OpenSSH VPN technology, installed by default on most Linux, BSD, and Unix systems, lets you mix and match different clients and servers easily.

• Android gains market share
• VMware Workstation
• Perforce on Demand
• openSUSE 12.2 released
• CUDA 5 rc
• Web Foundation index measures world
• New Z shell release first since 2004

Are you ready for IPv6? Celebrate International Sysadmin Day with a free copy of the ADMIN IPv6 Special courtesy of Splunk and ADMIN Magazine.

PAC, with its convenient graphical connection manager, is a Linux application that manages SSH and other connections. The tool supports macros and lets users send commands to an entire cluster of servers simultaneously.

Did you leave your system running? Did you forget to start a critical backup? Control your Linux computer from anywhere with an Android phone.

Even tried and trusted configurations that have proved their value through the years can be tripped up by special cases – for example, all of your users logging in with the same IP address. Experienced administrators and Bash aficionados will then enable debugging and launch a systematic search for configuration errors.

The big virtualization tools like KVM and Xen can’t compete on a small scale with resource-spare cgroups and Linux Containers.

The Wireshark free network sniffer rolls out 1.6 release with advanced features.