update SSH doc

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Jesús 2022-04-17 11:17:40 +08:00
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@ -84,6 +84,12 @@ To add a nice welcome message (e.g. from the /etc/issue file), configure the Ban
Banner /etc/issue
```
### Copy public key to server
```console
ssh -i ~/.ssh/mykey.pub user@host
```
#### Securing the authorized_keys file
For additional protection, you can prevent users from adding new public keys and connecting from them.