Maintaining home network access from the outside with a network-controllable power plug, OpenWrt/LEDE and a 4G LTE stick

January 10, 2017

Internet routers are supposed to operate in a stable fashion. Except they don’t (FritzBox *cough*) – especially when you’re away from home and need access to your home resources. Having to call someone related to go and reset the thing tends to get awkward. If you encounter this often enough, you begin looking for a remote reset solution. Continue Reading »

python-netsnmpagent 0.5.3 released

August 29, 2016

python-netsnmpagent version 0.5.3 has just been released. Continue Reading »

Whoever designed Docker and containers clearly wasn’t responsible for InfoSec – a rant

May 12, 2016

Not just recently I’ve been trying to get a grasp of all the containerization hype and try to identify possible effects on the ways I see to do certain things. I’m reluctant to use the word “operations” here because I’m not really much of an “operations guy” in the sense of actually having ongoing responsibility for a significant number of machines, doing monitoring, getting woken up by a pager etc. I do however have enough administration experience on a small scale to be able to tell which ideas could work and which ideas clearly won’t, at least in the near time. I’m not going to draw the dividing line between “ops” and “devs” here once again, that topic has been bashed about enough for a long time. Continue Reading »

Changing Dell Wireless 5809e / Sierra Wireless EM7305 USB composition (MBIM, QMI, AT interface, NMEA)

April 12, 2016

Here’s a small update to my post from last year on Dell Wireless 5809e support in Linux – a followup. Continue Reading »

Using your Raspberry Pi Zero’s USB wifi adapter as both Wifi client and access point

February 28, 2016

The Raspberry Pi Zero captivates with its small dimensions. This comes at a cost, however, with only one micro USB port available for peripherals of any kind. In this scenario you’ll probably think twice about what you connect to that port. “A USB hub” may sound like a natural choice but if you’re like me, you’ll want to carry the gadget around a bit and minimize the number of accessories. Continue Reading »

Market overview of USB Wifi adapters based on Atheros chipsets

February 26, 2016

When looking for Wifi adapters, there are reasons why you would not just go ahead and buy whatever your favorite $DEALER has in stock. If you have some experience with Wifi adapters and drivers, especially under Linux, you’ll know that in general Atheros chips are what you want. They have a long tradition of both feature set and decent drivers: the old MadWifi drivers were the first Wifi drivers to actually support virtual interfaces on Linux (yes, MadWifi ha issues of its own with its binary HAL explaining why it never got merged into the kernel). Continue Reading »

Let systemd automount NTFS partitions to ensure successful booting

February 15, 2016

On my laptop I use a dual-boot setup with a NTFS partition shared between Windows and Linux, containing eg. music. Because the Windows version installed is Windows 10, it could sometimes happen that, in spite of having turned off hybrid shutdown, ntfs-3g would refuse to mount the shared data partition because it was in an unclean state. Continue Reading »

tslib not recognizing ft6236 touchscreen due to missing ABS_PRESSURE capability

February 9, 2016

In my earlier post on Complete rotation support for the Adafruit PiTFT 2.8″ capacitive touchscreen display I described that support for the touchscreen has landed in the mainline kernel in form of the ft6236 driver. I also described that my test program would work correctly now. Continue Reading »

Complete rotation support for the Adafruit PiTFT 2.8″ capacitive touchscreen display

January 29, 2016

In my previous post, I introduced the PiTFT 2.8″ capacitive touchscreen display and showed some test code. If you played around with that, you might have noticed that with the default /boot/config.txt setting of rotate=90 the display is a landscape mode. Continue Reading »

Getting started with the Raspberry Pi 2 and a Adafruit PiTFT 2.8″ capacitive touchscreen display

January 28, 2016

“We live in an age when unnecessary things are our only necessities” (Oscar Wilde, “The Picture of Dorian Gray”)

Like many others, I bought another Raspberry Pi 2 to play around with, together with an
Adafruit 2.8″ PiTFT capacitive touchscreen
(note that Adafruit has various variants of displays that differ only in details such as resistive or capacitive touchscreen and Raspberry Pi 2 compatibility). Naturally one will like to use the display in both landscape and portrait orientations. Continue Reading »

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