Category: Uncategorized
-
Querying CloudTrail Logs from a centralized S3 Location using Athena
Hello, it’s been some time since my last blog post. Today, I want to discuss the process of querying AWS CloudTrail logs stored in a centralized S3 bucket using AWS Athena. But before diving into the topic, let’s briefly introduce AWS CloudTrail and AWS Athena. AWS CloudTrail is a service that provides governance, compliance, and…
-
Covid-19 Analysis with BigData Applications – Part 3
Hi there! If you’ve been following these blog series, we are looking at a BigData project to analyze Covid-19 data. So far, we have looked at the overall architecture and ETL Spark jobs. In this post, let’s look the scheduler component (Lambda function) in this workflow. The main reason I’m using Lambda here is due…
-
Notice: Migration Of This Blog to New Site
First of all, I’d like to thank you for caring about what I write here. I hope the content available through this site has been useful for you in one way or the other. Because of the increasing visitors and size of the content published in this blogging site, I’ve decided to migrate it to a…
-
Docker: Running Apache Web Server In A Container
This is my second post for this blog series on Docker. If you haven’t already read my previous post, I highly recommend you to read that article first. Here, I’m going to dive a little deeper into container management by working on a further complicated application and advanced features of docker. Until now, I’ve already…
-
CubLinux – Yet Another Linux Distribution
Welcome to my yet another post! If you’re a fan of Linux, then this article is definitely for you. Here, I’m going to write a little review of a new Linux distro that I’ve been using lately. I don’t know about you, but I hadn’t heard about a Linux distro called CubLinux before. It seems…
-
PHP7 – What’s New and Better in PHP?
In some of my previous posts, I discussed about using PHP as part of LAMP for web application development. Well, if you haven’t noticed it already, when I said PHP, I was talking about PHP version 5 or 5.x. However, now I’m going to specifically talk about PHP7 and what new features it brings to…
-
GIT – A Simple Getting Started Guide For Git
There is a term called “Git” in IT field, which may not be much familiar to most people despite being one of the most useful and handy tools in the industry. So, in this post, I’m going to cover the introduction and getting started guide for Git so that more people will be able to understand…
-
LAMP-Securing Your Web Server With SSL
Hello and welcome! In my previous post on LAMP web server, I discussed about its installation and configuration inside CentOS environment. Today, I’m writing on how to setup SSL certificate in our website and other security related configurations as well. Installing SSL Certificate First of all, let’s install mod_ssl package from MOD Security. It’s done in CentOS…
-
Blocking Mails Based on Subject in Zimbra
Welcome back! In this post, let’s talk about tightening our Antispam or Spamassassin in Zimbra. In real-time, there may be a serious reason for filtering and blocking mails based on subject that contain certain structures or words. Here are the steps to achieve this objective in Zimbra 8.5 and later. 1) Create a policy file inside…
-
Restricting Certain Users from Sending/Receiving External Mails in Zimbra
Hello! In this post, I’m going to talk about how to configure a Zimbra server to restrict certain users from sending or receiving mails from external domains. In order to achieve this objective, Zimbra provides two alternatives: one using CBPolicyd (web based) and another using MTA restrictions (cli based). Here I’m covering both methods. First,…