Problem

You are trying to connect to IGEL Linux's built-in OpenSSH server with an SSH client which does not support the strong algorithms of the server.

Solution

To enable weaker encryption algorithms, proceed as follows:

  1. In Setup, go to System > Registry > network > ssh_server.
  2. Change the settings according to your requirements:
    • disable_weak_encryption: Disable this option to enable weaker encryption.
    • disable_weak_hostkey_algos: Disable this option to enable weaker host key algorithms.
    • disable_weak_kexalgorithms: Disable this option to enable weaker key exchange algorithms.
    • disable_weak_macs: Disable this option to enable weaker MACs.
    • minimal_encryption_level: The minimal level of encryption