SSH issue with Whonix 18

Support
1

Tunneling VNC by SSH.
Connecting using ssh -L 5901:localhost:5901 myuser@MyServerIP results in : getaddrinfo:fatal error: bad value for all flags

I tried connecting to a VPS with Debian 13 installed and a second VPS with Debian 12 installed the issue persists and started to begin after I upgraded to Whonix 18 worked flawless on Whonix 17.

2

The description of the issue is somewhat unclear. Can you specify exactly what machines are involved, what OSes they run, and which combination of OSes cause the issue? I think the situation is:

  • Plain Debian 13 VPS connected via clearnet
  • Whonix 18 VMs on a local client
  • Attempting to SSH from the workstation to the VPS using the above SSH command, thus tunneling the SSH connection over Tor

Is that correct?

1 Like
4

Whonix inherits Kicksecure’s security hardened SSH client (and server) configuration file. This is the default since version 18

/etc/ssh/ssh_config.d/30_security-misc.conf

SSH Client Configuration File

Also Debian changed their upstream /etc/ssh/ssh_config SSH client configuration file.

This can cause issues with special use cases or legacy SSH server configurations.

/etc/ssh/sshd_config.d/30_security-misc.conf

SSH Server Configuration File

Also Debian changed their upstream /etc/ssh/ssh_config SSH server configuration file.

6

No. You need to research or trial and error.

8

No.