Friday, December 4, 2020
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Configure Postfix to Use Gmail SMTP on CentOS 8

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Welcome to our tutorial on how to configure Postfix to use Gmail SMTP on CentOS 8 to relay mails. Postfix is a free and open-source mail transfer agent that routes and delivers electronic mail. Postfix MTA can be configured to relay mails through an external SMTP servers such as Gmail SMTP server for a reliable mail delivery. Configure Postfix to...

Configure ELK Stack Alerting with ElastAlert

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Welcome to our tutorial on how to configure ELK Stack alerting with ElastAlert. As much as ELK Stack enables you to collect, process/parse, index and visualize various system data, it can as well be configured to alert on various events. The alerting features enable you to watch for changes or anomalies in your data and perform the necessary actions...

Monitoring Gitlab Metrics with Prometheus and Grafana

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In this tutorial, we will learn about monitoring Gitlab metrics with Prometheus and Grafana. Grafana is a data visualization and monitoring tool and supports time series datastores such as Graphite, InfluxDB, Prometheus, Elasticsearch. Prometheus is a powerful time-series monitoring service, providing a flexible platform for monitoring GitLab and other software products. GitLab provides out of the box monitoring with Prometheus,...

Install Cheat Command on Ubuntu 20.04

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In this tutorial, you will learn how to install cheat command on Ubuntu 20.04. Cheat is a Python based command line utility that allows you to create and view interactive cheat sheets on the command-line. It was designed to help remind *nix system administrators of options for commands that they use frequently, but not frequently enough to remember. Install Cheat Command...

Install Gitlab with SSL/TLS Certificate on Ubuntu 20.04

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In this tutorial, you will learn how to install Gitlab with SSL/TLS certificate on Ubuntu 20.04. GitLab is an open source end-to-end software development platform with built-in version control, issue tracking, code review, CI/CD, etc. It is is a complete DevOps platform, delivered as a single application. Read more about what Gitlab offers on Gitlab Features page. Install Gitlab with SSL/TLS...

Install latest Apache Solr on CentOS 8

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Welcome to our tutorial on how to install latest Apache Solr on CentOS 8. Apache Solr is the popular, blazing-fast, open source enterprise search platform built on Apache Lucene. It is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr powers the search and navigation features of...

Monitor Linux System Metrics with ELK Stack

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In this tutorial, you will learn how to monitor Linux system metrics with ELK Stack. ELK Stack, or if you like, Elastic stack can be used to monitor Linux system metrics with the aid of the Metricbeat. Metricbeat is a lightweight shipper for system metrics. It can collect system-level CPU usage, memory, file system, disk IO, and network IO...

Install latest Apache Solr on Ubuntu 20.04

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In this tutorial, you will how to install latest Apache Solr on Ubuntu 20.04. Apache Solr is the popular, blazing-fast, open source enterprise search platform built on Apache Lucene. It is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr powers the search and navigation features...

Quick Way to Install and Configure SNMP on Ubuntu 20.04

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In this guide, we are going to learn how to install and configure SNMP on Ubuntu 20.04. SNMP is an acronym for Simple Network Management Protocol. It provides an agentless method of managing and monitoring of network devices and servers for health information, system metrics such as CPU load, Physical Memory usage, number of running processes, service state e.t.c...

Easily Install and Setup Cacti on Ubuntu 20.04

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In this tutorial, you will learn how to easily install and setup Cacti on Ubuntu 20.04. Cacti is a complete frontend to RRDTool. RRDTool is a time-series data storage and display system. It stores and display time-series data (e.g. network bandwidth, machine-room temperature, server load average) in a database. It stores the data in Round Robin Databases (RRDs), a...