Tech Blog

The only source of knowledge is experience -- Einstein

Select java version at runtime

  Install Java You download the .tar.gz from the Oracle site to the machine and then unpack it in the correct directory. For example   We install all our java versions into a subdirectory of /opt/java, matching the version number, and create a symlink for which version is the actual active one. So for example:   Create java function Next, we create an initialization file /etc/profile.d/java.sh which creates a function.. Read More

Static IP in VPC

To assign a static IP address for a VPC machine, you can either boot the machine directly with the desired IP address or you can add a secondary static IP address to the node. The second option allows you to quickly re-assign the ip address to another machine   1. Assign the secondary IP address to the network interface Locate the network interface of your instance and select the “Manage.. Read More