This article shows you how to install and configure a simple mail server called Postfix. It can be used to send emails or act as a email relay server for internal network wherein only one Server is allowed access to Internet and then all clients hosts will redirect email to this Postfix email relay server.

We would need to install two packages via YUM.

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Its possible to add a disk dynamically (without reboot) in a Linux host in Virtual Environment by following some simple steps in this article. In a Virtualized world there is a frequent requirement for adding extra disks/space on the fly, as and when required with "Downtime" being a BIG NO NO....

Once you have added a new disk using vSphere Client interface for the host, go ahead and scan the iSCSI Bus Channel.

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