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  1. alastairstevenson

    Hikvision NVR creates "ngtest" backdoor user on managed camera's

    It's normal with a new unused Hikvision camera, in 'inactive' mode, to be 'activated' when connecting to an NVR PoE port that's in plug&play mode to be activated by the password that's set for this purpose in the NVR configuration. But that's usually applied against the admin user. If you've...
  2. alastairstevenson

    Locating an NVR software manufacturer

    Have you done a search based on the model number, or firmware version?
  3. alastairstevenson

    Trouble Accessing Cams via Web Interface

    Unless the default gateway isn't correctly set.
  4. alastairstevenson

    Hikvision NVR creates "ngtest" backdoor user on managed camera's

    Unless it's totally changed in the new firmware, virtual host usually just provides a NATted access to the camera IP address without using any logon credentials. It's then up to the user to decide how to log in.
  5. alastairstevenson

    Hikvision NVR creates "ngtest" backdoor user on managed camera's

    Fascinating! It sounds like a programmer has carelessly left in some test code in the firmware. I can see some security researchers exploring this to see if it can be exploited.
  6. alastairstevenson

    Hikvision ds-7616nxi-i2/16p/s factory reset?

    I'm guessing you replaced the PSU. Loads available on Aliexpress - but quite pricey. They can actually be sourced at lower cost here in the UK ... https://hunterfield.co.uk/products/52v-power-supplies/
  7. alastairstevenson

    Hikvision ds-7616nxi-i2/16p/s factory reset?

    Often, but not always, a reset can be effected via the serial console. What's possible varies with the model, firmware, manufacture date etc. The Hikvision tftp updater can't be used because it has a filesize limit of 32MB. The Scott Lamb Python2 clone gets round this...
  8. alastairstevenson

    Bricked my NVR by updating from very old firmware straight to latest one.

    That looks perfect - well done! I generally use the web interface as the most common reason I have for reviewing playback is to see events on an NVR that is configured for event-only recording. I have 2 NVRs connected to the same cameras, the other one is configured for continuous recording...
  9. alastairstevenson

    Confession: Crossover Cable

    No big deal - TX-, TX+ That will not cause damage either.
  10. alastairstevenson

    DS-2CD2135 firmware upgrade

    Yes, I'd guess it has the 'Dieter & Fiona' hacked to English firmware that if upgraded would stop the device working.
  11. alastairstevenson

    Xmeye NVR DVR Board

    They sell loads of different models - without knowing which one, I doubt there is much help that can be offered to you. What details can you provide? Including the camera types and specs.
  12. alastairstevenson

    "Time out" Activation camera

    Yes, they are. Dumb question - but presumably all you attempted was to provide a strong password, applied in SADP?
  13. alastairstevenson

    Dahua CCTV system "failed to find host network"

    What do the Release Notes say is added or fixed?
  14. alastairstevenson

    Confession: Crossover Cable

    As @tigerwillow1 commented that should not cause damage. Yes, there must be more to it ...
  15. alastairstevenson

    Amcrest Smart Home (ASH), No http web user Interface, Boooo!

    Because they have designed it to be simply operated with their proprietary Android or IOS app. This is never done from scratch, lots of ready-made solutions that just need a little customisation to work for the specific device.
  16. alastairstevenson

    Bricked my NVR by updating from very old firmware straight to latest one.

    That's an interesting question. Looking at the Prolific specs, it doesn't mention the signal levels, looking around elsewhere suggests the TX is 3.3v which matches the NVR requirements. There is a 5v VCC available on the device, but that's not needed and should not be connected.
  17. alastairstevenson

    Bricked my NVR by updating from very old firmware straight to latest one.

    From what I recall (it's ages since I bought any of these) the TA version is required if the PC is running Windows 10. A driver issue. You'll notice that compatibility isn't mentioned on the non-TA version. Also - it's easy enough to insert the connector wires into the -TA version adaptor...
  18. alastairstevenson

    Bricked my NVR by updating from very old firmware straight to latest one.

    That's the NVR probe looking for 'Arecontvision' devices that it puts out on normal bootup. It uses a similar handshake to the Hikvision tftp updater - so the tftp updater comments on it. It's not an error, but it does indicate that the tftp updater handshake has not taken place and the NVR has...
  19. alastairstevenson

    Vanderbilt NVR without password.

    After you've dumped the existing flash contents as a backup just in case ...
  20. alastairstevenson

    Vanderbilt NVR without password.

    Wow! Well done, a great result. Thanks for sharing.
  21. alastairstevenson

    Vanderbilt NVR without password.

    You don't need Linux to pull the copy of the mtdblock1 - just the serial TTL to USB convertor, a serial terminal program (such as PuTTY) and the tftp server. So if you do manage the dump, and don't have Linux for the actual extract, you could attach the file here and I can check it out for you...
  22. alastairstevenson

    Vanderbilt NVR without password.

    That depends on whether you are feeling adventurous! It's quite an old, low-level NVR. A couple of ways to deal with the password - Apply the Hikvision firmware with Hikvision's tftp updater. If it takes - the device will be reset. or Extract a flash partition and decode the contents, like so...
  23. alastairstevenson

    Empire Tech Camera Factory resetting itself

    Is that inbound access (by port forwarding or UPnP) or outbound only, such as for an NTP server?
  24. alastairstevenson

    PROBLEM ADD REMOTE IPCAMERA TO NVR

    What ports do you have open? Port 8000 is the default command&control port, 554 for RTSP, 80 for web GUI etc Worth noting though that this will expose the NVR to the entire internet, with a chance it, and your network, will be hacked and compromised. Definitely not advised.
  25. alastairstevenson

    Help resetting nvr with limited information

    What version of firmware did SADP show was on the NVR? Some of the old Hikvision devices also used 123456789abc as a default password - prior to them having the active/inactive method after a reset to defaults.
  26. alastairstevenson

    Need a outside camera that will not fail.

    You described the problem as : Then you say : It's well known - as highlighted by @TonyR - that WiFi connectivity for CCTV cameras can be inconsistent and troublesome. It was a helpful post. Suggestion : To confirm it's not the WiFi - it might be interesting to take down one of the cameras...
  27. alastairstevenson

    Annke Firmware to Hikvision Firmware: HOW TO

    'tftp timeout' means the camera can't communicate with the tftp server. What tftp server are you using? What IP address is the PC using that the tftp server is running on? (should be 192.168.1.128) Is the PC firewall (presumably Windows built-in) allowing inbound access to the tftp server...
  28. alastairstevenson

    Camera Recommendations

    As did I. 24 hours isn't that long to wait for a reply - we all have other activities we need to pursue.
  29. alastairstevenson

    Camera Recommendations

    Not visible - did you delete it?
  30. alastairstevenson

    Mystery DVR video file... need a player

    If it's suitable for attaching here (it's a public forum) maybe some members could figure it out. The filename isn't much to go on.
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