Cant renew sertificate on QNAP server

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My domain is:

I ran this command:
its on the qnap server
It produced this output:
cant connect
My web server is (include version):
QNAP 431p2
The operating system my web server runs on is (include version):
QTS 4.4.3
My hosting provider, if applicable, is:
MGTS, Russia
I can login to a root shell on my machine (yes or no, or I don't know):
I don't know
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
QNAP standart control panel
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
I dont know - its inside QNAP

I too can't connect to the IP address Is it still correct?

Host is up.

80/tcp  filtered http
443/tcp filtered https


I can't tell that from the NMap output you've provided? I can't ping the host, I can't connect to port 80/443 (filtered as your output shows), nor port 21 or 22 to sum up some other common ports..


I think my ISP blocked 80 port

I added a couple more ports you mentioned. Don't really want to hammer the IP to hard.

sudo  nmap -sV -O -Pnu -p 21-443
Starting Nmap 7.80 ( ) at 2022-02-22 10:17 PST
Nmap scan report for (
Host is up.
All 423 scanned ports on ( are filtered

That option makes every host being up, at least as NMap is concerend. From the man page:

         -Pn: Treat all hosts as online -- skip host discovery

Try it with a random IP address you know can't be reached, e.g. a private IP range not active in your network.

So the incorrect IP address is still on the table as far as I'm concerned.


Always Learning! Thanks @Osiris

Nmap scan report for ( [host down]


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