OpenSSH sshd on Windows Subsystem for Linux

Internal

• OpenSSH Operations
• Windows Subsystem for Linux

Overview

This article contains the procedure to configure a Windows Subsystem for Linux sshd to start at boot and allow ssh access to the Windows host.

Procedure

UsePrivilegeSeparation

Turn UsePrivilegeSeparation off by setting:

UsePrivilegeSeparation no

This is required to prevent sshd startup error that manifests in logs as:

chroot("/var/run/sshd"): Function not implemented [preauth]

Regenerate Server Keys

Regenerate the server keys following the procedure described here:

Regenerate Server Keys

This is required to prevent sshd startup error that manifests in the logs as:

debug1: list_hostkey_types:
No supported key exchange algorithms

• Add the allowed public key in ~/.ssh/authorized_keys

• Set acceptable permissions:

cd ~
chmod -R go-rwx .ssh

Start at boot.

visudo

More restrictive if necessary

Status

/etc/init.d/ssh status

Start/Stop

/etc/init.d/ssh start|stop