HackMD
Offsec Proving Grounds設定教學
先來註冊
https://portal.offsec.com/sign-up/pg
記得要去信箱確認
在信件中按下確認按鈕後，直接按下continue就好，
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- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
看你要不要接收通知
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
How2Play
用網站的Kali
因為是免費方案，所以只有一般的Lab可以玩
依序點擊Explore -> Labs -> Play
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- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
我們先從
Warm Up類別玩起，啟動挑戰就按右邊的三角形即可，我這邊開啟了DC-1這個挑戰
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Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
進到網站幫我們開啟的Kali，挑戰的IP就是上面圖片上的IP位址，要提交FLAG時
點擊右邊的旗子符號就可以了
用VPN
用APP
先在左側下載VPN
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- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
下載
OpenVPN打開OpenVPN，選擇Upload File把剛剛下載的.ovpn匯入進來，按下Connect就好了
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Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
看到有流量就可以了
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
回到PG會發現左邊VPN有綠色的點，代表連線成功，這時候一樣點擊左邊的三角形開始挑戰就可以了！
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
用CLI
也可以使用終端介面連線vpn，以Kali舉例來說，將.ovpn的檔案放進Kali後
使用這個指令即可在背景執行
sudo openvpn --config Offsec*.ovpn --daemon
確認在右上角有看到IP也就代表連線成功了
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Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
要關閉連線只需要先輸入
pgrep -f openvpn
得到PID後再使用下面這個來中斷連線就可以了
sudo kill <PID>
或者組合在一起
sudo kill `pgrep -f openvpn`
這時候右上角的IP就消失了
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
跟上個方法不同的是，這個Lab玩的地方就是在自己的console/terminal上，而不是網站的Kali了！
免費仔的惡夢
因為我們是免費仔，所以各位需要定時休息一下
每 24 小時只有 3 小時能玩 嗚嗚嗚嗚嗚嗚
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Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
