Hi, I'm trying to upload file FROM Ubuntu to a customized distribution of linux.

Now, normally, you just fire up scp in the CLI right? Except... this custom build of linux uses RAW connection, without any encryption, so the "conventional" way of uploading files with scp simply doesn't seem to work, I could be wrong though.

Anyone can tell me what I should do? If this is a no go I'll try to install FTP service on the target server.

scp uses ssh to transfer files. I am not sure what you mean by raw. Basically you need something that listens i.e. a server and some method that sends data. Depends on what utilities or servers are installed on this custom build.

The simplest way would be using nc which does not use encryption for transmission. There are many ways.

PuTTY is a client for SSH and other protocols, and one type of connection it can make is "raw" - not "RAW"; it's a word not an acronym - which simply means you directly type the input which is sent over TCP to a specified port on the server. (It can be used to debug plaintext protocols, i.e. HTTP/SMTP/etc).

There must of course be something on the server listening to the requested port which is capable of processing the input it receives.

It does not make sense to attempt to use this mechanism as a means for file transfer - one should use a protocol designed for that purpose: install an SSH server and pick one of scp/sftp/rsync.

Hi I mean if I need to connect to the server with putty, the protocol?format? is "raw".

So I assumed the file transfer should also be "raw". But normally SCP works by encrypting data that got transferred. I don't know what to do?

Hi, my thinking went like this. Since I use "raw" protocol/format/whatever to connect to the server, then scp must be configured to use also "raw" to transfer the file.

Except I don't know how to do that and I have no leads...

BTW isn't SCP service installed by default?

Usually Ubuntu installs scp and ssh by default but what is installed on the custom device? Putty is just a console terminal program not really a file transfer utility.

Oh I understand that. I now begin to suspect the target system doesn't have any SSH capability at all...