Question 83145 in Docker Question posted in
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No connection could be made because the target machine actively refused it with packer for vagrant building with virtualbox – Docker

I try to create a Vagrant Box (virtualbox) with Packer into Windows 11 OS.
I use a script which run correctly in the past but I don’t know why this time I have SSH issue that cause impossible building.

During the building packer I have this error message :
2022/05/30 10:23:51 packer.exe plugin: [DEBUG] TCP connection to SSH ip/port failed: dial tcp 127.0.0.1:2619: connectex: No connection could be made because the target machine actively refused it.

This TCP port number (2619) is random day by day.
In this example I try to know what application use this port number with those commands :

netstat -an | grep '2619'
netstat -ab | grep '2619' 
netstat -aon | grep '2619'

But nothing appear

I use the CurrPorts application to view all TCP/UDP ports in my system. And also I can’t view anything about this port number 2619. But I can see warning on packer.exe line like this :

enter image description here

Actually, I use also Docker in my system (not in the same time). But I don’t know how parameter port into this.

Why TCP local and remote port does not corresponding to the port number error into packer (2619) ?
Why this port number not appear into netstat commands ?

I understand that connection is forbidden (but access ok) but I don’t know why and how authorize this…

Here my config docker desktop :

enter image description here

enter image description here

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How authorize or manage ports for using docker and packer in the same OS (not at the same time) ?

  • No Docker Desktop launched
  • disabled firewall Windows
  • try with uninstalled docker desktop

I don’t know if this message into linux build server dealing with this issue but :

enter image description here

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2

Answers


  1. Chosen as BEST ANSWER
    0

    After testing lot of thing, the unique problem is :

    Microsoft Windows 11 update (KB5012592)

    For resolving that you need to :

    stop using Hyper-V component windows (I never do something other. It's just this in my context)

    More info here :


  2. 0

    Docker does not create it’s own port, it must be a given with the -p command.
    Like, docker run -d -p 8080:80 –
    Map TCP port 80 in the container to port 8080 on the Docker host.

    About the netstat -aon | grep ‘2619.
    I am pretty sure that windows are using findstr command and not grep.
    After using findstr you should get a PID of the process which you can use taskkill

    See more here :
    https://stackoverflow.com/a/39633428/10814912

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