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  • December 12, 2014 at 2:29 pm in reply to: [Solved] Unit won’t connect from 4G network #877
    Radu
    Keymaster

    Lars, I found the problem

    Your unit resolves the server DNS as it would be uradmonitor.com instead of data.uradmonitor.com

    The packets are hitting the wrong server.

    I will see what I can do at my end.

    • This reply was modified 10 years, 4 months ago by Radu.
    December 12, 2014 at 2:10 pm in reply to: Networking Issues #874
    Radu
    Keymaster

    So I am correct in assuming that on routers that send it we have a problem, on those that don’t we’re fine.

    December 12, 2014 at 11:45 am in reply to: Networking Issues #872
    Radu
    Keymaster

    @vinz, first I didn’t know what you were talking about 🙂


    @ben    , I agree, but it mostly serves prototyping or DIY. The offer you’ve mentioned is sent by the router, right?

    December 11, 2014 at 8:54 pm in reply to: Networking Issues #867
    Radu
    Keymaster

    I think you’re right Ben. And this makes it strange: to get inconsistent behaviour depending on the network!

    I have a router that I know was causing some problems with uRADMonitor units. I’ll need to find it and run some tests before I can report back.

    The DHCP code was mainly written by me, and in the last revision I added the hostname option (in the form uRADMonitor-). Previously you would only see the MAC, the allocated IP and no hostname. I might have done something wrong so hopefully things will clarify.

    Another option is checking it against the Arduino implementation, but I find that complicated with all the Arduino libs and custom I/O code.

    December 11, 2014 at 8:47 pm in reply to: Client side charts #864
    Radu
    Keymaster

    Sounds great! And nice work

    December 11, 2014 at 8:40 pm in reply to: 12000012 – My uRADMonitor installation #862
    Radu
    Keymaster

    Looks great, Peter! Congrats on the nice installation.

    December 11, 2014 at 8:38 pm in reply to: Networking Issues #860
    Radu
    Keymaster

    The 02…. are locally administered addresses. Nothing special about them just that they are free. To register universal administered addresses I will have to pay some money. I will do that in the future.

    Vinz, are you getting the same issues with DHCP? can you post more details?

    In my local tests, DHCP was fine, so it’s a bit hard for me to replicate this for a fix:

    Attachments:

    1. Screen-Shot-2014-11-30-at-17.21.58.png

    December 11, 2014 at 8:34 pm in reply to: [Solved] Unit won’t connect from 4G network #859
    Radu
    Keymaster

    I’m afraid there were no updates. So the change must have been local. Yes, currently there are several IP used. The one for data is correct: 23.239.13.18.

    Lars, just as a note, I don’t think this is physical, nevertheless if you are unable to find the problem, you can send the unit back anytime to get a replacement.

    December 9, 2014 at 6:27 pm in reply to: Security: invalid data injection #796
    Radu
    Keymaster

    Hello Vinz,

    I think you have covered pretty much everything to secure the problem and even beyond that to detect if a device is behaving suspicious.

    Also @Jeff ‘s suggestion on checking upload interval is important in limiting invalid data.

    Unless anyone has anything else to add, I will propose this as solution, and standardise it in a specs document written for the next firmware release.

    December 9, 2014 at 6:14 pm in reply to: Security: invalid data injection #792
    Radu
    Keymaster

    Indeed patching would automate the production of unique firmware binaries, without compiling the source code every time.

    But there is also the approach presented here: https://www.uradmonitor.com/topic/automated-device-ids/

    The eeprom can also be written without changing the firmware using a separate script, after main firmware is written.

    December 9, 2014 at 5:54 pm in reply to: Android/iOS App #782
    Radu
    Keymaster

    Very good ideas, I find the one with the favourite station particularly useful.

    December 9, 2014 at 5:53 pm in reply to: uRADMonitor Wiki #781
    Radu
    Keymaster

    I’d say yes, it seems a useful thing to have, although my experience with Wiki is limited.

    December 9, 2014 at 5:51 pm in reply to: Client side charts #780
    Radu
    Keymaster

    highcarts.com looks interesting, I will check it out in more detail.


    @vinz    , would you post the link to your implementation here?

    December 9, 2014 at 5:43 pm in reply to: more than one central-server? #779
    Radu
    Keymaster

    I love this idea. Clean and efficient!

    December 9, 2014 at 5:41 pm in reply to: Database optimisations #777
    Radu
    Keymaster

    Yes, this makes sense. Regarding 2) what would be the memory requirements on the linux box?

    • This reply was modified 10 years, 4 months ago by Radu.
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