Translations:Configuring WSL as a ControlMaster relay server/6/en

Log into the Ubuntu VM and create a custom_ssh folder

jaime@ubuntu:~$ cat custom_ssh/sshd_config
Port 2222
HostKey /home/jaime/custom_ssh/ssh_host_ed25519_key
HostKey /home/jaime/custom_ssh/ssh_host_rsa_key
AuthorizedKeysFile /home/jaime/custom_ssh/authorized_keys
ChallengeResponseAuthentication no
UsePAM no
Subsystem sftp /usr/lib/openssh/sftp-server
PidFile /home/jaime/custom_ssh/sshd.pid

You may copy the ssh_host keys from /etc/ssh with:

sudo cp /etc/ssh/ssh_host_ed25519_key /home/jaime/custom_ssh/