Nginx Nginx Basic Authentication with Source IP Whitelisting Quick post on how to setup HTTP Basic Authentication and whitelist IP Based Sources to not get prompted for Authentication. This could be useful for systems interacting with Nginx, so that they don't
Java Setup Payara Java Application Server on Ubuntu 16.04 Today we will setup Payara 5 on Ubuntu 16.04 About: Payara is an Open Source Java Application Server. Pre-Requirements: Update and Install Java 8: $ apt update && apt upgrade -y $ apt-get
Storage Create a Logical Storage Volume using LVM on Ubuntu Logical Volume Manager (LVM) - adds an extra layer between the physical disks and the file system, which allows you to resize your storage on the fly, use multiple disks, instead of one,
AWS Expanding the Size of your EBS Volume on AWS EC2 for Linux Resizing your EBS Volume on the fly, that is attached to your EC2 Linux instance, on Amazon Web Services. We want to resize our EBS Volume from 100GB to 1000GB and at the
NFS Setup a NFS Server on Ubuntu Quick post on how to setup a NFS Server on Ubuntu and how to setup a mount point on the client side to interact with the NFS Server. Server Side: In this post
Networking Setup a Site to Site IPSec VPN with Strongswan on Ubuntu Today we will setup a Site to Site ipsec VPN with Strongswan, which will be configured with PreShared Key Authentication. After our tunnels are established, we will be able to reach the private
Linux How to Setup a 2 Node Elasticsearch Cluster on CentOS 7 with some Example Usage Elasticsearch, A distributed, RESTful search and analytics engine Today we will Setup a 2 Node Elasticsearch Cluster on CentOS 7 and go through some API examples on creating indexes, ingesting documents, searches etc.
Linux How to setup a Gateway to Gateway VPN using IPSec on CentOS In this tutorial we will setup a gateway to gateway IPSec VPN using OpenSwan. The Scenario: The scenario we will use in this guide will be specifically in an Amazon Web Services (AWS)
Linux Unable to Launch EMR Clusters with Cronjobs The Issue: I was trying to Schedule the Launch of EMR Clusters using Cronjobs where I have noticed that it fails via cronjobs but passes via cli. The reasoning behind this in my
Linux Setup HTTP Load Balancer with HAProxy When it comes to ensuring that we need our website needs to be online at all times, we need to start looking at High Availability. Today we will be demonstrating a basic setup
Linux Creating a BASH init startup script Create a simple bash init script, and pass the arguments to stop or start a process. In this example we will use the init script to control tcpdump. Pre-Requisites: Create, and apply permissions.
Linux Secure Passwordless SSH using Keys A quick post on how to setup passwordless ssh access between linux hosts. When generating a key pair, it provides you with a public and a private key. You can place the public
Linux Find Command in Linux Post on the find command in Linux. Find files modified in the last 7 days: find /opt/ -mtime +7 Finding Files: find /opt/ -type f -name "abc*" Finding Directories: find /opt/
Linux Setup Domain Controller on Linux using Samba 4 We will be setting up a CentOS Server as Domain Controller using Samba4 and then using a Windows client to authenticate against it. This is a alternative to Microsoft's Active Directory. In the
MongoDB Setup MongoDB on CentOS and Getting Started Guide MongoDB is a cross-platform document-oriented database. Classified as a NoSQL database, MongoDB's structure in are JSON-like documents with dynamic schemas (MongoDB calls the format BSON), making the integration of data in certain types
Linux Setup ELK Stack with Elasticsearch Kibana Logstash Centralized logging, analytics and visualization with ElasticSearch, Filebeat, Kibana and Logstash. Our ELK Stack will consist of: Elasticsearch: Stores all of the logs Kibana: Web interface for searching and visualizing logs Logstash: The
Linux Setup Ruby on Rails for CentOS Ruby on Rails, or simply Rails, is a web application framework written in Ruby. Rails is a model–view–controller (MVC) framework, providing default structures for a database, a web service, and web
Linux Setup Node.js on CentOS Node.js is an open-source, cross-platform runtime environment for developing server-side Web applications. Let's get started on setting up our environment for Node.js and then setup a Sample Application. For this example
Linux Setup Piranha LoadBalancer on CentOS Install Packages: $ yum install piranha -y Our Networking Setup: balancer => Load Balancer IP (10.0.0.1) mail => Virtual Server (10.0.0.5) ms1, ms2 => MailScanner Servers (10.0.
Linux Active Directory Authentication on CentOS We will setup a Linux Server to Authenticate against Microsoft's, Active Directory. Please also lookout for Squid Proxy AD Setup, where we essentially will let our users authenticate against the AD in order
Linux Setup Wordpress on CentOS WordPress is known as one of the most popular blogging platform and content management systems out there. It's built on top of a LAMP Stack and it's really easy to setup. Here I
LAMP Setup LAMP Stack on CentOS Setting up a LAMP Stack is fairly straight forward, here we will go through the steps towards getting it up and running: Installing Packages: $ yum install epel-repo -y $ yum --enablerepo=epel update -y