For those who seek help in different areas of software and hardware platform.

How To Set Up an Apache Active-Passive Cluster Using Pacemaker on CentOS 7


High availability is an important topic nowadays because service outages can be very costly. It's prudent to take measures which will keep your your website or web application running in case of an outage. With the Pacemaker stack, you can configure a high availability cluster.
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Which Network Adapter is Appropriate for Your Virtual Machine


Choosing a network adapter depends on the VMware ESXi version number and the guest operating system running on the virtual machine. This guide describes the different network adapter options available for VMware ESXi virtual machines.
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