# Openssl certification

**URL:** <https://discourse.nodered.org/t/openssl-certification/31083>\
**Category:** General\
**Created:** [3 August 2020 14:14 UTC](https://discourse.nodered.org/t/openssl-certification/31083 "2020-08-03T14:14:49Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Thewaver](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/thewaver/32/11917_2.png) [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Post date:** [3 August 2020 14:14 UTC](https://discourse.nodered.org/t/openssl-certification/31083/1 "2020-08-03T14:14:49Z")

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Hi, I have set up an openSSL certificate on my node red server by following the very excellent 'Securing Node-Red with SSL and Username Authentication instructions' from Steve (don't know his surname). I tried to move the microSD from my Pi4 to my Pi zero but the Alexa node wont work. Its says connecting all the time. So, my question is can I set up a new second node red server on the Pi zero with a second openSSL certificate so they both have different login and password authentication. Cheers...

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [3 August 2020 16:20 UTC](https://discourse.nodered.org/t/openssl-certification/31083/2 "2020-08-03T16:20:18Z")

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You can't just move the SD card from a 4 to a 0 as the processor chip is a different architecture.  
You need to re-run the install script once on the zero - hopefully it will downgrade the version of node.js to one compatible with the arm6 chip, and then restart and it should be ok... but it's not a normal path we test often.

(As it happens you can go the other way... but...)

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**Author:** ![Thewaver](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/thewaver/32/11917_2.png) [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Post date:** [4 August 2020 11:17 UTC](https://discourse.nodered.org/t/openssl-certification/31083/3 "2020-08-04T11:17:08Z")

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Hi, thank for your reply, do you mean run this script:

```auto
bash <(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered)

```

Cheers Don...

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [4 August 2020 12:38 UTC](https://discourse.nodered.org/t/openssl-certification/31083/4 "2020-08-04T12:38:05Z")

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Yes, I am sure he does.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [3 October 2020 12:38 UTC](https://discourse.nodered.org/t/openssl-certification/31083/5 "2020-10-03T12:38:15Z")

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Closed on 3 October 2020 12:38 UTC

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