I’m quite new to cryptocurrencies, but understand the high level theory, and have never had any need to buy any of the now famous Bitcoins for any reason, however recently I have tried to purchase some Monero (XMR) but wanted to pay in GBP. This has proved more challenging than I first thought it would be! Quite a few exchanges will convert Bitcoin to to XMR, but I couldn’t really find any that would take a direct payment in GBP and convert to XMR, especially at a reasonable rate. So I had to buy Bitcoin in GBP, then convert to XMR. Here is the route I took: More »

After my last Erisin ES9746A Android head unit died whilst performing a hardware mod to improve the rather poor sound quality I hung on and waited for one of the new Intel Sofia 4 core based units – the first to release with an OEM E46 look was Joying, with their JY-BL12N2 model.

I have collected some useful links for this and other Intel based units below, mostly from XDA.  Note these are not MTCB/MTCD units, despite the threads residing under thoes sections!

 

E46 JY-BL121N2 General Queries – also includes info on the reverse / gearbox switch

Large general thread on Intel units – New Joying Android 5.1.1 2GB Units available very soon !

Steering wheel key customization – V3 (NO KILL) – stop processes killing on hibernate and key reassigning

General Roll Up / tips and tricks thread

Joying Feb 22nd 2017 Update – info on the latest update

 

Overall I am happy with this unit – it is lightening fast compared to my old dual core MTCB, the screen is much higher resolution and importantly the on board DSP is way better than the previous MTCB!  I have rooted, installed Viper4Android to tweak the sound further, and plan to add a reverse cam and DAB USB receiver next.

Working with Configuration

Show previous configs :

show configuration | compare rollback ?

Compare current to previous version (in edit):

show | compare

Compare two previous versions:

show system rollback 17 compare 16

Show uncommitted changes:

show | compare

Perform rollback:

rollback <number | resuce>

Move a policy:

root@siteA# insert security policies from-zone <zone> to-zone <zone> policy <policy-name> before policy <policy-name>
root@siteA# insert security policies from-zone <zone> to-zone <zone> policy <policy-name> after policy <policy-name>

I was trying to use a website in Chrome which used WebGL through an RDP session to a Virtual Server 2016 (VMware) but was hitting an error about WebGL disabled.

There are various posts on the Google product forums but I couldn’t find the definitive fix there, although they pointed me in the right direction, in Chrome:

chrome://settings

  • Make sure use Hardware Acceleration is enabled

chrome://flags

  • Override software rendering list Mac, Windows, Linux, Chrome OS, Android
    Overrides the built-in software rendering list and enables GPU-acceleration on unsupported system configurations.  – set to ENABLED
  • Accelerated 2D canvas Mac, Windows, Linux, Chrome OS, Android
    Enables the use of the GPU to perform 2d canvas rendering instead of using software rendering.  – set to ENABLED
  • WebGL Draft Extensions Mac, Windows, Linux, Chrome OS, Android
    Enabling this option allows web applications to access the WebGL Extensions that are still in draft status.
  • WebGL Draft Extensions Mac, Windows, Linux, Chrome OS, Android
    Enabling this option allows web applications to access the WebGL Extensions that are still in draft status.  – set to ENABLED (if required)
  • WebGL 2.0 Mac, Windows, Linux, Chrome OS, Android
    Allow web applications to access WebGL 2.0.  – set to ENABLED

Restart Chrome and…bingo – it seems nobody enabled the top option, to override the GPU blacklist

I now feel like “cloud” (/i.e. somebody else’s computer/infrastructure) has matured considerably with many companies making the transition to move core infrastructure to a cloud based operational model, particularly if the main product of the company is a web application which would previously have been hosted on traditional infrastructure.

This traditional infrastructure (usually some from of virtualisation (VMware for me), storage and networking) has been my bread and butter core skillset for many years. I have translated many business requirements into technical requirements, and then installed and configured them. Its what I know best and have served me well for many years, but particularly in the last 12 months there is a very clear decline in demand, and a very sharp rise in revenue spend with cloud based technologies.

Obviously not all infrastructure will fit into the cloud as it stands now, and maybe some never will, but there is a clear pattern here which cannot be ignored, and as ever in IT it is important to keep up with trends.

So now I am open to the cloud adoption it will become easier and more efficient to begin learning. So, where to start and why? I chose to master the AWS offerings – not all of them, I don’t think anyone has done that, but at least the core offerings – compute, storage, networking, automation.

Why AWS? The are the clear market leaders and have held this position for many years and although Microsoft is the nearest contender with Google trailing, they are a long way behind. Sure they may start to eat into AWS market share in a few years, but I don’t think they will make a serious dent. Now the model is well proven, it is time to start learning!

So where to start?

I have decided to take the exam AWS Certified Solutions Architect – Associate which gives a good overview of the core service offerings and how they interoperate with each other, as well as benefitting from obtaining an industry certification.

For study aid I am watching the well recommended video by A Cloud Guru which is ideal for beginners to AWS right from the start and of course lots of hands on in the form of AWS labs.

I needed to use iLO to remotely administer an HP DL360 G5, but the combination of modern Java and Windows 10 equaled no joy. A quick update from the top of my head:

  • Update iLO to 2.25 via SSH (my browser(s) wouldnt upload the entire file.  Instructions here, download iLO2 2.25 here.  Be patient, this takes ~10 minutes
  • Set Java security.  Add site to exception site list under Security tab (I added the URLs in the format https://x.x.x.x/*, https://x.x.x.x:443/*)
  • Under Advanced tab of Java disable “Use TLS 1.2” and “Use TLS 1.1”
  • Under Advanced tab Check TLS Certificate Revocation Checks – Do not check (unsure if needed)
  • Use Internet Explorer (IE 11 in Windows 10 worked)
  • Login to iLO, Remote Console tab, Remote Console (Access the system KVM from a Java applet)
  • The first time the pop up loads it errors with unable to load class something something something.  Close this window
  • Back in the main iLO window click back to System Status tab, then back to Remote Console tab and try again – Bingo!

It has been possible to use Vodafone wireleless on the London underground for some time and according to Vodafone’s info page your phone should connect automatically.  Mine didn’t and neither do many peoples on Vodafone’s support forum.

I hadn’t had the need to use WiFi on the underground as I only traveled very sporadically for work into London, but now I’m doing it daily I thought it would be useful. Well it would have been had it just connected automatically – it didn’t.  Vodafone’s suggestion for if it doesn’t automatically connect is to use the “Virgin Media” WiFi, which although it works it takes you to a captive portal page and requires you to sign in with your Vodafone user name and password.  That’s a bit rubbish as when passing on the tube you ate only stationary for about 20 seconds.
More »

I recently had a to take my MCSE renewal exam (70-980) and thought I’d give the Pearson Vue online proctored exam version a try rather than driving an hour each way to my nearest choice of low rate testing centres (think cheap nasty low cost slow white box computers, sometimes cramped cubicles, parking issues, date/time availability issues – yes I’ve had bad experiences of all of the above!). As an IT consultant time is nearly always in short supply and very limited testing centres offer testing on a Saturday. My reasons were numerous for trying the online delivery of the test:

  • Can book on the day for a start time up to 9PM
  • No travel time and cost
  • Luxury of taking it in my home study, set to a comfortable temperature and no other disruptions
  • Decent powered desktop computer
  • More »

    Using a self signed cert, if the CRL (Certificate revocation location) is not available the client cannot connect. This can be easily fixed with a registry key to disable checking of the certificate on the client:

    The fix – on the client, create a new registry key (DWORD) with value of 1:

    HKLM > SYSTEM > CurrentControlSet > Services > SstpSvc > Parameters >

    Name: NoCertRevocationCheck
    Type: DWORD(32 Bit)
    Value: 1

    Error 0x80092013: The revocation function was unable to check revocation because the revocation server was offline

    I Had some over the weekend – the offside front piston had started sticking in the week so I replaced the seals and cleaned the surface corrosion off the piston.  I had just finished bleeding the brakes when I stamped on the pedal to test for firmness and the rear line split near the ‘U’ bends before the steel pipe joins the flexible pipe.  Luckily it happened on the drive and not down a hill.  Thinking back I remember an advisory on the last MOT but it looks like they’ve corroded much quicker than expected.  So – if your E46 rear brake lines are corroded I have put together a quick guide.  I checked the opposite side and sure enough it was also starting to go – so if one side has gone, the other won’t be far off – replace both.

    Options for replacement:

    1. The lines can be replaced by new ones from BMW.  Both join under the drivers footwell somewhere.
    2. Make your own lines from copper / copper nickel and join onto the original steel pipes with unions.

    I went for option 2 – mainly because I could get all the parts and BMW didn’t have stock on the day I needed them.  I’m not sure what other floor panels need to be removed to gain access to the unions as I put my joins just before the pipes turn up to go above the fuel tank. More »