# Your flow credentials file is encrypted using a system-generated key

**URL:** <https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382>\
**Category:** General\
**Created:** [25 November 2019 10:09 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382 "2019-11-25T10:09:04Z")\
**Posts on this page:** 19\
**Page:** 3

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**Author:** ![Paul-Reed](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/paul-reed/32/66906_2.png) [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Post date:** [25 November 2019 14:34 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/43 "2019-11-25T14:34:05Z")

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It might be worth trying a reboot, just in case you already have node-RED running, in the background  
`sudo reboot`

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 14:36 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/45 "2019-11-25T14:36:58Z")

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oke i did it and its still the same problem

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [25 November 2019 14:44 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/46 "2019-11-25T14:44:27Z")

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Port 10502 is not a standard port used by the core of node-red, so must be coming from one of the nodes you have installed and using in your flow.

What can you tell us about your flow? What nodes are you using? In particular, any that may be trying to listen for incoming connections from other devices.

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 14:47 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/47 "2019-11-25T14:47:19Z")

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modbus server on port 10502  
led strip with some buttons and functions.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/e/e7ec2d0c412158ac79edc525b9e302196cd6b2a6.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/9/9b7aa4935f61c1cd01f61ae952d5ca7246ffd204.png)

lucky i have some pictures. But i edit a numeric and some more buttons not more

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 14:52 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/48 "2019-11-25T14:52:56Z")

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But i say because i change something in EXPORT or IMPORT. than couldn't go back on the node-red editor

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [25 November 2019 14:57 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/49 "2019-11-25T14:57:10Z")

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> But i say because i change something in EXPORT or IMPORT. than couldn't go back on the node-red editor

I don't understand what you mean by that. What did you change?

The fact the error says port 10502 is already in use, and you have a modbus server node trying to use 10502 should be the hint you need here.

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 15:00 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/50 "2019-11-25T15:00:08Z")

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do i need to change port 10502 to 10503 and than i need to work ?

answer on you question i changed the flow.

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [25 November 2019 15:03 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/51 "2019-11-25T15:03:06Z")

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You need to find out what is already using port 10502.

In a new terminal window, can you run:

```auto
netstat -ltnp | grep -w ':10502' 

```

And share the output?

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 15:08 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/52 "2019-11-25T15:08:03Z")

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> [@knolleary](#):
>
> netstat -ltnp | grep -w ':10502'

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/5/545e3ea9f8b83bae162d803f2e8f57733b8f3279.png)

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [25 November 2019 15:10 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/53 "2019-11-25T15:10:16Z")

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please rerun with `sudo netstat -ltnp | grep -w ':10502'` and you only need to share the output if there's something to show....

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<div class="post-metadata">

**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 15:17 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/54 "2019-11-25T15:17:45Z")

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nothing happen when i do that code.

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**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [25 November 2019 15:39 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/55 "2019-11-25T15:39:11Z")

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I will ask questions tomorrow. Now I am gone for today. thanks anyway to help.  
😀☹

But if you know something just sended it maybe it will work.

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**Author:** ![wb666greene](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/wb666greene/32/6534_2.png) [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Post date:** [25 November 2019 19:34 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/56 "2019-11-25T19:34:19Z")

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I've never seen the need to use other than the system generated key.

If I move to a different machine I generally want different passwords anyways.

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**Author:** ![Paul-Reed](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/paul-reed/32/66906_2.png) [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Post date:** [25 November 2019 19:48 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/57 "2019-11-25T19:48:22Z")

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> [@wb666greene](#):
>
> If I move to a different machine I generally want different passwords anyways

Yes, but if you move your credential file to a different node-RED installation, you would need to enter all the passwords, keys etc again in the new installation.

I've just successfully [moved my node-RED installation to a new server](https://discourse.nodered.org/t/moving-node-red-failed-to-decrypt-credentials/17830) and kept all my logins intact. If I had not set my own key in settings, it would have taken me hours to recover & restore my passwords, keys etc, for Darsky, Pushbullet, Pushover, MQTT, Ring, Twitter, gBridge... etc, etc.

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<div class="post-metadata">

**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [26 November 2019 08:43 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/58 "2019-11-26T08:43:45Z")

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I'm back now i can check my port.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/4/4eda1e8388f59b7cfe68604c0a4629c8ada09d97.png)

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<div class="post-metadata">

**Author:** ![bakman2](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bakman2/32/6207_2.png) [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Post date:** [26 November 2019 09:19 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/59 "2019-11-26T09:19:46Z")

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Read the error and try again.

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<div class="post-metadata">

**Author:** ![robbe](https://avatars.discourse-cdn.com/v4/letter/r/df788c/32.png) [@robbe](https://discourse.nodered.org/u/robbe)\
**Post date:** [26 November 2019 09:25 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/60 "2019-11-26T09:25:44Z")

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if i do it without 0.0.0.0 then it say command not found

maybe its omething with that.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/d/d8690e9fdcd5c66da73780becaeeaea20edd3237.png)

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<div class="post-metadata">

**Author:** ![parisa](https://avatars.discourse-cdn.com/v4/letter/p/91b2a8/32.png) [@parisa](https://discourse.nodered.org/u/parisa)\
**Post date:** [28 July 2021 05:36 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/61 "2021-07-28T05:36:44Z")

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Hi dear  
if you can not open and start none-red, then problem is in your flow... you can delete the flow in command line...go to root file and delete flow  
after it, you can start node-red

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<div class="post-metadata">

**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:** [28 July 2021 07:08 UTC](https://discourse.nodered.org/t/your-flow-credentials-file-is-encrypted-using-a-system-generated-key/18382/62 "2021-07-28T07:08:58Z")

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Closed on 28 July 2021 07:08 UTC



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