I’m not sure about Raspbian, but the dig application is not installed on Minibian by default. To install it (or on any Debian based distribution), you have to install the dnsutils package, which contains it:
sudo apt-get install dnsutils
Category: Software
NoIP Dynamic Update Client on RaspberryPi (or Ubuntu)
Personally I like to use NoIP’s dynamic DNS services. This tutorial explains how to install the NoIP DUC on a RaspberryPi running a Raspbian based distribution, but it will work on Ubuntu or any other Debian based distribution as well. You should execute all of the commands below as superuser. As not to have to put sudo in front of all of them, it’s best to log in as root or switch to root with sudo su.
Step 1: Install prerequisites
You will need some software to install and run the DUC software. Execute the following commands:
apt-get update
apt-get install build-essential python-setuptools
easy_install killproc
Step 2: Download and install the DUC software
Next you will have to download and install the DUC software itself. The software has to be built from source code, which is why we installed build-essential. The following commands will download and install the software:
cd /usr/local/src/
rm -r noip-*
wget http://www.no-ip.com/client/linux/noip-duc-linux.tar.gz
tar xf noip-duc-linux.tar.gz
rm noip-duc-linux.tar.gz
cd noip-*
make install
The commands above will first remove any previous source downloads for NoIP you might have had. Next it downloads the sources for the software and installs it. After installing it should immediately start the configuration wizard, which you can always restart using the command “/usr/local/bin/noip2 -C“. The configuration wizard will ask for your NoIP account details, as well as the host you want to be using. This should be mostly straight-forward. When it asks if you want to run anything on an update, you should probably just enter “No”.
Step 3: Running the DUC software on startup
By default, the DUC software will not start when you reboot your system. This is where killproc comes in, which we installed earlier. What we have to do now is set up an init script. We’re going to be using a simple script, as is described in the software’s readme file, with a slight alteration to make it work on our distribution. I have the script uploaded on my webserver, so you can just download it to your drive. Execute the following commands to install it and set it up:
cd /etc/init.d
wget http://ibeblog.com/files/noip2
chmod +x noip2
update-rc.d noip2 defaults
Step 4: Reboot
You’re all done now, so you can reboot the system now and when it boots up, the NoIP DUC software should be running.
Sources
IntelliJ IDEA 14.1 HiDPI issues
I’m a user and big fan of JetBrains’ IntelliJ IDEA IDE. Having tried and used several Java IDEs in the past, I personally think it’s the best out there. On top of that, every major update bring a couple of new amazing features.
Yesterday the 14.1 update of the IDE was released. As usual I rushed to download and install the new version, after a quick glance of the release notes. But as a first, I ran into a major issue.
I’m usually use my desktop or my laptop for programming, but a while ago I got myself a Microsoft Surface Pro 3, to carry around more easily. I also use this for programming. The Surface Pro 3 has a very high-resolution display, which makes whatever is displayed look nice and crisp. But if you use the native resolution, everything will also be very tiny. Microsoft has solved this issue by having Windows do DPI scaling of applications. This essentially simply scales them up to make everything readable to the user. Some applications support this and those that do provide a very nice upscaled crisp interface.
Up until now, IntelliJ has not supported high DPI displays, and as a result, the native OS would just scale it up, making text look slightly blurry, as well as other elements in the UI. To resolve this JetBrains has worked on adding support for these displays on all platforms into their IDE. This is where it got messy.
After installing the new version, and running it, I quickly noticed that there was something wrong. My code looked very crisp for sure, but it was incredibly tiny. Also icons on the toolbar had been shrunk down to a small size. To find the answer, I had to dig through some of JetBrains’ bugtracker issues and found a fix for the problem.
The problem is that (for some reason) the IDE does not detect that I’m running a high-DPI display. So solve this, you have to force it into the HiDPI mode. You can do this by editing the vmoptions files for the IDE, which are located in the same folder that holds the IDE’s binary files. For example “C:\Program Files (x86)\JetBrains\IntelliJ IDEA 14.1\bin” on Windows 8.1 x64. Add the argument -Dhidpi=true to the end file. Be warned though, there are vmoptions files for both 32-bit and 64-bit, make sure you change the right one, or change both to be sure.
It’s clear that there’s still a few issues for JetBrains to work out, even in HiDPI mode, the text in the tip of the day window is pretty small, but they are well on their way towards properly supporting these displays.