page. You’ll see something...

Hello, World! (v.2.0.0)

Recently I have started working as a Site Reliability Engineer at Vinted. For the first time in my career I am working with production infrastructure and that brings me lot’s...

Upgrading HP Aruba Switch Firmware

Guide for upgrading HP Aruba (formerly ProCurve) switch firmware. Requirements macOS HP Aruba Switch 1. Start built-in tftp server on your Mac tftp server will enable file transfers between macOS...

Ubuntu 16.04 Desktop Unattended Installation

I previously wrote a tutorial on how to automate Ubuntu Desktop 14.04 LTS installation, but for 16.04 it didn’t work because of some differences in installation media. Here’s a full...

Using USB to RS232 Cable with Mac Terminal

I don’t think there is a modern laptop that has serial ports, but many networking devices still use them for local connection. It happens rarely, but I need to use...