DBA – MySQL, PostgreSQL, MongoDB, Oracle
Posts about Unix and Windows operating systems installation, configurations, troubleshooting, patching and system administrations.
Background When you create a virtual machine in VirtualBox the virtual machine or OS needs internet or the virtual machine and your physical machine need to talk to each other or the virtual machine need to be reached from other computers from the network and vice-versa. These are done by VirtualBox networking which uses its…
Background Cloning of a virtual machine is the easiest way around to get the copy of the same operating system environment which saves time and effort of another installation and configuration of the same. Workaround Choose the virtual machine that should be cloned. Right click on the VM and select “Clone”. Provide the “Name”, “Path”…
Background Individuals working in the soft engineering like database, software, development, quality assurance more often needs to deploy & configure different things which need to have an Operating System obviously and sometimes more. With the advent, maturity and easy to get virtual technologies like VirtualBox, Vmware and Parallels Desktop and others it is easier to…
Background: I need email functionality to send emails from the web server by querying data from MySQL database and email the result to appropriate recipient. Workaround: Install sendmail. sudo apt-get update sudo apt-get install sendmail Install mailutils. sudo apt-get install mailutils Configure the /etc/hosts file, provide your domain name in the following format 127.0.0.1 localhost…
Case: Today morning on my development machine (Windows 10 ) I can’t login to the oracle schema with toad or from my application showing Oracle Error : No listener. Upon further investigation found that listener is not starting Automatically though its service configured to run automatically. Workaround: To resolve the “No Listener”, restarted workstation several times after changes…