In a week when several accidents happened one after another on Czech railways I decided to try carsharing. Since I often use RegioJet, I went with CAR4WAY. With a voucher from the carrier you don't pay the sign-up fee (1,000 CZK). Fill in the required details and once confirmed you c...
Elastic offers a lot of training, some of it free. A while back I completed Fundamentals of Securing Elasticsearch, a useful course on securing communication between Elasticsearch hosts. I was curious how far Kibana had come and wha...
When someone visits and wants to get online, what do you do? Give them your password? No, you shouldn't. Why?
You might be using the same password elsewhere, you risk a MitM (Man-in-the-middle) attack, you don't know who else the password will be shared...
On Monday I successfully completed the physical tests and became an army reservist. Exactly three months after finishing the basic course in Vyškov. Why the delay? I injured my shoulder — fortunately it wasn't serious. A month without loading it, painkillers, and physio...
Due to an order from the Chief Medical Officer of the Ministry of Defence, I had to take a PCR test for COVID-19 before starting my military exercise. All my important personal details are stored in ISIN (Infectious Disease Information System) — I just had to register by phone.
T...
After moving in, we wanted to get settled, which meant drilling a few holes for wall plugs. Drilling in an unfamiliar flat is always a lottery — you never know what's under the plaster. I have a Bosch impact cordless drill that comes supplied with what look like masonry bits. Or...
Online learning is nothing new for me — I take courses from time to time. But during the crisis there was no alternative to online teaching, whether for school or continuing education. I got to experience it from both sides — as an inst...
Like all applications (Webex, Skype, etc.) Zoom also has bugs, which it's now scrambling to fix as fast as possible — see the plan published on their blog.
This issue has already been resolved and only affected...
Over the course of a month I had the chance to take part in four different NetWars (DFIR, ICS, Cyber Defense, and Core). Each one focuses primarily on something different, but they all have one thing in common — they develop knowledge and practical skills. Under pressure (...
Given that online learning was coming up, I finally tackled something I'd been putting off — a factory reset of my Turris router. Why? Well, after one update I couldn't manage the router through the UI. I kept seeing Bad gateway. After reboots, endless updates and tweaking a...