First, attach the snapshot of the error:
The system
A virtual computer created in VirtualBox
You can see the configuration of the hardware of the virtual computer, It is enough for ONLYOFFICE Docs server, I think.
A Linux installed in the virtual computer:
It’s “中科方德”, I don’t know it’s English name, but I do know, it’s like RedHat/CentOS.
The error
https://helpcenter.onlyoffice.com/installation/docs-enterprise-install-docker.aspx
This page of your site guide me. The error come out in this step:
sudo docker run -i -t -d -p 80:80 --restart=always -e JWT_SECRET=my_jwt_secret onlyoffice/documentserver-ee
Before the error What I did
What I do before the error, is something not mentioned in your guide, but I DO need to do.
I added a lot of mirror sites of Docker softs library, as you can see in my error snapshot
because the original official Docker source is not able to be connected. My configuration is guided by this page
This configuration file /etc/docker/daemon.json is the only difference between my operation with your guide of the installation.
In the last line of the configuration file, is the default Docker server url, it is the only url that cannot be ping in the list. as you can see in the snapshot
What to do?
Should I seek for another docker mirror site? or
Should I step back to use the default Docker server? or
Should I install a tool soft to penetrate the waII? or
Something others I do not know?