When you are using Chef to manage all your servers and network equipments, you should first create cookbooks and appropriate recipes. On all your remote servers, you’ll use chef-client to execute the recipes from the cookbook. In this tutorial, we’ll explain how to use knife command to create and manage your Chef cookbooks. The knife [...]
Ramesh Natarajan
If your application is performing lot of deletes and updates on MySQL database, then there is a high possibility that your MySQL data files are fragmented. This will result in lot of unused space, and also might affect performance. So, it is highly recommended that you defrag your MySQL tables on an ongoing basis. This [...]
The easy way to manage an Amazon AWS EC2 server is from the AWS management console GUI. But, if your environment has multiple servers, then it gets bit tedious to manage it from the AWS GUI. Also, if you are Linux sysadmin, you would prefer to manage your EC2 instances from the command line. Pretty [...]
If you have Oracle database running on your environment, even if you are a developer or linux sysadmin, you might end-up doing some basic DBA tasks on development instance. One of the essential DBA task is to manage UNDO on your Oracle database. Oracle will temporarily store the data manipulation transactions in the UNDO area [...]
When you get your hands on a chromebook, the first thing that you’ll notice is the keyboard looks different. Chromebook is missing DELETE and CapsLock Key (along with few other keys) that you are used to seeing in a keyboard. This tutorial explains everything that you need to know about your Chromebook keyboard shortcuts. Note: [...]
If you are new to docker, and if you have taken over a system that already has docker application running, you should at least know how to maintain it. This quick tutorial explains how to start, stop, remove, restart, and view status of docker container application using docker-compose. docker-compose is very helpful when you are [...]
On a VMware ESXi server, you can create a new VM and install a guest OS on the VM using a CD or DVD. For this, you need physical access to the server to insert the installation CD or DVD, which might not be possible, if the server is in a remote datacenter. The quick [...]
Chef is an IT infrastructure automation software, which can be used to manage all your servers and network equipments in your organization. You need a chef workstation when you want to interact with the chef server, or any physical nodes (servers, network equipments, etc) in your infrastructure. On a chef workstation, using several chef related [...]