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 - https://download.lineageos.org/pollux_windy

LineageOS Install Guide for SGP311 - https://wiki.lineageos.org/devices/pollux_windy/install

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 update.zip 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 cisco.com.

Acterna Testpad FST2802 Reflector Client

Submitted by cliff on Tue, 20/03/2018 - 15:23

A few years back we had a Acterna Testpad FST2802 (datasheet) on loan from a vendor to test a big rollout of fiber we did together. As we only had one unit we couldn't use it to test other things then the rollout where the vendor had the other unit. So I decided to write a little software program to act as a software based reflector.

Windows Update Delivery Optimization

Submitted by cliff on Tue, 20/03/2018 - 14:20

While troubleshooting a bandwidth issue for a customer today I noticed a lot of TCP traffic between different hosts of the customer on tcp port 7680. As the customer has multiple locations with diverse bandwidths available this started to hog up quite some bandwidth. After some research I found out that tcp port 7680 is used by Windows 10 to distribute windows updates to other domain clients.