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doc/beginners-guide/beginners-guide.md
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@ -65,4 +65,4 @@ Once you've started for the first time, there's a script called `contrib/bootstr
There are also numerous plugins available for Core Lightning which add capabilities: see the [Plugins](doc:plugins) guide, and check out the plugin collection at: <https://github.com/lightningd/plugins>, including [helpme](https://github.com/lightningd/plugins/tree/master/helpme) which guides you through setting up your first channels and customising your node.
For a less reckless experience, you can encrypt the HD wallet seed: see [HD wallet encryption](doc:securing-keys).
For a less reckless experience, you can encrypt the HD wallet seed: see [HD wallet encryption](doc:backup-and-recovery###hsm-secret-backup).

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doc/beginners-guide/securing-keys.md
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---
title: "Securing keys"
slug: "securing-keys"
hidden: false
createdAt: "2022-11-18T16:28:08.529Z"
updatedAt: "2023-01-31T13:52:27.300Z"
---
You can encrypt the `hsm_secret` content (which is used to derive the HD wallet's master key) by passing the `--encrypted-hsm` startup argument, or by using the `hsmtool` (which you can find in the `tool/` directory at the root of [Core Lightning repository](https://github.com/ElementsProject/lightning)) with the `encrypt` method. You can unencrypt an encrypted `hsm_secret` using the `hsmtool` with the `decrypt` method.
If you encrypt your `hsm_secret`, you will have to pass the `--encrypted-hsm` startup option to `lightningd`. Once your `hsm_secret` is encrypted, you **will not** be able to access your funds without your password, so please beware with your password management. Also, beware of not feeling too safe with an encrypted `hsm_secret`: unlike for `bitcoind` where the wallet encryption can restrict the usage of some RPC command, `lightningd` always needs to access keys from the wallet which is thus **not locked** (yet), even with an encrypted BIP32 master seed.

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doc/node-operators-guide/faq.md
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@ -89,21 +89,6 @@ the default `bitcoind` max.
Effort has been made to get `lightningd` running on Android, [see issue #3484](https://github.com/ElementsProject/lightning/issues/3484). Currently unusable.
### How to "backup my wallet" ?
See [Backup and recovery](doc:backup-and-recovery) for a more comprehensive discussion of your options.
In summary: as a Bitcoin user, one may be familiar with a file or a seed (or some mnemonics) from which it can recover all its funds.
Core Lightning has an internal bitcoin wallet, which you can use to make "on-chain" transactions, (see [withdraw](ref:lightning-withdraw)). These on-chain funds are backed up via the HD wallet seed, stored in byte-form in `hsm_secret`.
`lightningd` also stores information for funds locked in Lightning Network channels, which are stored in a database. This database is required for on-going channel updates as well as channel closure. There is no single-seed backup for funds locked in channels.
While crucial for node operation, snapshot-style backups of the `lightningd` database is **discouraged**, as _any_ loss of state may result in permanent loss of funds. See the [penalty mechanism](https://github.com/lightning/bolts/blob/master/05-onchain.md#revoked-transaction-close-handling) for more information on why any amount of state-loss results in fund loss.
Real-time database replication is the recommended approach to backing up node data.
Tools for replication are currently in active development, using the [`db write` plugin hook](doc:hooks#db_write).
# Channel Management
### How to forget about a channel?