https://mkt-sidenotes.dev/categories/blog-tech/ Recent content in Blog (Tech) on mkt's sidenotes Hugo -- gohugo.io en md.irohas@gmail.com (mkt) md.irohas@gmail.com (mkt) © 2026 mkt Tue, 22 Sep 2026 07:19:06 +0000 https://mkt-sidenotes.dev/tech/2026-09-20-do-not-use-sudo-su-ubuntu-26/ Tue, 22 Sep 2026 00:00:00 +0000 md.irohas@gmail.com (mkt) https://mkt-sidenotes.dev/tech/2026-09-20-do-not-use-sudo-su-ubuntu-26/ Use sudo -i instead of sudo su. In Ubuntu 26.04, the traditional sudo implementation has been replaced by sudo-rs, and signal handling seems to have changed slightly. As a result, if your SSH connection drops while you are running sudo su, the sudo su processes can stay alive indefinitely… https://mkt-sidenotes.dev/tech/2025-11-28-visualizing-year-month-day-progress-in-grafana/ Sun, 30 Nov 2025 00:00:00 +0000 md.irohas@gmail.com (mkt) https://mkt-sidenotes.dev/tech/2025-11-28-visualizing-year-month-day-progress-in-grafana/ I’ve put together a set of PromQL queries for visualizing how much of this year, this month, and today has passed using Grafana and Prometheus. The Enlgish version will be published soon. https://mkt-sidenotes.dev/tech/2025-10-10-understanding-timestamp-difference-between-shutdown-and-systemctl-poweroff/ Sat, 11 Oct 2025 00:00:00 +0000 md.irohas@gmail.com (mkt) https://mkt-sidenotes.dev/tech/2025-10-10-understanding-timestamp-difference-between-shutdown-and-systemctl-poweroff/ I ran into trouble because I didn’t properly understand the difference in time formats between the Linux shutdown command and the systemctl poweroff. As a reminder to myself, here’s a concise summary of each time format and how they differ.