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Autore: Riccardo

Chromebook connecting to KVM hosts via VNC

The RealVNC plugin for chromebook was just released! Thanks to the team that also advice me! My objective is to connect to KVM running hosts that uses VNC protocol. We need to establish an ssh tunnel first. Open crosh by Ctrl+Alt+T type: crosh> ssh ssh> user (your username) ssh> host (IP address or name of…
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Rsync è fantastico!

Per chi non lo conoscesse, rsync realizza copie incrementali fra una sorgente e una destinazione. Ottimo per i backup via rete di cartelle poichè confronta i timestamp dei file e li invia solo se sono cambiati. Ma non ci fermiamo qui. Premessa. Nella nostra server farm abbiamo molti file di grosse dimensioni che sono i…
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about DNS speed and configuration on Ubuntu 12.04

Hi, things have changed from when you have to add nameserver in file /etc/resolv.conf In case of a static configuration in /etc/network/interfaces is possible to add nameservers right here, with the following syntax

As you can see is possible to define multiple nameservers. I will use Google public DNS for resolution because it run…
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Raspberry PI playing HD videos

Per la serie “Nuovi giocattoli da provare in Synaptica Lab” ecco a voi il Raspberry che fa girare un video HD senza lag.

Solve a maze with Blocky

Blocky is a visual programming language sponsored by google. Try to solve a maze with it! Or look at this simple solution:

Resizing kvm qcow2 disk

I followed this steps in order to add some space to a virtual disk in kvm environment convert qcow2 disk to be expandend in raw format:

create extra space, 30G in this case:

merge the two files:

re-convert in qcow2 format:

To be used, the extra space needs to be re-partitioned…
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