Digital Issues

Virtualization saves money, saves space, and helps you build a stronger web presence. We show you some top tools for next-generation virtual environments.

Cover stories:

• Auto-Installing XenServer: Install the XenServer hypervisor over the network.
• Archipel: This cross-hypervisor management tool chats with servers over the Jabber protocol.
• Open Dropbox Alternatives: Check out these free alternatives to the popular Dropbox service.
• Cross-Cloud Services:A cross-cloud service lets you manage instances across multiple providers.

Linux 3.0: Not so much is brand new in the Linux 3.0 kernel, but much has changed since the original 2.6 release.

Cover stories:

• Linus Torvalds: Linux creator Linus Torvalds reveals the state of the kernel and looks at the path ahead.
• Linux 3.0: We take a close look inside the Linux kernel.
• Knoppix Architecture: We also take a tour of the most popular Live Linux.

Real-World HPC: High performance isn't just for research institutions anymore. Universities, hosting companies, hospitals, and even some mid-range corporate networks are taking up the HPC challenge.

Cover Story:

• HPC: Buying the hardware is only the first step in the path to building your own high-performance cluster. This month, we take you through the steps of setting up your own HPC system with Kickstart, SSH, and Son of Grid Engine.

The New Web: Prepare for the next-generation web, as HTML5 rolls out some powerful new cross-platform development features and the Internet moves from IPv4 to IPv6.

Cover Story:

• HTML5 Graphics: HTML5 provides some powerful graphics capabilities for building cross-platform applications.
• Web Mapping: Web Mapping: Integrate maps into your website with OpenLayers, MapFish, and Mapbender.
• IPv6 Programming: IPv6 in C/C++, Python, and Perl.
• BlueGriffon: This versatile web editor supports HTML5 and CSS3.

DVD Theme: Ubuntu 11.10 Sixpack



Data Rescue: Malware file corruption, formatting and installation accidents, electrical surges, or just old hardware - your data is vulnerable in many ways.This month, Klaus Knopper steps in to show you that all is not lost: You can still salvage much of your original data from the wreckage of your disk.

Cover Story:
Data Rescue: Two tools - TestDisk and PhotoRec - can find and restore damaged files. We show you how to use these tools and introduce you to some of their advanced features.

Interoperability: If it were just Linux, the world would be a happy place. But you have to play alongside Windows, Macs, and mobile devices – not to mention the cloud. So come on in; diversity’s fine.

Cover Stories:

Filesystems: Sharing files doesn’t have to lead to conflict. We show you some filesystem tools for mixed environments.
Linux for Macs: Mac brains, brawn, and beauty just waiting to join with the free spirit of Linux.
MS Office in Wine: If you want or need to use MS Office, we show you how to have your Office and Linux, too.



SSH Tricks: Linux users and sys admins rely on the SSH secure shell for remote access and management. But SSH can do much more. This month, we explore some advanced techniques for secure communication with SSH.

Cover Stories:

SSH Tricks: The secure shell comes with many advanced features, including support for compression, dynamic forwarding, and GUI-based remote control.
SSH Tunnel Connections: An SSH tunnel is a fast and easy alternative to a conventional VPN. We’ll show you a pair of promising SSH tunneling tools: Sshuttle and PuTTY.
Remote Disk Monitoring: Learn about a home-grown solution for monitoring remote disks with SSH and Ruby.
Debugging for Admins: Practical tips for troubleshooting and debugging on a real-world network.

Security: Protecting, Patrolling, and Deleting

Cover Stories:

Data destruction tools, Surricata: next-generation intrusion detection, protecting email with GPG.

Features on Anonymous, a hacktivist group that uses the Internet for social disobedience, UPnP: stream music and video on the LAN.

In the Clouds

Bring it on – the cloud wants to ease your burden. We show you how to measure website performance, how to create virtual appliances, and how to build a cloud game server.

Cover Stories:

• Load Testing the Cloud: Know which numbers matter when you measure performance.
• BoxGrinder: A virtual appliance manufactory.
• Building a Cloud Game Server: Don’t hog the home bandwidth; run your games in the cloud.

DVD contents are not available with the digital version of the magazine.