For disabling the GUI login mode, do the following steps
Open the terminal and do the following commands as root user or sudo user.
Edit /etc/inittab, enter:
Thursday, April 21, 2016
How To Install the Munin Monitoring Tool on Ubuntu 14.04
Introduction
Munin is a system, network, and infrastructure monitoring application that provides information in graphs through a web browser. It is designed around a client-server architecture and can be configured to monitor the machine it's installed on (the Munin master) and any number of client machines, which in Munin parlance, are called Munin nodes.
Wednesday, April 6, 2016
How To Map User Location with GeoIP and ELK (Elasticsearch, Logstash, and Kibana)
Introduction
IP Geolocation, the process used to determine the physical location of an IP address, can be leveraged for a variety of purposes, such as content personalization and traffic analysis. Traffic analysis by geolocation can provide invaluable insight into your user base as it allows you to easily see where they users are coming from, which can help you make informed decisions about the ideal geographical location(s) of your application servers and who your current audience is. In this tutorial, we will show you how to create a visual geo-mapping of the IP addresses of your application's users, by using a GeoIP database with Elasticsearch, Logstash, and Kibana.
How To Use Kibana Dashboards and Visualizations
Introduction
Kibana 4 is an analytics and visualization platform that builds on Elasticsearch to give you a better understanding of your data. In this tutorial, we will get you started with Kibana, by showing you how to use its interface to filter and visualize log messages gathered by an Elasticsearch ELK stack. We will cover the main interface components, and demonstrate how to create searches, visualizations, and dashboards.
Adding Logstash Filters To Improve Centralized Logging
Introduction
Logstash is a powerful tool for centralizing and analyzing logs, which can help to provide and overview of your environment, and to identify issues with your servers. One way to increase the effectiveness of your ELK Stack (Elasticsearch, Logstash, and Kibana) setup is to collect important application logs and structure the log data by employing filters, so the data can be readily analyzed and query-able. We will build our filters around "grok" patterns, that will parse the data in the logs into useful bits of information.
How To Gather Infrastructure Metrics with Topbeat and ELK on Ubuntu 14.04
Introduction
Topbeat, which is one of the several "Beats" data shippers that helps send various types of server data to an Elasticsearch instance, allows you to gather information about the CPU, memory, and process activity on your servers. When used with the ELK stack (Elasticsearch, Logstash, and Kibana), Topbeat can be used as an alternative to other system metrics visualization tools such as Prometheus or Statsd.
How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on Ubuntu 14.04
Introduction
In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on Ubuntu 14.04—that is, Elasticsearch 2.2.x, Logstash 2.2.x, and Kibana 4.4.x. We will also show you how to configure it to gather and visualize the syslogs of your systems in a centralized location, using Filebeat 1.1.x. Logstash is an open source tool for collecting, parsing, and storing logs for future use. Kibana is a web interface that can be used to search and view the logs that Logstash has indexed. Both of these tools are based on Elasticsearch, which is used for storing logs.
How To Install and Configure Elasticsearch on Ubuntu 14.04
Introduction
Elasticsearch is a platform for distributed search and analysis of data in real time. Its popularity is due to its ease of use, powerful features, and scalability.
