Chromecast on non-RFC1918

Submitted by cliff on Fri, 17/08/2018 - 13:35

I ran into a problem with casting from Chrome to a Chromecast, android phones would work just fine, but Chrome would refuse to cast. The cast icon was available but it would not find a chromecast to cast to. After some research it seems that Chrome stopped working for quite some people after Chrome 63. 

Apparently there has been a new chrome flag that disables casting to non-RFC1918 IP addresses. To enable the old behaviour go to:


And enable it. After a Chrome restart your problems are fixed.

unSHC arm version

Submitted by cliff on Thu, 09/08/2018 - 16:48

After doing some security research for some friends, I encountered the use of SHC for some shell scripts. As the platform in question is ARM and there wasn't a functioning unSHC for arm, I decided to start porting unSHC to ARM. 

The sort of working beta version can be found on github here.

Upgrading Sony Xperia Z Tablet (SGP311) to Android 7.1

Submitted by cliff on Mon, 09/04/2018 - 12:16

Using the Lineage OS Install guide I had no problems installing it, but make sure you have enough battery. I started out at 10% the first time and this was not enough. Make sure it is at a minimum of 50%

LineageOS Download for SGP311 -

LineageOS Install Guide for SGP311 -

VMWare ESXi 6.5 on HP DL380G8: sfcbd crashing a lot

Submitted by cliff on Fri, 06/04/2018 - 16:50

Running VMWare ESXi 6.5U1 on a HP DL380 G8 with the HPE Custom Image ? And getting the error message: An application (/sbin/sfcbd) running on esxi host has crashed ?

Disable the vmw_hpe-smx-provider wbem provider. Get into the ESXi CLI and do the following:

esxcli system wbem provider set -e false -n vmw_hpe-smx-provider

Wanhao Duplicator i3 Plus - Cura Settings

Submitted by cliff on Thu, 29/03/2018 - 15:10

UPDATE January 7th 2020: Recent Cura 4.x has a builtin template for the wanhao duplicator i3 plus which works fine for me.

I recently acquired a Wanhao Duplicator i3 Plus 3D printer. To use it with Ultimaker's Cura the following settings have to be entered in the printer settings:

- Printer > Add > Other > Prusa i3

- Machine Settings - Printer

Update/Reset Gopro Hero 3 WIFI Settings

Submitted by cliff on Mon, 26/03/2018 - 10:08

My gopro hero 3 had a password set I couldn't remember. It seems changing it isn't that straightforward, most guides on the internet redirect you to the gopro site, where you have to enter your serial number to obtain an file, which contains 2 textfiles. Here is a guide to do it without going trough their site.

Get an empty microSD card (or format it) and add the following 2 files to the root directory of the microSD card. Change WIFI_SSID to your own SSID, and change WIFI_PASSWORD to the password you want to use.


Sniffing traffic punted to CPU on Cisco 6500

Submitted by cliff on Wed, 21/03/2018 - 10:57

Sometimes your Cisco 6500 seems to having a hard time with high CPU. Most cases are pretty obvious, like rancid or librenms runs, arp or dhcpd storms. But sometimes it is not that obvious and you want to know which traffic flows to your CPU. Time to dump the packets to the CPU. The following has been retrieved from