Recently I premnožili invitations for various applications on Facebook (FB). So far I did not use one because I know to make sure that the application is safe or not. If you resist the temptation to send me an invitation to other applications, make sure you was verified FB developers.
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About what IPv6 is and how it works here will not break down. Many of you will find on Wikipedia . Today, IPv6 is not yet sufficiently widespread. Therefore, tunneling over IPv4. In this article, bringing you instructions on how to operationalize IPv6 over IPv4 in Linux.

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Sometimes that can be mass-edit rights to files or directories. To use the two commands chmod (for changing rights) and chown (to change the owner). As you know, such rights may be R for reading (read), W for write (write) and X to run (Execute). The file or directory can grant access to users according to the settings for the owner (user) for the whole group (group) or all (others). A lot of it is described on Wikipedia or manually for chmod (man chmod) and chown (man chown)

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It's this for some time, which is seen as a generator of online resources for distribution Ubuntu.
The advantage is that is growing very quickly. Users there can add new resources and has already added a nice pile. Why add a new source? Only in this case, if you want to facilitate the installation and update programs that are obsolete in official sources, or not even there.

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Nowadays, very PC virtualization to spread. At one hardware allows us to run multiple virtual machines. As a result, the saving in funds for the purchase of new hardware and electricity. This solution is particularly suitable for servers. However, virtualization is also available for desktops. There are several different ways to virtualize PCs. All are described in Wikipedia ( http://en.wikipedia.org/wiki/Virtualization ).

Paravirtualisation is virtualization technique that presents a software interface to virtual PC which is similar but not identical to the hardware on which it runs. I know of several programs that allow it (VirtualBox, VMware, QEMU, XEN ...) but personally I only used VirtualBox and VMware.

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