Can't check50 and submit50 about cs50.readthedocs.io

[rongxin-liu]

For SSH configuration, please follow this instruction again carefully, especially pay attention to when you should enter "y" or not.

Step 1: In your Codespace terminal (code.cs50.io), run ssh-keygen and press enter
Step 2: When prompted to generate a new key, press enter without entering anything (only enter "y" if prompted to overwrite the existing key, otherwise just press Enter without entering anything)
Step 3: Press enter again for all subsequent prompts, until you see something looks like (this is NOT what you will be copying to GitHub):

Step 4: run cat ~/.ssh/id_rsa.pub
Step 5: Copy everything after executing the above command up until the next dollar sign. So for example, this is what you see after running the above command (do not copy what I wrote here, please reference your terminal instead):

$ cat ~/.ssh/id_rsa.pub
ssh-rsa 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 ubuntu@codespaces_e123a2
$

You only need to copy the content in bold font (yours instead, not mine). The content you have copied should start with "ssh-rsa" and ends with "ubuntu@codespaces_e123a2" (your content would look similar but different to mine).

Step 6: Visit https://github.com/settings/keys, logging in with your GitHub username and password as usual.
Step 7: Click New SSH Key.
Step 8: Paste your public key into the text box under Key. Optionally input a title under Title (e.g., CS50 Codespace or CS50 VS Code).
Step 9: Click Add SSH Key.
Step 10: Run "ssh -T [email protected] -p 443" and see if you SSH key can be verified successfully.

[pythonyzh]

What you paste was what I followed and didn't work out. Because this doc is outdated with Github upgrading security.
Below is the updated doc that I followed which give me the accessibility to use submit50 and check50.
https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account

[rongxin-liu]

Thanks for reporting, which part was out-dated precisely? I went through the steps with a brand new codespace and it still worked ok.

[pythonyzh]

creating SSH key. When following the old doc, the terminal gives permission denied.

…

On Wed, Jan 4, 2023, 11:02 PM Rongxin Liu ***@***.***> wrote: Thanks for reporting, which part was out-dated precisely? I went through the steps with a brand new codespace and it still worked ok. — Reply to this email directly, view it on GitHub <#151 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A5CUVJ5Z3675FEAG44NROVLWQZIVNANCNFSM6AAAAAATRKI2LY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[rongxin-liu]

I see. As far as I could tell, based on your screenshot, your public key id_rsa.pub wasn't created at the location /home/ubuntu/.ssh/id_rsa.pub (the default location), so the ssh-agent could not locate your private/public key when trying to authenticate with GitHub.

[pythonyzh]

Yes. That's what the new doc said that github elevated their security level. The old method creating new SSH key no longer works for new account.

…

On Thu, Jan 5, 2023, 9:46 AM Rongxin Liu ***@***.***> wrote: I see. As far as I could tell, based on your screenshot, your public key id_rsa.pub wasn't created at the location /home/ubuntu/.ssh/id_rsa.pub (the default location), so the ssh-agent could not locate your private/public key when trying to authenticate with GitHub. — Reply to this email directly, view it on GitHub <#151 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A5CUVJYJ5JO2FW35BVDQC43WQ3UGPANCNFSM6AAAAAATRKI2LY> . You are receiving this because you authored the thread.Message ID: ***@***.***>