Category: IT geek

October 19, 2019

Google Drive and Debian integration on HyperV

I am helping one customer with their VPS and they use primarily Google Drive for data management. So the idea poped up in my head… What if I could grab some files from the VPS server and push them straight into their G-Drive? This could provide an opportunity for backing up required data from VPS but also push certain data back into VPS without a […]

October 14, 2019

Newsletter systems in Czech for SMB

When it comes to newsletters, the first word I hear is MailChimp. It is quite powerfull application that helps you to manage e-mail marketing effectively. There are other alternatives like Aweber, Constant Contact, Drip, GetResponse, Benchmark, SendinBlue, iContact and many more. None of them, however, are customised specifically for the Czech market. Unless your team speaks and operates in English, you might have to look […]

October 10, 2019

Choosing a domain name xyz.CZ vs xyz.COM

There is already plenty of resources online, providing a guide on how to choose a domain name. In this post, I will just leave few links for a quick reference and tips and tricks from my personal experience.  Firstly, it is quite important to note, that selecting a domain whose customers are non-english speakers is quite different than for example dealing with Aussies as the […]

October 9, 2019

vCard (.vcf) projects

First, what is vCard or VCF? Well, it is a file format standard for electronic business cards. The latest standard is vCard 4.0 defined in RFC 6350. “VCF’ (virtual contact file) is extension used to identified this file format.  You can create one in Outlook app, online website, in your text editor or export it from your ERP solution (if they follow standards). You can […]

October 6, 2019

G-mail vs G-suite

This is a quick recap why I chose to use G-Suite instead of free G-Mail account or other e-mail services. First, I had to ask myself if I want to have professional e-mail address or not. Sure, I can setup G-Mail, Yahoo, Seznam e-mail in no time, but how does it look when the e-mail comes from free services that provide zero guarantee? Yes, you […]

October 6, 2019

E-commerce in Czech

A brief extract from Business Leaders magazine (03/2019) about e-commerce in Czech Republic and other online resources I came across while doing the research.  e-shop/person ratio is the highest out of EU (around 42,167 e-commerce solutions currently running in Czech, yearly +3.5%) estimated turnover for 2019 – 165miliard CZK (currently 122,215,343,123 Kč) expected growth in small-business market = 13% e-commerce brings around 10.2% of total […]

September 23, 2018

Internet of Money by Andreas Antonopoulos

I finished listening to an audio version of the book called “The Internet of Money” by Andreas Antonopoulos. This book is structured into very short, numbered talks which are quite handy when you need to navigate elsewhere and also if you need a refresher. Each chapter starts with a title that makes it really easy to remind yourself whether you’ve listened to it or not. […]

May 30, 2018

CRYPTO: Ledger Nano S

If you have some crypto coins, secure them in hardware wallet! I can recommend Ledger Nano S as shown below. I used it for about 3 months, pretty straightforward to use, portable and reasonably priced. If you have any questions, leave me a message.  

May 30, 2018

CRYPTO: Crowdfunding Project

Acorn Collective Crowdfunding is a great tool, yet platforms that dominate the market at moment are taking a big bite for securing those transactions. Here is just an example chart of how much you end up paying

April 30, 2018

Wave Apps – online invoicing switch

As of 1st May 2018, I will be utilising WaveApps.com and moving away from FreshBooks for invoicing and accounting purposes. They both provide similar features and Credit Cards integration with Stripe payment platform, but WaveApps takes it to the next level with zero monthly cost. This package is, however, designed for small businesses and there can be issues with GST calculations on invoices as this […]

February 12, 2018

SECURITY: TPG modem admin bypass to enable DSL

Problem: you have Huawei HG659 that came from TPG pre-configured, but it doesn’t work on ADSL. You set up bridge mode to 3rd party ADSL modem and still no success. Reason being – it’s preconfigured for VDSL and you cannot change it without root admin access. On top, TPG won’t give you the password for root. Solution: Forget about root admin

February 9, 2018

CRYPTO: Bitcoin is not always Bitcoin!

Bitcoin is not always Bitcoin! Warning! Before you invest in Bitcoin, please do a proper research and/or ask people you trust for advice in this field. There is a very nasty marketing approach circling Bitcoin and has been for a while, as everyone wants to cut their piece and profit. Don’t let them profit on you. You might come across websites, social network profiles or […]

February 7, 2018

WEB: webserver sizing and testing

Here are few links I recommend to start with for a web server design, load testing and performance. Web server sizing – network, processor, memory, HDD http://www.dell.com/content/topics/global.aspx/power/en/ps3q01_graham?c=us&l=en&cs=04 Load testing – load impact – nice tool to put a web under (test)load 🙂 https://loadimpact.com http://support.loadimpact.com/knowledgebase/articles/174121-how-do-i-interpret-test-results

February 7, 2018

CRYPTO: handy BTC tools for TXs and fees

Below is a list of tools you might need for checking a transaction fee or its details. Handy for cutting some TXs cost and troubleshooting crypto transactions (mostly BTC). Unconfirmed transaction and fees estimator; shows price per byte and eta for confirmation https://bitcoinfees.earn.com Unconfirmed transactions in mem-pool, variation of #1 https://dedi.jochen-hoenicke.de/queue/ Bitcoin Fee calculator, calculate size and fee estimation https://coinb.in/#fees Accelerators – for stuck transactions ConfirmTX – […]

January 23, 2018

CRYPTO: GDAX – CoinBase security flaw

Let’s assume you enabled 2FA on your GDAX/Coinbase account. Currently, you cannot withdraw funds from GDAX to outside address or bank account without two-factor authentication (2FA). However, you can move the funds from GDAX to Coinbase account and from there you can then send them to outside address without 2FA! I consider this a security flaw and will demonstrate the issue in the example below. […]

January 2, 2018

How to make public facebook posts private (the quicker way)

I randomly came across a problem related to Facebook privacy and public posts. If you have ever posted something on Facebook, you might also know that there are some privacy options available for each post. While you might have your default visibility set up to “friends” only, there still might be some older posts on your timeline with privacy set to “public“. That essentially means […]

September 15, 2016

Short forecast of computing era in relation to AI

AI = artificial intelligence, has been on rapid growth during the millennium age and we are shifting into cognitive era of computing, where computer software can listen, learn and analyse unstructured data. Cognitive thinking is natural to humans but it’s been a great challenge for digital world. These limitations however, are falling apart and the future we envision and sometimes dream about, might be closer than we […]

May 5, 2015

iPhone wifi issue solved by hair dryer

Ok. So this has happened to me already 4 times and technique below is not guaranteed at any circumstances. However, it worked for me all the time. So what is the issue? iPhone 4s simply stop providing me wifi feature since I updated the iOS to newer version. It has happened with any major iOS update 7.x, 8.x. Wifi was working perfectly fine, then I […]

February 4, 2015

Password security

I am currently working on revision of my password management. Recently, I’ve been a victim of a scam e-mail from pretending to be from Gumtree and my password was exposed. Rookie mistake in a rush. I immediately took actions, however I realised, I don’t have a clear idea, where else have I used that password and hence those services is under potential threat.