With an increasing number of networks and mission-critical applications running on Linux, system and network administrators must be able to do more than set up a server and rely on its default configuration. Advanced Linux Networking is designed to help you achieve a higher level of competence. It focuses on powerful...

Take a proactive approach to Enterprise Linux security by implementing preventive measures against attacks—before they occur. Written by a team of Linux security experts, this hands-on resource provides concrete steps you can take immediately as well as ongoing actions to ensure long-term security. Features include examples using Red...

Linux is hot! It's cost-effective, secure, and comes in a lot of varieties. And with this book to walk you through it, choosing and using a Linux distribution is...

To keep your Linux systems secure, reliable, and productive, you must stay current with patches and updates. But, until now, it has been difficult to find usable,...

Zimbra is open-source server and client software for messaging and collaboration: email, group calendaring, contacts, and web document management and authoring. The Zimbra server is available for Linux, Mac OS X, appliances, and virtualization platforms. The Zimbra Web 2.0 Ajax client runs on Firefox, Safari, and IE, and features easy...