Sajjan's Blog

Installing Commercial SSL Certificate in Zimbra Server

August 21, 2017 sajjanbh Comments 0 Comment

Hey there! In this post, I’m going to share my experience on installing a commercial SSL certificate in Zimbra server. Before I get into the actual installation, let’s briefly discuss about how SSL generally works. First, we need to generate a Certificate Signing Request (CSR) in our server. If you don’t know how to generate it, you should look at the corresponding documentation for your server or application. There are also numerous online CSR generation sites, which prepare the appropriate…

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Setting Up Apache WebDAV Storage With LDAP Authentication

July 31, 2017 sajjanbh Comments 0 Comment

Hey there! Let’s talk about WebDAV today. If you don’t know what WebDAV is, I recommend you to read this wiki. It stands for Web Distributed Authoring and Versioning. It is a set of extensions to HTTP that facilitates collaborative editing and file management. In a nutshell, it enables write permission to the users, who used to have only read access afforded by HTTP. Nowadays, it can also be utilized by collaboration and versioning systems like SVN and GIT. Now, without…

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Deploying OpenLDAP server on CentOS7 – Getting Started Guide

July 25, 2017 sajjanbh Comments 1 comment

Hello there! In this post, I’m going to cover the installation and initial configuration of open-source directory server called OpenLDAP. The platform I’m using here is CentOS 7. So, if you’re on different distribution or maybe in different version, the mentioned steps might slightly vary. What is OpenLDAP? OpenLDAP is an open-source implementation of Lightweight Directory Access Protocol, which is developed and maintained by OpenLDAP Project. LDAP is a platform-independent protocol and most of the linux distribution utilizes it for…

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Deploying a Wi-Fi Hotspot using CoovaChilli and Hostapd in Ubuntu

April 7, 2017 sajjanbh Comments 12 comments

Welcome! This is gonna be yet another post on setting up Wi-Fi Hotspot using CoovaChilli. I’m again writing in this topic because it has been the most searched for and viewed post in my whole blog. I’ve also received some private requests from people across the world regarding this subject. So, I’m going to dedicate this post on setting up a basic hotspot solution in a Ubuntu machine using Coova and Hostapd. Project Overview The host system being used here is Ubuntu…

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How to Increase Size of Root Partition in CentOS

March 30, 2017 sajjanbh Comments 0 Comment

Being a system engineer, I often face scenarios in which I need to resize various system partitions in my Linux servers. Although this task isn’t that difficult, it’s definitely a very critical one because it can lead to the dis-functioning of your whole server. So, we must be very careful and cautious while trying to resize our system volumes. In this post, I’m going to take the extra space from the swap partition and take that space to my root…

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AWS – How I Migrated This WordPress Site to AWS Hosting

February 20, 2017 sajjanbh Comments 0 Comment

Little ago, I posted that I was going to migrate this blogging site to Amazon Web Services (AWS). Now that I’ve already completed the migration, I thought it’ll be worth sharing my migration procedures because there might be people who would like to do the similar task. In this post, I’m going to cover how I performed the backup and export of my content from existing site and then, configured it in AWS environment. So, let’s begin. Backup an Old Site If you haven’t…

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Frankenstein – A Lesson for Artificial Intelligence Part 2

February 18, 2017 sajjanbh Comments 0 Comment

If you made this far, I truly appreciate your time and interest in this subject matter. In case you landed on this post for the first time, please read the part 1 of this article because it won’t make sense without the previous one. Now, let’s continue the story: Story of Frankenstein’s Creature When the creature is awaken, it doesn’t understand anything as a newly born child does. So, not finding anyone to comfort or take care of it, it starts…

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Frankenstein – A Lesson for Artificial Intelligence Part 1

February 18, 2017 sajjanbh Comments 1 comment

Can you imagine a world in which human will be sharing its dominance with some other non-human race? Actually, it is highly probable. Keeping aside the possibility of encountering the Alien life anytime in the future, there is one thing, which possesses the potentiality to outsmart humankind and change the world in a way we human cannot. And the interesting thing is, that smart entity will be our own creation and its deeds will, in a way, be our own deeds….

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Notice: Migration Of This Blog to New Site

February 16, 2017 sajjanbh Comments 0 Comment

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 better hosting service. Accordingly, I’ve setup my blog on Amazon Web Services and the updated site address is https://blog.sajjan.com.np. With that said, I request you to expect…

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Docker: Running Apache Web Server In A Container

February 6, 2017 sajjanbh Comments 0 Comment

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 covered the introduction, basic container usage and default networking in docker. So, let’s now get into more advanced concepts in container virtualization. For this post,…

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