Hi! anh nói là port 80 đã open nhưn

Hi! anh nói là port 80 đã open nhưng khi tôi check ở: http://www.yougetsignal.com/tools/open-ports/
Thì nó vẫn close. Còn port 443 và 21 tôi đã mở port giống cách tôi làm trước kia với những VPS linux của tôi ở Azure và những port ở VPS đó đều mở. Tôi không hiểu sao VPS này của tôi nó lại bị như vậy và port 53 tôi đã dùng câu lệnh mà anh đưa cho tôi nhưng khi tôi check lại thì nó vẫn close.
Tôi mong anh có thể giúp tôi

Kết quả (Anh) 1:

Hi! you said that port 80 was open but when I check in: http://www.yougetsignal.com/tools/open-ports/It's still close. Also port 443 and 21 I have opened port the same way I did before with my linux VPS in Azure and the port in VPS which are all open. I don't understand why my VPS it was so and port 53 I was using the command which you gave me but when I check back it is still close.I'm hoping you can help me

Kết quả (Anh) 2:

Hi! He said the port 80 open but when I check in: http://www.yougetsignal.com/tools/open-ports/
Then it was close. While port 443 and port 21 I opened the same way I did before with my linux VPS Azure and the port at which VPS are open. I do not understand why this my VPS it was like that and I have to use port 53 statement that he gave me, but when I check back, it's still close.
I hope you can help me