# Sử dụng PET

#### 1. Cài đặt và sử dụng PET trên Ubuntu

```
sudo apt-get install linuxbrew-wrapper
wget https://github.com/knqyf263/pet/releases/download/v0.3.6/pet_0.3.6_linux_amd64.deb
dpkg -i pet_0.3.6_linux_amd64.deb
```

Sau khi đã cài đặt thành công

![](https://2228498603-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0lSGvKwtJHW3HsU6FBvs%2Fuploads%2Fgit-blob-c135aea675233b63c6251e0d1524c017ba20e52a%2Fimage.png?alt=media)

![](https://2228498603-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0lSGvKwtJHW3HsU6FBvs%2Fuploads%2Fgit-blob-ba3c11475885c1a9e8f5cdfbcc2357a431985292%2Fimage.png?alt=media)

Ví dụ câu lệnh Monitor DDOS

```
netstat -nap | grep \:80\  | awk '{print $5}' | tr ":" " " | awk '{print $1}' | sort | uniq -c | sort -n
```