Archives

Notes on migrating the old Hugo article archive into this Astro blog together with Codex, with bd as the task tracker and guardrail.

Architecture Decision Records (ADRs) are lightweight documents that capture architectural decisions along with their context and consequences. Why should Engineering Teams combine ADRs with the Advice Process.

Composable Architecture, DXP, Headless, API First. Exploration of modern understanding.

An introduction to JDK 21 virtual threads and practicals examples

Description of a typical journey towards the GitOps with Flux

How I switched from Ghost Blog to Hugo and how you can do it too.

How to set up AWS EKS Kubernetes cluster with Terraform, by DevOps expert

Listing of Kube-state-metrics with comments. For kube-state-metrics 1.8.0

Fedora Linux upgrading guide: Step by Step

Setup of Filebeat on a Kubernetes cluster for logs scraping

Setuping Logstash on a Kubernetes cluster - The L in the ELK stack

Elasticsearch Open Distro on AWS vs Elasticsearch from Elastic

Terraforming of the AWS: Getting started set up AWS cloud Resource with terraform

Listing and details to services in Linux Systemd

Docker components explained: DockerD, Containerd, runC, containerd-ctr, containerd-shim

Elasticsearch: Explaining clustering and indices

Review of the Elasticsearch's internal data structures. A tutorial

Elasticsearch cluster configuration: Best practices

Installing Kubernetes on Ubuntu Linux: Set by Step Guide for entry level

Elasticsearch introduction and review

Jenkins installation and configuration with Docker

Upgrading debian Jessie to Stretch: Best practices

What is Docker and what is Docker Moby

How to setup cloud resources in the Google Cloud with terraform

Terraforming of the AWS cloud: Side notes

Review of AWS Cloud automation tools: Terraform, Ansible & Cloudformation

The Serverless Compute Manifesto: The Details

Kubernetes installation with CoreOS Nodes on the AWS Cloud

List of Container Management Systems in 2016

A Review of AWS for Docker containers in 2016.

Introduction to JSON Web Tokens. Suitable for Beginners with java examples

Article exploring the concept of modularity in software system design and shows how it enable your organisation to be more agile

Writing own Ansible role for maven

Golang. How to start guide for beginner

Introduction to Ansible DevOps tool

Cryptographic Message Authentication explained in details. Suitable for Beginners with Java examples

Symmetric Cryptography explained in details. Suitable for Beginners with code examples

Introduction to Cryptographic Hash Functions. Suitable for Beginners. Examples included

Cryptography basics explain. Good Read for beginners

Introduction to Angular 2.0 a Javascript, TypeScript Web Framework

How I switched off Wordpress and migrated my Blog to Ghost Platform

Use my Docker image for Ghost Blog or create your own

Software delivery via Docker containers is much better than with your OS package managers

Set by Step Tutorial: Upgrading Debian Linux wheezy to jessie

Google Cloud SQL: A Review in 2015 and then review of later improvements

How to enter Docker container with "docker exec"

Systemd comes to Debian Linux. The Discussion.

Moving docker images location to different partition

Creating own trusted Docker images and uploading to Docker hub

Tutorial: Docker on the Google Computer Engine (GCP)

Why i switched from Livefyre to DISQUS comments

Introduction to Docker and plea why you should use it right now

Introduction to the data model of Apache Cassandra NoSQL database

Installing and configuring Apache Cassandra

Local Network for local virtual machines: Ready to use bash script

Introduction to Debian aptitude

Introduction to QEMU and Kernel-based Virtual Machine (KVM)

JEE EJB: Why EJB was not goog idea and failed

Installation and Configuration of Sonatype Nexus - artefact repository

Introduction to Maven Basic concepts

Apache Maven Installation step by step tutorial

Result of Upgrading to Livefyre 3.52

Switching commenting system to Livefyre

Introduction to Apache Camel

Understanding of OSGi and OSGi Bundles and Declarative Services

Overview on Oracle jdk console tools

How to repair architecture bug when JPA entities are leaking to Frontend

Linux Samba Service configuration to be used by Windows clients

Building Eclipse Rich Client Application automatically (Tycho)

Linux: Packing with tar gzip, bzip2 and zip...

Setup of JBoss 7 on debian linux. Step by step tutorial

Installing Oracle Java 7 on Debian

What is your favorite Free or Open-Source UML Plug-in? Every year I try some of them and remove them after few hours. As I remember, they were resource-hungry or just bad in reverse engineering Some weeks ago i tried Obj

The chart shows how the Ubuntu boot process is going on my 5 years old Thinkpad T60. Bootchart utility does such charts automatically. If you are interesting in how easy it is to enable such bootcharting read below. Inst

Introduction to and the Configuration of Git

Java EE 5 vs Java EE 6

Configuring Subversion on Debian Linux: Step by Step

As you might already know many interesting Linux resources are modeled as files. File define a simple and well understood interface for linux tools. In this article an would like to highlight a very useful Linux tool uti

I noticed that my last post was a 101 post on this blog which is a good occasion to do some self-evaluation. I started to write here in January 2007 it's nearly 4 years ago. You see I'm not a very productive blogger. Nev

Comparing startup time of Ubuntu vs. Windows XP on my Thinkpad

Java WebServices: an JSR overview

Probably most of modern IT-related people know Atlassian JIRA - issue and project tracking system. Maybe many of you know other popular tracking system like Bugzilla, GNATS, and many many others. Personally, I like JIRA

Queen Elizabeth II head of the Commonwealth and daughter of George VI. She was born on 21 April 1926 and have seen lot of politics and historical acts in her life, because now she is 84! As her father dies in 1952, she b

How to send E-Mails with Exim installed on Linux: Google account example

How to do SSH tunnels

Installing and configuring JBoss 5 GA on Debian linux

Configuring software RAID on Linux: Step by Step

Unpacking under Linux with tar, gzip, bzip2, z and more

In this article I explain how to create a copy of the running Magento online shop system. One of the purposes of having duplicates is e.g. the need of the separation of the developing an test environment. Tests are very

My google page-rank is back today. Some days ago I moved that blog to the new domain (alexander.holbreich.org). I've placed a .htaccess redirect Rewrite Rule to the old domain to preserve some humble SEO result of this p

Folder Monitr allows automatically upload of Pictures to the Flickr. This tool is very useful to me because it can work automatically in the background and therefore reduce one manual step in my picture processing. So ba

How to fix Magento Error - 'SQLSTATE[HY000]: General error'

Hello friends, I'm pleasure to report progress in development of wPopularity plug-in. Yesterday I took some time just for me and wPopularity. After hours of bootstrap debugging (change, ftp upload, look ofr changes) of w

At first, it is a quite bad feeling. All pages of holbreich.de[^1] flow out of google index :(. According to Murphy's Law that happened when I was at some seminar and therefore had not time for my personal page. Google i

What to expect from Magento release 0.9....

My last post is nearly ten days ago - unforgivable ;) Unfortunately, I have had no time or better say I had few time, much small things to do and no motivation. Yesterday I had my birthday and thank goodness, that has ma

SEO Question: DIGG Effect is worth it?

Initially, I just wanted to report about some experience on Crowd news platform - DIGG, but then i noticed that I try to cover at least two different topics in one post, so I decided to split. In that article, I will cov

Yahoo Buzz is launched. This should be probably the Yahoo's answer to Digg. Let's prove this theory. At first look on Yahoo Buzz we see several categories of news and voting buttons aside of them with the ability to voti

New Wordpress plug-in is born. I've created a new branch from the latest version of famous Popularity Contest Plugin. While the Popularity Contest Plugin does not support widgets natively, you need to code your templates

Due SEO considerations it is not recommended (e.g. by Matt Cutts) to spend precious page rank on links like log-in, register forms, rss pages and other meta stuff. One should mark them as nofollow and that is one example

If you keep on blogging you sure want that people read it. In that case early or later you will be interested in SEO basics. Site Meta-information One of the important aspects of is properly made page for the search engi

Please upgrade your Wordpress blog as sun as possible to the released version 2.3.3, because there are security reasons for it. Further check the content of your posts in the code perspective, because maybe it was change

SEO discussion: Category vs Tag

Pligg developers have released version 9.9.0 of Pligg CMS quite months ago. Now a had time to test it. In comparison to my last pligg installation of pligg 9.8.2 this version is more stable. It does not broke pages with

SEO Debate: Subdomains vs. Subdirectories

You can imagine how angry i'm now!!! I just deactivated this peace o shit (excuse me, but there is no other name for that Yahoo Shortcut Plug-In) i the second. Cause that Plug-in deletes my whole article as I clicked on

'Polyglot' is next Wordpress plug-in I want to tell you about. You maybe already has notice this flags at the post caption. As you may think this is translation of this post. Such translations are possible with polyglot

Here is the list of Wordpress plug-ins, that i personally don't wanna miss ony every Wordpress installation. My Top 10 Wordpress Plug-Ins Askimet DoFollow GoogleAnalytics GoogleXMLSitemaps Instant Upgrade Simple Database

How many lifetime people spend to administrate their software. Upgrading, updating, patches, bug-fixes etc. Also in case of Wordpress new versions arrive pretty often, and it's recommended to upgrade, because several sec

Pligg engine stands behind of many "public voting" - social web 2.0 sites. Most prominent of such is digg.com (it's not pligg based i guess). Today I tried out the pligg 9.8.2 beta engine, which is the current released v

Magento: Introduction to new eCommerce shop

It is nearly impossible to compare the advantages and disadvantages of online shop systems because they are complex systems with a variety of functions, that build for different needs. I'm talking about such a system for

Everybody knows the drawbacks of Java Applets. Long loading times, browser freezing, and stability problems. That fact does not make java applet popular[^1]. Most of those problems lie in the quality of the java browser

Today i notice five new comments on my blog that passed spam-filter and waited for approving. They all seemed to be OK. Example is: Yes we all know about that, but you published this on 2005, now it became very famous, m

Don't believe that? Than listen to the story... Occupational i deal with people who works with already aged version WSAD IDE (Rational Application Developer for Web Sphere). I think they use version 5 which is based on e

Architectural advice: Don't let trigger take control

Maybe you notice the downtime of this site last days. Unfortunately it was hacked by someone for unknown purpose. The attacker used some exploit in Wordpress or some plug in or maybe the problem in k2 wordpress theme. So

Now i've changed my homepage ultimately! From now on, my main content is blog content and all other things will be arranged around it. I've made some permanent redirection (301) rewriting rules so Google crawlers and bro

New Elements in the new HTML 5 standard

Master of Business Information Technology

"nofollow" Background The rel="nofollow" html attribute was initially proposed by google and was supported by MSN and Yahoo! The intention was to stem spam-links, that can largely occur in some webpages, especially blog

Every computer science (Informatics) Student, who came across transactions should be heard of Jim Gray. Also know for his book "Transaction Processing. Concepts and Techniques" that his wrote with Andreas Reuter. If i'm

Introduction to Aptana IDE

First Look at Java Persistence API (JPA)

Welcome to the first entry on this personal blog