The Cisco IronPort Email Security Appliances (ESA) have been deployed in thousands of networks to accept, filter, and deliver email messages. The ESA is easy to deploy and its security-filtering settings are effective right out of the box. However, many organizations are looking for more from their messaging environment...

Today, data centers are the beating hearts of the companies they serve. Data centers process billions of Internet transactions every day. It's therefore critical for companies and IT organizations to understand the state-of-the-art in data center design. Narrow aspects - such as cooling, wiring, or power usage - are often the subject of...

Initially, the notion of a business case for cloud computing seemed almost redundant. It seemed to me that the cost savings associated with...

As a final exam preparation tool, the CCNA Wireless (640-722 IUWNE) Quick Reference provides a concise review of all objectives on the new exams.  The short eBook provides readers with detailed,...