> For the complete documentation index, see [llms.txt](https://ben-hurs-organization.gitbook.io/guia-de-appsec/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ben-hurs-organization.gitbook.io/guia-de-appsec/command-line/ssh.md).

# SSH

### Artigos

* [A Visual Guide to SSH Tunnels: Local and Remote Port Forwarding](https://iximiuz.com/en/posts/ssh-tunnels/)

### Links Úteis

* [Generating a new SSH key and adding it to the ssh-agent](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent)

### Cheat Sheet

#### Gerar par de chaves SSH

{% code title="Gerar par de chaves ssh ed25519" %}

```bash
ssh-keygen -t ed25519 -C "your_email@example.com"
```

{% endcode %}

Ele vai perguntar o local onde salvar a chave (padrão `~/.ssh/id_ed25519`), `senha` e `confirmar senha`.

Ele vai gerar duas chaves:

{% code title="PRIVADA: \~/.ssh/id\_ed25519" %}

```bash
cat ~/.ssh/id_ed25519
```

{% endcode %}

{% code title="Output" %}

```
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
QyNTUxOQAAACAF9+5BkCMDAJ84w+WlhU9glZKU12sXRzW+Hj1pElaz7gAAAKCzsjUts7I1
LQAAAAtzc2gtZWQyNTUxOQAAACAF9+5BkCMDAJ84w+WlhU9glZKU12sXRzW+Hj1pElaz7g
AAAEAjwc/egakGFdlhXxU2WK15Dtu1fnguQwQQKdCDwJWPuQX37kGQIwMAnzjD5aWFT2CV
kpTXaxdHNb4ePWkSVrPuAAAAFnlvdXJfZW1haWxAZXhhbXBsZS5jb20BAgMEBQYH
-----END OPENSSH PRIVATE KEY-----
```

{% endcode %}

{% code title="PÚBLICA: \~/.ssh/id\_ed25519.pub" %}

```bash
cat ~/.ssh/id_ed25519.pub
```

{% endcode %}

{% hint style="warning" %}
A chave privada (`id_ed25519`) nunca deve ser exposta, nunca deve sair do seu computador, não passe ela para ninguém.

Em serviços (como github ou gitlab), use SEMPRE a chave pública (`id_ed25519.pub`).
{% endhint %}