Relocating Family To KSA

After almost one year, finally i can reunite with my family in KSA. I arrived in KSA at 22 Feb 2020, and a week after, KSA government lock down the country due to spreading of Covid-19. But also because of this Covid-19, almost all the system in KSA goes online. Issuing Family Visa, Issuing IQAMA, …

Data Structure and Algorithm at glance [Part 1]

Several times, i interviewed programmer candidates, and mostly they failed in technical test about data structure and algorithm. Although this subject is common or maybe mandatory subject in college, especially in computer related program. but somehow, in fact, as time goes by, some of student will enough when they can create working apps or system, …

Load Balancing With NGinX

Why we need load balancer ? can we just create one very stable server which is the failure rate zero and when we need to implement this load balancer ? Load balancing at least has two main purposes : Increasing fault tolerance Distributing load Increasing fault tolerance means ensuring and increasing uptime and reliability current application …

Fixing Encoding Issue on wordpress

Last Week, i was struggling to revive old blog which is still using old wordpress engine due too machine failure. And migrate it using nginx and php-fpm instead of apache2 web server. Migration step, will be explain later in separate post. This post will focus in one major problem i face while migrating the blog, …

Spin Up Terraform and Chef – Part 2

This the second part from this post . In this post we will cover Chef, how to write recipes, configure and test our recipes on target host managed by Vagrant. What is chef ? chef is configuration management and automation platforms to achieve speed, scalability and consistency by turning infrastructure into flexible, human-readable, versionable and testable …

Spin Up Terraform and Chef – Part 1

What is terraform ? cited from their documentation : Terraform is a tool for building, changing, and versioning infrastructure safely and efficiently. Terraform can manage existing and popular service providers as well as custom in-house solutions. For detail feature and other terraform offer, please refer to their concise and complete documentation. Terraform has four main component …

Grant Table User to Another User [Oracle]

Below is snippet command for granting user table to another user declare cursor t_name is select table_name from user_tables ; command varchar2(500); begin for c in t_name loop command := 'GRANT SELECT, INSERT, UPDATE, DELETE ON ' ||c.table_name|| ' TO <other_user>'; dbms_output.put_line(command); execute immediate command; end loop; end; Jakarta, 24 August 2016   A. Ahmad Kusumah

Install ORACLE on AIX 6.1

Oracle 11g Installation procedure on AIX system v.6.1 environment, on IBM P-series machine is summarized from best practice at one of our  client. This procedure, will be followed by Websphere Application Server Installation procedure and configuration on the same environment and machine. The steps of Oracle Installation 11g on AIX System is briefly described as …

Pointing Domain into AWS EC2

Pointing domain into AWS EC2 is quite simple, what need todo are : Create EC2 instance, then write down the IP address (i.e 10.10.2.10) Open Route 53 in AWS console (https://console.aws.amazon.com/route53/) Now you are in route 53, select DNS Management, or choose Hosted Zones in sidebar menu, then select Create Hosted Zone Type  your domain …

Setting Up Spark on OSX [el Capiten]

Apache spark is one of fast and reliable engine for large-scale data processing. This is simple step of installing spark on mac os, using maven. you can also using sbt to install spark. Download Apache Spark from here , you can choose any version you'd like. in this guide, i'll pick version 1.4 Unzip the downloaded …