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 Story:

• 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.

Also in this issue:

• Table of Contents
• Comment: The Right Stuff
• On the DVD: CentOS 6.2
• DVD Inlay
• News
• Tech Tools
• coLinux: Cooperative Linux lets you run a user-mode version of the Linux kernel natively on Windows.
• Gnome Broadway: Broadway runs Linux applications natively in the browser, with help from HTLM5 and Gtk+.
• Charly – PortSentry: Port scans are the first step in an attack; PortSentry identifies and logs port scans, then runs commands.
• Security Lessons – Self-Defense: Spam, the silent attacker, takes up resources better used elsewhere.
• Privilege Escalation: This practical example shows you how attackers use privilege escalation to get control.
• FLOW3: This PHP framework supports rapid development of enterprise web applications.
• Perl – The Middle Way: Intercept unwanted web content directed at your embedded device.
• Ask Klaus! Klaus helps a reader with an intranet in an isolated locale and looks at sources of segfaults.
• Command Line – The Z Shell: Discover the versatility of zsh.
• Workspace – Fotoxx: Process and tweak photos with this lightweight program.
• TuxGuitar: Score, compose, and play back your songs without reading music.
• ImageMagick Tricks: Uncover ImageMagick’s advanced functions.
• Desktop Search with Recoll: Index and manage your files.
• Doghouse – Independent Means: China’s announcement to limit rare earth production reveals national security weakness.
• Kernel News: Zack reports on the Android Mainlining Project, a display driver debate, and more.