Tag Archives: it

Pocket NC Raspberry Pi Wifi Bridge

The primary UI the Pocket NC presents is a web interface accessible over a virtual USB based ethernet port.  I wanted to be able to run mine not immediately near an ethernet jack, but also didn’t want to have to tote a laptop over every time to check on it.  I had plenty of raspberry pi’s lying around, so rigged one up as a wifi bridge.

First, I found a random case to print from thingiverse, the TurboPi:


Then I gave it a fixed IP address on my wifi network and set up IP forwarding with NAT.

iptables -A POSTROUTING -o eth1 -j MASQUERADE

Then, I saved that config:

iptables-save > /etc/iptables.ipv4.nat

And restored them in /etc/rc.local

iptables-restore < /etc/iptables.ipv4.nat

Finally, I enabled forwarding in /etc/sysctl.conf


Finally, I added a route on my desktop with the raspberry pi’s address as the gateway.  Now I can transparently access the PocketNC from anywhere!

Raspberry Pi forwarding network traffic to the Pocket NC

My First Edit to a Chromium Extension

Feedly just today came out with a Pro version with support for https support! Unfortunately, the one extension I rely on, FeedlyBackgroundTab hard-codes the URL to http://cloud.feedly.com. The required code change is trivial, just updating the list of allowed websites in the manifest file. To install it though, I wasn’t sure what to expect. First I tried just editing the file directly in my “~/.config/chromium” directory. That ended up not being successful. But then I noticed the little “Developer Mode” checkbox in the Chrome extensions page. Lo and behold, it can load unpacked extensions, or pack them for you!

Now if only the Omnibar would learn some awesomeness from the Awesome bar and I would all be set.