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Linux has all kinds of great networking abilities built-in; Carla Schroder shares some tips and tricks for navigating multiple computers at home or in an office, and keeping your files where they belong.
Many people use SSH to log in to remote machines, copy files around, and perform general system administration. If you want to increase your productivity with SSH, you can try a tool that lets you run commands on more than one remote machine at the same time.
A remote or online backup service has become quite an important tool for those of us who travel a lot and require some of our files on the cloud for easy access anytime and any place with Internet connection. I have here a list of some of the best online or remote backup services for Linux.
The ability to run both console and graphical programs securely on a remote system using SSH brings you a great deal of freedom. When the communications link to that remote system has high latency, however, running interactive programs such as a text editor on the remote machine can become a real test of your patience.
Over the years I've come across some useful tricks in PHP that are not obvious, but are worth mentioning. This is not meant to be a comprehensive list of all the useful tricks that you can do with PHP.