Upgrade GNU/Linux Fedora from 14 to 15, 16, 17 and eventually 18 (with yum)

To upgrade GNU/Linux Fedora from 14 to 15, 16, 17 and eventually 18 with yum, there is no problem; you can follow the same instructions from

I'll be back

Hi everyone,

I'm pleased to announce I'm now out of few cryonics years ...
I was somehow sliding between parallel universes and eventually find back the good one ...
blah blah blah ...


In coming weeks, be ready to read some exciting articles about 3D Printing, Raspberry Pi 3, Domotics, and some more interesting topics!

UEFI secure boot and Kernel modules load

UEFI is increasingly widespread in recent years.
More recently, the Secure Boot is becoming

Setup local DNS server to bind ALL subdomains

There is various situation where binding ALL subdomains to a specific applications (local or intranet) can be needed; for instance

Disable users login during server Maintenance

In some situations, when performing server maintenance, it is needed to ensure no user can login to avoid data loss or interference.
It can be easily done by