I write this diary reluctantly. Its dishonest honesty wearies me. For whom am I writing? If I am writing for myself, then why is it being published? If for the reader, why do I pretend that I am talking to myself? Are you talking to yourself so that others will hear you?

Diary by Witold Gombrowicz

Recent notes

How to inspect OpenSSH configuration

Inspect OpenSSH configuration. ...

March 22, 2023 · milosz · OpenSSH

How to add or remove user from a group

Add or remove user from a group using multiple different utilities. ...

March 20, 2023 · milosz

How to identify hardware network interfaces

Identify hardware network interfaces. ...

March 17, 2023 · milosz · JSON

How to bind to a non-local IP address

Ensure that HAProxy can assign a non-local IP address. ...

How to detect new group and update environment during live session

Detect new group and update environment during live session. ...

March 13, 2023 · milosz

Popular notes

How to take advantage of Docker to install Mastodon

Take advantage of Docker to install Mastodon. ...

How to reset offset of Kafka consumer group

Reset offset of Kafka consumer group. ...

November 15, 2021 · milosz · Kafka

How to encrypt or decrypt files using OpenSSL utility

Use OpenSSL utility to encrypt or decrypt files. ...

May 12, 2021 · milosz · OpenSSL

How to prevent systemd service start operation from timing out

Specify systemd startup timeout option to prevent service start operation from timing out. ...

How to non interactively provide password for the PostgreSQL interactive terminal

There are two ways to non interactively provide a password for the psql command (PostgreSQL interactive terminal). Each method allows you to quickly write shell scripts using terminal-based PostgreSQL utilities as you can provide user credentials from the password file or environment variables. ...


My name is Milosz Galazka. I am senior DevOps engineer and FOSS enthusiast with Linux at heart.

This is my personal space used to share my passion and experience. Nothing less and nothing more. I do not expect any income from it, so it does not contain any advertisements or tracking. I am not interested in guest posts or paid links.


Use email address to contact me directly.