Archives

2026

19 Aug Leadership Academy — Pre-Reading: Agile Leadership, Delivery Ownership, and Decision-Making
07 Aug Leadership Academy — Session 5: Applying COIN in the Real World, and Coaching vs. Mentoring vs. Managing
07 Aug Flexbox Drills: 32 Tiny Reps to Make It Stick
06 Aug Leadership Academy: The Series
31 Jul Leadership Academy — Session 4: Communication Modes and Difficult Conversations
27 Jul Module 10: REST API Fundamentals
27 Jul Module 5: Node.js
26 Jul Module 8: Unit Testing Fundamentals
26 Jul Module 11: Password Salt + Hash Fundamentals
26 Jul Module 9: Feature Toggle Fundamentals
26 Jul Module 7: JWT Authentication
26 Jul Module 6: Express
25 Jul Docker Part-1 — 1 Hour Session Plan
24 Jul Leadership Academy — Session 3: Psychological Safety, Stakeholders, and Managing Expectations
20 Jul Module 3: Git
20 Jul Git Training Program for Graduates
17 Jul 07 - Advanced Workflows and Team Collaboration
17 Jul Linux Week2 Exam Questions
17 Jul Leadership Academy — Session 2: Personal Commitments, Team Operating Rhythm, and SBI Feedback
16 Jul Module 2: Linux Commands
16 Jul Mac Users: SSH & SCP Hands-On Guide (Week 2)
16 Jul Basic Linux Training - 2 Week Intensive
16 Jul Basic Linux Training - Course Index
16 Jul Week 2: System Administration & Remote Access
16 Jul Git Part 2 — Practical Exam (Week 2)
16 Jul Git Part 1 — Practical Exam (Week 1)
16 Jul Subnetting Finally Clicked
16 Jul Query Cost and EXPLAIN
16 Jul Module 1: MySQL
16 Jul MySQL 8+ Training Course Index
15 Jul Recursive CTEs — Traversing Hierarchies
15 Jul Correlated Subqueries — Row-by-Row Subqueries
15 Jul Nested Subqueries — Queries Within Queries
15 Jul RANK() and DENSE_RANK() — Handling Ties in Rankings
15 Jul COALESCE — First Non-NULL Value
15 Jul RIGHT JOIN
15 Jul Week 1: Linux Fundamentals
15 Jul Weeks 3–4: IDE Workflows and Professional Collaboration
15 Jul Weeks 1–2: Git Fundamentals and Branching
15 Jul 10 - Trainer Guide
15 Jul 09 - Student Worksheet (Fill-in + Exercises)
15 Jul 08 - Cheat Sheet and Practice Lab
15 Jul 06 - Branching and Merging
15 Jul 05 - Remote Collaboration
15 Jul 04 - Fixing Mistakes
15 Jul 03 - vi Quick Guide for Beginners
15 Jul 02 - Local Workflow
15 Jul 01 - Setup and Basics
15 Jul Naive Bayes — Problem Set with Answers
14 Jul Module 4: HTML + CSS + JavaScript
14 Jul Naive Bayes, From the Ground Up
10 Jul Leadership Academy — Session 1: Management vs. Leadership, and the Trust Equation
09 Jul Track 3: ReactJS
09 Jul Track 5: React Native
09 Jul Track 7: Python / Machine Learning
09 Jul Track 2: Java
09 Jul Track 6: Flutter
09 Jul Track 1: C#
09 Jul Track 4: AngularJS
23 May My Progress Tracker
23 May Transactions — Ensuring Data Integrity
23 May ROW_NUMBER() — Numbering Rows with Window Functions
23 May Views — Reusable Query Logic
23 May Date and Time Functions — Working with Temporal Data
23 May Multiple Joins — Combining 3+ Tables
23 May Self Joins — Comparing Rows Within the Same Table
23 May CASE WHEN — Conditional Logic in SQL
23 May SUBSTRING — Extract Parts of Text
23 May String Functions (UPPER, LOWER)
23 May NULL Handling
23 May DISTINCT
23 May LEFT JOIN
23 May INNER JOIN
23 May Primary Key and Foreign Key Concepts
23 May HAVING vs WHERE
23 May GROUP BY
23 May Aggregate Functions
23 May LIMIT
23 May ORDER BY
23 May Filtering Data
23 May SELECT with FROM and WHERE
23 May DROP TABLE
23 May ALTER TABLE
23 May DELETE
23 May UPDATE
23 May INSERT
23 May CREATE TABLE — Building Your Database Structure
23 May Mini Challenge 11 — Capstone: Complete Business Intelligence Dashboard
23 May Mini Challenge 10 — Recursive CTEs, Dates, Views
23 May Mini Challenge 9 — COALESCE, Subqueries
23 May Mini Challenge 8 — SUBSTRING, CASE, Self Joins, Multiple Joins
23 May Mini Challenge 7 — NULL Handling, String Functions, and SUBSTRING
23 May Mini Challenge 6 — LEFT JOIN, RIGHT JOIN, and DISTINCT
23 May Mini Challenge 5 — HAVING, Keys, and INNER JOIN
23 May Mini Challenge 4 — LIMIT, Aggregate Functions, GROUP BY
23 May Mini Challenge 3 — SELECT, Filtering, and ORDER BY
23 May MySQL 8+ Training Course
23 May Mini Challenge 2 — ALTER TABLE, DROP TABLE
23 May Mini Challenge 1 — CREATE TABLE, INSERT, UPDATE, DELETE
23 May Database Setup: company_db
17 May Linux Quick Reference - Essential Commands
18 Mar Building and Documenting a REST API with Jersey and Swagger
20 Jan Oracle SQL Patterns for Financial Data

2025

2024

22 Oct Kubernetes Deployments — Getting Your Java App Running
14 Aug GitLab CI/CD Pipeline for Java Applications
02 Jun Docker Multi-Stage Builds for Java Applications
18 Apr Jenkins Declarative Pipeline — Coming From an Ant/Maven Background
05 Mar Configuring NGINX as a Reverse Proxy
10 Feb JWT Tokens Explained

2021

05 Oct How to create deadlock using static final variables
01 Aug Understanding Statistics - Research Methods Part-4
25 Jul Docker Part-1 — Hands-On Guide
12 Jul Understanding Statistics - Research Methods Part-3
11 Jul Understanding Statistics - Research Methods Part-2
09 Jul Understanding Statistics - Research Methods Part-1
30 Jan Java kerberos SQLServer login
20 Jan Java retrieve kerberos ticket

2020

02 Dec Linux Comodo antivirus libssl error fix
18 Nov Linux connect to wifi using nmtui
10 Oct Linux nemo add right click action
10 Sep Linux nemo adding icons to desktop using dconf-editor
16 Aug Git Part - 1
29 Jul Git remove all local branches except master
12 Jun Oracle sort tables by size
02 May Developing Java code that plays Google Chrome Dino Game
16 Mar Containerization — The Concept
08 Feb My Notes
08 Jan Git pull list of commit messages since last tag

2019

30 Dec Bash format date append static time
26 Nov Oracle count records by hour
24 Nov When less is more
30 Oct RedHat VM last patched duration in days
26 Oct Replacing very with an elegant word
21 Sep Java security edg option
11 Sep Linux KDE power mnanagement not working
19 Aug Linux taskel apt-get failed (100)
09 Aug Use sed to find and replace
14 Jul Oracle update data by using replace
18 Jun Git undo most recent local commits
20 May HikariCP Connection Pool Analysis
19 Apr Git override global email and name for a project
25 Mar Docker container ignore host verification
17 Mar Using curl and grep to select currently active endpoint
14 Feb Using grep to search for multiple entries
10 Jan Use curl to download a file

2018

16 Dec Use wget and curl with headers
14 Nov Kotlin JPA id fo composite key
28 Oct Oracle plsql calling procedure using java
09 Sep JIT performed dead code elimination on my code
05 Aug Oracle plsql DDL in procedure
07 Jul Oracle plsql All Commands
12 Jun Oracle plsql Part 12
02 May Oracle plsql Part 11
22 Apr Artificial Neuron explained using Boolean gates
10 Mar Developing Spark Java Api Endpoints using Annotations
17 Feb Oracle plsql Part 10
25 Jan Java jackson ObjectMapper configuration
10 Jan Oracle plsql Part 9

2017

09 Dec Oracle plsql Part 8
04 Nov Oracle plsql Part 7
14 Oct Oracle plsql Part 6
10 Sep Oracle plsql Part 5
04 Aug Oracle plsql Part 4
01 Jul Oracle plsql Part 3
05 Jun Oracle plsql Part 2
28 May Oracle plsql Part 1
12 Apr ssl certificate convert and import
01 Mar Chef Solo with virtualbox and vagrant part 5
04 Feb Chef Solo with virtualbox and vagrant part 4
02 Jan Chef Solo with virtualbox and vagrant part 3

2016

12 Dec Chef Solo with virtualbox and vagrant part 2
22 Nov Chef Solo with virtualbox and vagrant part 1
19 Oct Maven dependency tree
06 Sep Maven run install with controlled test execution
12 Jul Openssl view website certificate chain
05 Jun Java keytool add cert to keystore
25 May Oracle intersect keyword
18 Apr Oracle union keyword
15 Mar Oracle minus keyword
18 Feb Oracle parse xml and get tag value
06 Jan Oracle create foreign key

2015

22 Dec OSX Soapui add jssecacerts to packaged jre
18 Nov Linux add htop in menu
11 Nov Linux bash loop pn user input with if
29 Oct Linux bash loop on user input
19 Oct Linux nemo file explorer edit left hand menu bookmarks
19 Sep Linux bash call functions
11 Aug Linux base64 encode decode
16 Jul SVN sample commands
24 Jun Kerberos keytab part-6
12 Jun Linux filter json using jq
19 May Kerberos keytab part-5
11 Apr Kerberos keytab part-4
04 Mar Kerberos keytab part-3
26 Feb Kerberos keytab part-2
16 Jan Kerberos keytab part-1

2014

18 Dec Jenkins ant script to create a maven branch and release project
11 Nov Jenkins ant script to ssh and chef servers by using ssh key
22 Oct Jenkins ant script to ssh and chef servers by passing credentials
17 Sep Jenkins ant script to ssh and restart remote application
10 Aug Jenkins ant script to loop and stop servers
28 Jul linux curl request stats
22 Jul Trying Scala
12 Jun Java keystore and jar signing
20 May Ubuntu Safely remove usb device
14 Apr Flux on linux
08 Mar Convert xsd to java using jaxb2-maven-plugin
04 Feb Use maven antrun plugin to create directory in target folder
02 Jan Script to start stop Jboss in background

2013

22 Dec Linux .ssh folder permisisons for public private key authentication
14 Nov Using curl to show error only
10 Oct Linux Startup Basic Commands Compilation
11 Sep Linux wget disable retry
01 Aug java7 TLS 1.2
21 Jul linux mounting network drive
10 Jun linux download youtube videos
16 May awk remove trailing space
24 Apr java jssecacerts
14 Mar Linux openvpn connect using config
11 Feb Linux screen multiplex console
20 Jan Linux bmon network stats

2012

15 Dec Openssl check time to transfer
29 Nov Openssl generate password hash
15 Oct Linux install ca or root cert
05 Oct Openssl view website ssl certificate dns entries
24 Sep Linux check graphics card
14 Sep Openssl extract website ssl certificate
08 Aug Openssl view website ssl certificate expiry date
04 Jul Openssl generate rsa key
12 Jun Java create new keystore
20 May Java add aes key to keystore
19 Apr Java keytool list keystore grep alias and validity
28 Mar Linux shell loop wait count data lines
18 Feb Oracle update records for a specific day
18 Jan Linux control network interface using ip and dhclient
08 Jan Oracle select n rows
08 Jan Oracle select using date and time

2011

18 Dec Linux change default shell
04 Nov Java ConcurrentHashSet
11 Oct apt update architecture warning
05 Sep dpkg remove broken installation using apt
27 Aug dpkg and apt install missing dependencies
24 Jul linux curl read write cookies
17 Jun linux nmap port scan
16 May linux poll endpoint
04 Apr linux mount ntfs partition via fstab
15 Mar linux force command exit status as true
12 Feb maven install skip test run single test ignore ssl errors
09 Jan linux configure ulimit

2010

15 Dec linux awk filter using pattern1 or pattern2
02 Nov linux use comm command to find common lines
12 Oct Java request credentials from user via ntlm
22 Sep Java Inner Classes
12 Aug Java Assert
20 Jul Java Enum
11 Jun Linux mount swap partition to a file
25 May Java split backslash
04 Apr Java new line character
15 Mar linux check process limits
12 Feb Java static block thread safety