Hi,
sorry about the late reply.
Maybe SSH hopping is a better name than tunneling..
I have this in my .ssh/config
Host my_hazel_machine_external
HostName my_hazel_machine
ProxyCommand ssh external.my_domain.com exec nc %h %p
Then I can simply use "ssh my_hazel_machine_external" in one step to connect to a machine behind my external SSH server at external.my_domain.com. Unfortunately when trying to use "my_hazel_machine_external" as the hostname in Hazel I get "Domain name not found".
The error is explained by SFTP in Hazel using DNS only for resolving, but usually SSH/SFTP solutions supports host aliases configured in the ssh config.
Thanks a lot,
Eric