Unable to connect to VirtualBox VM from Kubuntu host using NAT


Gilberts

I am using Kubuntu 13 as host and Xubuntu 12 as guest. In the VM network options, I selected NAT, and like 127.0.0.1:23 => 10.0.2.15:22. I can access the internet from the guest, but when I try to SSH to the guest, I get connection refused. Recently I successfully used this setup on Windows 7 - not sure why It doesn't work on Ubuntu. Please help! :)

Eric Carvalho

Ports < 1024 are privileged ports and only root can bind to them. Since VirtualBox is running under an unprivileged user (the user you are logged in to), it cannot open privileged ports at all.

refer to:

  1. Why are ports lower than 1024 privileged?
  2. Is there a way to make a non-root process bind to a "privileged" port (<1024) on Linux?

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