The default configuration (see ‘hurd-vm-configuration’ below) spawns a secure shell (SSH) server in your GNU/Hurd system, which QEMU (the virtual machine emulator) redirects to port 10222 on the host. By default, the service enables “offloading” such that the host ‘guix-daemon’ automatically offloads GNU/Hurd builds to the childhurd (*note Daemon Offload Setup::). This is what happens when running a command like the following one, where ‘i586-gnu’ is the system type of 32-bit GNU/Hurd:
This says port 10222 but the port that actually works is 10022