Jun 18How to Configure AWS Aurora with an External MySQL Instance for ReplicationMySQL replication is an important part of keeping database backups up-to-date. You might need multiple slaves and wish to use your self-hosted MySQL instance for replication, or you might want to transfer to a different cloud or datacenter. In this article, we’ll look at how we can achieve it. Overview Enable…Dev Ops4 min read
Apr 27Easy Steps to Create AWS VPC with TerraformHashiCorp Terraform is an infrastructure as code tool that lets you define both cloud and on-prem resources in human-readable configuration files that you can version, reuse, and share. You can then use a consistent workflow to provision and manage all of your infrastructure throughout its lifecycle. …Terrafrom5 min read
Apr 17Create SSL Certificate for localhostHave you ever caught up in a situation where you needed HTTPS on your localhost server for development or testing purposes? In this article we’ll see how we can create SSL Certificate for localhost. We’ll move from http://localhost to https://localhost with the help of mkcert tool. mkcert is a simple…Nginx3 min read
Apr 10Setup and Secure MQTT websocket broker with NginxMQTT stands for Message Queuing Telemetry Transport. MQTT is a lightweight, publish-subscribe network protocol that transports messages between devices. An MQTT broker is a server that receives all messages from the clients and then routes the messages to the appropriate destination clients. Overview Download Mosquitto MQTT. Build and Install Mosquitto MQTT…Mqtt2 min read
Mar 26Secure your SSH using fail2ban Ubuntu 20.04Fail2Ban is a Python-based intrusion prevention framework that defends Linux systems and servers against brute-force attacks. You can use Fail2Ban to safeguard SSH on your server from brute-force attacks. It also allows you to keep track of the attack’s strength in terms of the number of authentication tries attempted. Fail2Ban…Fail 2 Ban2 min read
Mar 21Setup MongoDB Replica with Password Authentication in Ubuntu 20.04 LTS.Today we’re going to setup MongoDB Replica with Password Authentication in Ubuntu 20.04 LTS. (1 Master and 2 Secondary) MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. …Mongodb3 min read
Jan 20Copy/paste in Linux using xclipWhen working on the Linux desktop, how do you typically copy all or part of a text file? Most likely, you open the file in a text editor or print in terminal using cat command, select all or only the text you wish to copy, and paste it somewhere. There…Dev Ops2 min read
Dec 26, 2021How to setup Promtail in Ubuntu 20.04Promtail is an agent which ships the contents of local logs to Loki instance. It is usually deployed to every machine that has applications needed to be monitored. It primarily: Discovers targets Attaches labels to log streams Pushes them to the Loki instance In this article i’m using Promtail version…Promtail2 min read
Dec 26, 2021How to setup Loki in Ubuntu 20.04Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate. It does not index the contents of the logs, but rather a set of labels for each log stream. A Loki-based logging stack consists of 3…Grafana2 min read
Dec 25, 2021How to setup Elasticsearch+Kibana and enable Authentication in Ubuntu 20.04The ELK stack is a popular stack for retrieving,visualizing and managing log files in a centralized location. It is a collection of three open-source tools, Elasticsearch, Kibana, and Logstash. Logstash is a free and open source tool for gathering, processing, and archiving logs. Kibana is a web interface that allows…Elk3 min read
