Let's Encrypt
How to Setup XTRF with Apache HTTP server as a reverse proxy and SSL from Let's Encrypt
XTRF is a Polish translation management system available to install as SAAS or on your own server (both Windows and Linux). In today's article, I will keep notes on How to Setup XTRF…
How To HTTPS Secure Drupal 8 Running Nginx with Let's Encrypt on Ubuntu 18.04
Let's Encrypt have done some very good job, providing SSL certificates that everyone can use absolutely for free. Encrypted HTTPS websites should be default in 2020. I have been…
Let's Encrypt Fix for "produced an unexpected error: Problem binding to port 443: Could not bind to IPv4 or IPv6.. Skipping."
The other day I faced this problem - server was not automatically renewing Let's Encrypt certificate: produced an unexpected error: Problem binding to port 443: Could not bind to…
How to Renew Let's Encrypt SSL Certificate
Free SSL certificates from Let's Encrypt certify are issued for a short 3 month term. I first enabled secure HTTPS pages around at start of 2016, and now it's time to renew SSL. The following…
Let's Encrypt to fix HTTPS Certificate incompatibility with Windows XP and Google Chrome
It was about a month ago - when I successfully installed secure https pages for my blog, I opted for using free certificate provided by Let's Encrypt certificate authority. I first heard Let's…
Linode: How To Secure Nginx with Let's Encrypt on Ubuntu 12.04
Encrypted HTTPS websites are pretty much a hot topic nowadays. I have seen a lot noncommercial websites and blogs using HTTPS protocol lately. I believe cheap prices for certificates…
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I share ongoing portfolio progress with a focus on generating income through covered calls on quality stocks. Each update includes positioning changes, trade rationale, and forward-looking adjustments based on current market conditions.
Latest articles
Mumbai & Goa / India Trip
It has already become something of a tradition for us - escaping the cold during our daughter’s winter school break and trading grey skies for warmth, color, and a slower rhythm of life. Each year, we carve out about three weeks to leave Tbilisi behind and head somewhere sunnier. And more often than not, that “somewhere” turns out to be India.Our…
Backtesting Ethereum: How Often Does ETH Drop 5% in a Day?
While working with the TerraM trading bot, I conducted a backtest to quantify the frequency of significant daily drawdowns over the past 365 days (May 4, 2025 – May 3, 2026). Specifically, I analyzed how often the daily price change exceeded -5% or more. The results are notable.The dataset is based on historical price data sourced from…