Problem

How to perform a manual SFTP connection from Backend through Edge SOCKS proxy?
One might want to manually test connectivity and SOCKS proxy configuration.

Resolution

To do so, you can use this command from a Backend :

sftp -o ProxyCommand='nc -X 5 -x edge-hostname:1080 %h %p' username@remote-host

Where:

"edge-hostname" should be replaced with the hostame or IP of Edge

"1080" is the default SOCKS port on Edge

"username" should be replaced with the remote user

"remote-host" should be replaced with the remote hostname or IP

** Please note, that you must nave “nc” (NetCat) installed on the server. If you do not, you would need a Unix admin to install it first.

If you cannot install "nc", you can use "curl" instead.

To do so, execute the following from the Backend:

curl --socks5 edge-hostname:edge-socks-port -p sftp://remote-host/ -vk -u username