[Help] [TOS 6] SSH Key Authentication Fails Due to Home Directory Permissions?

[gustang]

Hi everyone,
I'm currently using a TNAS running TOS 6 and ran into an issue when trying to connect via SSH using an RSA key.

Details:

The same SSH key works fine on other systems (VPS, Synology, etc.).

On TerraMaster, the connection fails with:

Authentication refused: bad ownership or modes for directory /home/username

I noticed that the user home directory is created with 777 permissions and includes ACL (indicated by a +).



After manually running:

Code: Select all

chmod 755 /home/username 

→ SSH key login works as expected.

I'm wondering:

- Is this the default behavior in TOS 6 when creating new (admin) users?

- Is there an official way to use SSH key authentication without manually changing permissions?

Would appreciate any insights or suggestions from the team and community.
Thanks in advance!

[MikeZhang]

1. The user created when reinstalling the system is a root user by default. Subsequent users need to be manually granted administrator privileges in the TOS system. The default privileges are ordinary user privileges.
2. No