@zippynx

Hello. SSH isn't blocked on my nor ISP side. It seem that GitHub is rejecting the connections for me 🤔

Note: I don't want to clone, but upload my project (with contain folders that can't be uploaded thru website UI due leak of support for that) is stored on my mobile phone) to the repository

Hi @mdziczkowski! Thanks for the clarification that helps narrow things down.

Just to clarify how GitHub's SSH works: GitHub does not provide an interactive SSH shell or SFTP-style file transfer. SSH on GitHub is used strictly as a transport layer for Git operations (such as git push, git fetch, and git clone). Because of that, attempting to open a standard interactive SSH session from a mobile SSH/SFTP client will result in a rejected connection.

If your goal is to upload an existing project from your phone without cloning first, you can use a Git-enabled terminal app (for example Termux on Android) and run the standard Git workflow inside your project folder:

git init
git add .
git commit -m "Initial upload"
git remote add origin git@github.com:USERNAME/REPO.git
git push -u origin main

If you later encounter connection issues such as timeouts or port restrictions, using SSH over port 443 can be a valid workaround. Otherwise, the standard SSH setup should work as expected.

Let me know if this helps!

@zippynx

The case is that I'm already using Terminus and attempt thru it to connect and cace rejected connections

Hi @mdziczkowski! Ah, that perfectly explains the behavior. Since you are using Terminus (which is primarily a remote SSH/SFTP client), it is almost certainly trying to open a standard interactive shell session.

As mentioned previously, GitHub will immediately reject that type of session by design, even if your SSH key is completely valid. The TCP connection itself succeeds, but the SSH session request gets denied before any Git operations can run.

To upload a project stored locally on your phone, you need a local Git-capable environment rather than a remote SSH client like Terminus.

For Android, an app like Termux works well because it provides a local Linux environment where you can install Git and run normal Git commands directly against your phone storage.

You can also verify the exact rejection stage using verbose SSH logging:

ssh -vT git@github.com

That output will show whether the issue is related to authentication, session negotiation, or simply the unsupported interactive shell request.

So in short: the problem is most likely not your SSH key or ISP, but the fact that Terminus is the wrong type of tool for this specific workflow.