By Default, when you install and configure JBoss AS 7, the management port 8080 can be accessed only by launching a browser from the system where you’ve installed the Jboss, and going to http://localhost:8080 or http://127.0.0.1:8080 When you connect to the Jboss AS 7 from a remote machine, using the ip-address, it will not work. [...]
Ramesh Natarajan
When you install PostgreSQL, by default connection to the database using TCP/IP is not allowed. When you try to connect from a client to a remote PostgreSQL database using psql command, you might get “psql: could not connect to server: Connection refused” error message. In the following example, from a client machine, we are trying [...]
I’ll be conducting a hands-on workshop on Linux sysadmin. This will be an one day event with focus on hands-on training. In this all day workshop, you’ll be working on several lab exercises on a Linux system. This workshop is for newbies or intermediate users of Linux who would like to become proficient in Linux [...]
If you are a newbie in Linux system administration, or an experienced Linux power user, who does typical sysadmin tasks by yourself on your system, you’ll definitely find few books from this list helpful to add to your library. UNIX and Linux System Administration Handbook, by Evi Nemeth, Garth Snyder, Trent R. Hein, Ben Whaley. [...]
If you are a Linux sysadmin, working in an environment that uses lot of Oracle products, you might be in a situation to explore the Oracle virtualization product called OVM. In OVM, you’ll typically use a pre-existing OVM templates for a particular Linux distro (or Windows) to create a virtual machine. But, you can also [...]
The most beautiful things in the world cannot be seen or even touched, they must be felt with the heart. ~ Helen Keller Happy New Year to all TGS readers from Me and My Daughters (Diya and Neha). We wish you and your family a happy and prosperous New Year. With your tremendous love and [...]
When you are running RabbitMQ server in production environment, it is essential to monitor RabbitMQ to make sure it is up and running properly, and all the messages in the RabbitMQ are getting processed properly. If you are already using Nagios for your enterprise monitoring, you can monitor RabbitMQ using plugins. nagios-plugins-rabbitmq is a Nagios [...]
There is no question that smartphone has changed the way how we live. For most part, it has enhanced the quality of our life dramatically. But, the question we all should ask ourselves is that are we smart in how and when we are using our smartphones? Let us not mistake information for knowledge. Just [...]