Allow Raw Sockets Per Jail

This is more a note for me than a blog post. I struggle a bit with allowing raw sockets on a per jail basis. But if you know how it's done, it's not really hard. At least not with ezjail where you have a per jail config file. Let's say you need raw sockets in a jail named 'examplejail' you just need to add:

export jail_examplejail_parameters="allow.raw_sockets=1"

to the config file which you find under /usr/local/etc/ezjail/examplejail.

Restart ezjail and \o/ you have access from your examplejail to the raw sockets.

My Db9 Adapter

I just want to share with you my awesome setup to connect with BD-9.

old laptop

The laptop run still Debian 6 and everything work as expectet. O.O


I recently bought a Chromecast. And what should I say, I'm happy with it. The setup is easy as expected, you just plug in your hdmi and connect it with power.

How it looks


The down site

When I bought it, there was only one or tow apps I use frequently which support Chromecast. But since then there was a lot movement in this area. A really nice is that google build the "Cast Screen" which allow you to stream you android screen to chromecast. This mean all apps work with chromecast.

The game changer for me personaly was BeyondPod which is super awesome to stream video podcast. An other thing I do regulary is streaming my plex movies to Chromecast.


If you use reguallrly plex, BeyondPod or YouTube and you have a HDMI screen buy a Cromecast.

Install Ruby With Rvm

I explained today how you install ruby with rvm for a friend.

I thought it would be nice if I summarize this a bit.

First of all you want a ruby version manager there is rbenv or rvm and many more. But why you want this? Simply because you never know if you want to test something in an older version or with jruby. I assume that you are running a Linux with bash as your shell.

Enough blabla

Install rvm

\curl -sSL | bash

Load rvm

source .bash_profile

Enable autolib

rvm autolib enable

Install the lastest MRI Ruby

rvm install ruby


Why rvm and not rbev or X is much better than rvm, sure go ahead and use whatever you like (I don't care). And what does autolib? Autolib is a new feature of rvm which install the right native libraries for your system.

Dell T20 Review

Since I start using plex my HP ProLiant MicroServer was to slow to transcoding movies for Chromecast. So I had primarily two options, first I transcoding them not on the fly and save them to my NAS or I buy a new NAS. Obviously I bought a new one.

So I look around an found the Dell PowerEdge T20. The Key features for was the Intel Xeon processor which has enough power to transcoding movies. The possibility that you can extend the ram to 32GB is nice for ZFS which take advantage of that. Also nice is that the ethernet controller a Intel I217-LM is. Intel has a much better record for building stable and supported network controller.

The downsides on my opinion are that only 4 hard drives fit in the case. And these hard drive cartridges don't look really rock-solid for me.

ssd image


I upgrade the my RAM to 20GB, for this you can checkout my other blog post about this. For disks I use three WD Black with each 2TB space. And for my system drive I use one of my old SSD, just because I can.

For the future I plan to upgrade it with a network controller to play with things like LACP.


What should I say, in a normal office environment you can't hear it. But it has two fans so you can hear it if it's realy quiet, but for the most environments this shouldn't be that big deal. So if you searching for something quiet and powerful I can really recommend the Dell T20.

BIOS update

My BIOS version was A02. So you can simply go to the dell support site, download the BIOS .exe, copy it to your FAT formatted USB stick and select in the start menu (F12) BIOS Update. For some reason I must unplug it to restart.


I run a FreeBSD 10 on it. Maybe I extend on this a bit what software I use. But for now, I look for me that every part of the hardware supportet by FreeBSD by default. (I like that)