# ssh

## Generate key

`rsa` type is depracated, so:

```sh
ssh-keygen -t ed25519 -C "xxxx-comments"
```

## Generate pub key from private key

```sh
ssh-keygen -y -f id_rsa > id_rsa.pub
```

## Create password free login

```sh
ssh-copy-id xxxx-host
```

## Show keys stored in ssh-agent

```sh
ssh-add -l
```