The site Linked Things will accumulate information about products that are connected via the internet or local networks and can be controlled, combined and programmed.

Currently I’m aiming for one new post per week, but if you’ve got links or ideas please use the contact form on the page to send me your messages so I can gather as much data as possible about the internet of things and up the volume of posts with your help.

And please spread the word!

There have already been a number of attempts to offer this kind of service, the one I used quite a bit was Simplify Media which unfortunately was shut down. What makes Audiogalaxy truly stand out for me is it’s easy of installation, performance and iOS integration. I’ll outline the steps necessary to get the whole system up and running on a Mac and an iPhone.

• First go to audiogalaxy.com and click on Sign Up. The easiest way is to use Facebook connect so we’ll choose that option.
• Next you’ll be offered to download the client application for your computer which already has your login data included, so just drop it into your Mac’s application folder, start it and you’re good to go.
• The website patiently waits to detect the client application on your computer which then starts scanning your default Music location.
• It can take quite a while to index a big library, so hop over to your iPhone in the meantime and download the Audiogalaxy App from the App Store.
• Start the Audiogalaxy App on your iPhone, log in with Facebook and you’ll be instantly connected to the music on your computer including all the Playlists you’ve set up in iTunes.

From now on you’ll be able to play all your computer’s music via the website or your mobile device (an Android client is available as well). What makes this service really special is the level of integration they’ve been able to accomplish with iOS. It can really replace you iPod App on the iPhone by offering background music playing, access to play/pause/skip/volume controls via all the available shortcuts and the headset buttons. One last thing I was doubtful about was how it will perform while being on the move, so I tested it out on my morning commute today and let me say I was extremely pleased.
I started music playback before leaving my appartement, so I was still connected to my home WiFi. When I reached the street my iPhone lost contact to the WiFi and switched to 3G, this only triggered a ~2 second gap in playback, after which the music just played on from where it lost contact. Performance on 3G is absolutely brilliant and I could keep on listening during the whole train ride. What was astonishing was that there is a tunnel on my way to work where I know that there is no cellular access at all (phone calls always drop while going through that tunnel), the Audiogalaxy app apparently had enough of the music buffered, so playback continued without interruption. When I got close to my office I once again experienced a little gap in the playback, that was when my phone picked up the company WiFi.

Let me finish of by stating a few things I’d love to see improved/added to the iPhone client:

• Submission of played tracks to Last.fm
• Updating of the playcount in iTunes’ library
• Gapless playback between tracks of an album. If the software manages to play through short signal losses, why not pre buffer the next track as well to offer continuous playback?

Software download Links:

Android market QR code for Audiogalaxy

Available on the App Store

via First Look: Mobile Colloquy – The Unofficial Apple Weblog (TUAW).

Last.fm iPhone Demo from Toby on Vimeo.

Abstract

This memo documents the fundamental truths of networking for the Internet community. This memo does not specify a standard, except in the sense that all standards must implicitly follow the fundamental truths.

…read the whole RFC1925

After a couple of hours of testing and writing a custom update script that replicates our DNS data to the secondary and tertiary nameservers via mysqldump and scp I think we are ready to migrate all our domains to this setup.
Now the only thing left is an answer to my eMail to Quickstep and then we’ll begin moving.

I really hope with those measures all the domains will be saver and suffer from less timeouts. Many thanks to Hirschy for his excellent work

There is a good HOWTO at Howtoforge that explains the installation of MyDNS and the easy-to-use webfrontend namend MyDNSConfig.

A few month ago I started to look at OpenVPN which has a very good GUI for the Mac called “Tunnelblick“. After I managed to set it up on my server I thought why not share my home directory via the VPN tunnel and mount it on my Desktop. It should be fairly usable, providet I’ve got sufficient net connection on my end, since my server has a 100MBit internet line. So I set up Samba and let it listen only on the VPN interface.
The following is a quick step-by-step how-to on setting up such a setup

Install OpenVPN on your server
Donwload the latest source from http://openvpn.net/download.html
Unpack it and run the usual commands:
./configure
make
make install
Then do some testing:
make check
If it all works fine, you’re good to go.
The other possibility is of course to install it from a package your distribution provides you, in my case this is handled by apt (aptitude install openvpn) which has the advantage of setting up init scripts so the VPN is startet at system boot and taking care that the whole environment on the server is suitable.

Configure OpenVPN on your server
We’re gonna work with a pre shared static key here because it is easier to set up and provides enough security for home use.
My config file on the server side looks as simple as following (/etc/openvpn/home.conf):
dev tun
ifconfig 10.8.0.1 10.8.0.2
secret static.key
comp-lzo
keepalive 10 60
ping-timer-rem
persist-tun
persist-key
This tells OpenVPN to start a new VPN on the “tun” device with the IP of 10.8.0.1 using the key named “static.key”. The rest are some tweaking commands which should be pretty self explanatory.

Now we only need the static key.
We can construct one by putting in the following command:
openvpn --genkey --secret static.key
The static key file is formated in ASCII and should be kept very private. Send one copy to the computer you would like to connect to your server and keep the other copy besides your config file on your server.

Install and set-up Samba
Next you need to install Samba. I again took the Debian way via “aptitude install samba”. Then I tweaked the standard setup to export the user’s home directories and listen only on the VPN interface and not the normal one.
interfaces = lo, 10.0.0.0/8
bind interfaces only = Yes

[homes]
comment = Home Directories
browseable = yes
writable = yes
create mask = 0775
directory mask = 0775

The rest of the smb.conf file can be pretty much left alone.

Start openvpn and samba
Provided you installed it via your packaging system or set up the init scripts yourself you can now start the two programs by typing in “/etc/init.d/openvpn start” and “/etc/init.d/samba start” (or wherever your distri keeps it’s init scripts).
If the two started up ok, you’re done on the server side.
Time to move on to the client.

Install Tunnelblick
Download it from www.tunnelblick.net, mount the Disk Image and double click on “Tunnelblick-Complete.mpkg” which installs all the necessary drivers and software packages. Now you should have a Tunnelblick icon in your Applications folder.
When starting the program for the first time, it will well you that there is no configuration file present and will offer you a sample configuration.
Simply replace the sample configuration with the following:
remote IP_OR_DOMAIN_OF_YOUR_SERVER
dev tun
ifconfig 10.8.0.2 10.8.0.1
secret static.key
comp-lzo
keepalive 10 60
ping-timer-rem
persist-tun
persist-key
As the last step you have to put the file “static.key” that you obtained from your server earlier in ~/Library/openvpn (this is where your config resides as well).
This should be it. Click on the Tunnel entrance symbol to the left of your Spotlight icon and choose your config, after a short moment the connection will be present.

The last thing to do is to mount your home directory.
Press CMD+K in the Finder (or go to “Go -> Connect to Server” in the Menu) and type in the following:
smb://user@10.8.0.1/user
substituting “user” with your username on the server. After that a new icon should appear on your desktop containing all the files you have in your home directory on your server

apple, debian, llinux, mac, openvpn, vpn

As a result all of the ~20 domains that I run on this server will be migrated to our own DNS servers.
HowtoForge has a good tutorial on MyDNS which we will try and most probably use.

Sorry again for the outage and I hope with taking the matter in our own hands, such things won’t happen again in the future.