Latest Articles

02 May 2014

In this article we will configure Java 8 in Eclipse IDE.

First you will need to download the following prerequisites (if you haven't already): Download the Java 8 JDK/JRE from Oracle download website Download Eclipse Kepler or later (in this article I hav... Read more

How to configure multiple Java web applications in New Relic

21 September 2013

In this tutorial we will see how to configure multiple Java web applications in New Relic

When we configure the New Relic agent to monitor our Java based application server it will by default aggregate all deployed web applications in a single application and show the corresponding aggrega... Read more

apm configuration java new-relic web

Java EE CDI beans deployed in external library (WEB-INF/lib JAR file)

20 May 2013

In this tutorial we will see how to deploy CDI beans contained in an external JAR file avoiding org.jboss.weld.exceptions.DeploymentException: WELD-001408 Unsatisfied dependencies for type [...] with qualifiers [@...] at injection point ... exception.

One of the objectives of the beans.xml file in a CDI application is to notify the container where to search for CDI managed beans. In this short tutorial we will see how to configure a JAR file - cont... Read more

cdi configuration java java-ee

Postfix + OpenDKIM (DKIM) configuration example

20 April 2013

In this tutorial you will learn how to configure Postfix together with OpenDKIM in order to send signed messages according to DomainKeys Identified Mail (DKIM).

One of the standard and widely used email message sender authentication mechanism is DomainKeys Identified Mail (DKIM). DKIM relies in private/public key pair cryptography (asymmetric cryptography).Th... Read more

admin configuration dkim linux mail opendkim postfix smtp

Postfix + Dovecot + SSL configuration example

30 March 2013

In this tutorial you will learn how to configure Postfix integrated with Dovecot. Dovecot will be used for user authentication and POP3 service. We will also configure our services to be available over SSL.

Postfix mail server delivers a high level of flexibility in what matters to configuration and customization. In this tutorial we will integrate Postfix with Dovecot in order to delegate user authentic... Read more

admin configuration dovecot linux mail postfix smtp ssl

Configuring CDI with Tomcat example

23 March 2013

In this tutorial you will learn how to configure Contexts and Dependency Injection (CDI) with Tomcat.

Tomcat is not a full-blown EE container so we must include some required libraries in order to enable CDI support. In this tutorial we will cover CDI configuration in Tomcat and also provide a working... Read more

cdi configuration java java-ee tomcat web

Postfix Mail Server configuration tutorial

09 March 2013

In this tutorial you will learn how to deploy a simple configuration of Postfix Mail Server.

Postfix is an open source MTA or SMTP server. In this tutorial we will deploy a very simple configuration of Postfix. We will see in other tutorials how we can deploy more complex configuration includ... Read more

admin configuration linux mail postfix smtp

About the author

Gonçalo Marques is a Software Engineer with several years of experience in software development and architecture definition. During this period his main focus was delivering software solutions in banking, telecommunications and governmental areas. He created the Bytes Lounge website with one ultimate goal: share his knowledge with the software development community. His main area of expertise is Java and open source.

GitHub profile: https://github.com/gonmarques

He is also the author of the WiFi File Browser Android application: