> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/hacking-wifi/wpa-wpa2-psk-network-attacks/fundamentals/configuring-the-wireless-card-in-monitor-mode.md).

# Configurando a Placa Sem Fio em Modo Monitor

Prepare, ative, verifique e restaure um adaptador sem fio em modo monitor.

Use este fluxo de trabalho em um adaptador sem fio aprovado. O modo monitor pode interromper a conexão de rede normal do adaptador.

{% hint style="warning" %}
`airmon-ng check kill` interrompe serviços que podem afetar a conectividade. Salve o trabalho em andamento primeiro.
{% endhint %}

### 1. Identifique a interface sem fio

Liste as interfaces de rede disponíveis:

```bash
ip a
```

Identifique o nome do adaptador sem fio. Este exemplo usa `wlx00c0cabd0890`.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2FaisiDxOMMALGyrGhFLRo%2F%7BF180DED4-9062-458B-9DFB-5D5196146768%7D.png?alt=media&amp;token=372d4fc7-8909-497b-9c85-22493fa4b9db" alt=""><figcaption></figcaption></figure>

### 2. Interrompa processos conflitantes

Interrompa serviços que podem interferir no modo monitor:

```bash
airmon-ng check kill
```

Isso pode interromper o NetworkManager e desconectar o sistema do Wi‑Fi.

### 3. Ative o modo monitor

Inicie o modo monitor no adaptador selecionado:

```bash
airmon-ng start wlx00c0cabd0890
```

A ferramenta pode criar ou renomear uma interface de monitor. Não presuma um nome fixo.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2FhAIEEcZMiyaQtT97tHAe%2F%7B55CCC10D-F432-46AB-BF0D-893F699207CC%7D.png?alt=media&amp;token=9d48c036-e91c-4fd0-b5d7-69ae8939daca" alt=""><figcaption></figcaption></figure>

### 4. Verifique a interface

Confirme que o adaptador mostra `Modo:Monitor`:

```bash
iwconfig

ifconfig wlan0mon up
```

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2F4FBnwvB4EcPCS0EXsKc4%2F%7B27671677-BF7E-4C46-AF64-BE6EC0F964B4%7D.png?alt=media&amp;token=59a6033a-5e35-4d7b-837d-4f9924d7f3b1" alt=""><figcaption></figcaption></figure>

Use o nome da interface de monitor mostrado na saída para as tarefas subsequentes do laboratório.

### 5. Restaure a operação normal

Interrompa o modo monitor quando a avaliação terminar. Substitua `wlan0mon` pelo nome da sua interface:

```bash
airmon-ng stop wlan0mon
```

Reinicie o NetworkManager para restaurar o gerenciamento normal da rede:

```bash
sudo systemctl restart NetworkManager
```

Se a conexão não voltar, reconecte-se pelo NetworkManager depois que ele for reiniciado.


---

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