# Edit the Core Lightning CLN RTL config file

**URL:** <https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089>\
**Category:** Bitcoin and Lightning\
**Created:** [August 15, 2022, 11:21pm UTC](https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089 "2022-08-15T23:21:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![btcnym](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@btcnym](https://community.umbrel.com/u/btcnym)\
**Post date:** [August 15, 2022, 11:21pm UTC](https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089/1 "2022-08-15T23:21:52Z")

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I get this error when trying to do it through CLN RTL.

Also, I tried editing RTL-config.json here… umbrel/app-data/core-lightning-rtl/data/rtl via SSH.

BUT I ended up wiping my node!, so don’t do that! Bottom line, I just want to be able to change my alias and also, enable bolt12 offers and I need to edit the config file.

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/getumbrel/original/2X/5/57063537838004f556538a355184a7d354e58d42.png)

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**Author:** ![Werninjo](https://avatars.discourse-cdn.com/v4/letter/w/3e96dc/32.png) [@Werninjo](https://community.umbrel.com/u/Werninjo)\
**Post date:** [November 4, 2022, 12:00pm UTC](https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089/2 "2022-11-04T12:00:57Z")

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Hi, did you already find the path to the config file? Also run into the same problem.

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**Author:** ![idontou](https://avatars.discourse-cdn.com/v4/letter/i/8e8cbc/32.png) [@idontou](https://community.umbrel.com/u/idontou)\
**Post date:** [November 10, 2022, 3:05pm UTC](https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089/4 "2022-11-10T15:05:51Z")

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I’m having this issue too. Have you found a fix?

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**Author:** ![everSats](https://avatars.discourse-cdn.com/v4/letter/e/9fc29f/32.png) [@everSats](https://community.umbrel.com/u/everSats)\
**Post date:** [November 23, 2022, 10:51am UTC](https://community.umbrel.com/t/edit-the-core-lightning-cln-rtl-config-file/9089/5 "2022-11-23T10:51:09Z")

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You need to create a config file via ssh. Access via ssh and then:

sudo nano ~/umbrel/app-data/core-lightning/data/lightningd/bitcoin/config

Put whatever config settings you want in there and then save.

Then restart CLN:

sudo ~/umbrel/scripts/app restart core-lightning

Create a backup of your config file in the same folder in case config gets deleted after an update.