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Can’t install docker on Ubuntu 20.04

Hello everyone,

I had different problem while installing docker on a virtual machine ubuntu 20.04
the first problem was : “Failed to fetch https://download.docker.com/linux/ubuntu/dists/focal/InRelease Reading from proxy failed - read (115: Operation now in progress)”

I tried to use the different solution i found and now am having the next

“Could not handshake: An unexpected TLS packet was received.” (The proxy is good) and this
“E: The repository ‘Index of linux/ubuntu/ eoan Release’ does not have a Release file.”

If i look into the eoan repository everything is ok.

Can i download the release i launch the update manually ?
If someone can help ? Thank you

Check the proxy (both using http://)
Acquire::http::proxy “http://proxy:port”;
Acquire::https::proxy “http://proxy:port”;