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I am having some issues with using git (github) on a remotely accessed machine. I am logging in from home into my work computer via ssh e.g.

me@home$ ssh me@work

after which I try to do a pull or push request to github on my work computer via home e.g.

me@workViaHome$ git pull origin branch

after which I receive the error:

Permission denied (publickey). fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists.

I have tried loading the ssh key from my work computer using:

me@workViaHome$ eval "$(ssh-agent -s)" me@workViaHome$ ssh-add ~/.ssh/id_rsa

but still no luck. When I am physically at my work computer I can issue requests to github without any issues; so it seems the issue with with the status of my ssh-keys due to my ssh session.

Thanks for any help!

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  • Verify that the private key you've added on workViaHome is actually the right one for the public key you've added on github. Also verify that the access permissions for the ~/.ssh directory are correct. Finally, try to ssh to github using the same user/port as git, and add the verbose flag to get more info. Commented Jul 17, 2017 at 6:54
  • So I isolated the issue to ssh-add not triggering git to use the ~/.ssh/id_rsa key, it was still trying to use the default key. I cheated for now in that I added the default key to github and it works. I used ssh -vT [email protected] to figure it out. I'm still not sure why ssh kept falling back to the default key Commented Jul 17, 2017 at 7:09

1 Answer 1

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SSH is using the default keys if it is not specified otherwise in configuration or if the ssh-agent is not providing any other key.

If you are using a key in nonstandard location, that you have added in your gnome-keyring, you could notice this behavior, because gnome-keying starts only for the graphical sessions, but not for ssh sessions.

Certainly, you can resolve this by properly configuring this key in ~/.ssh/config on the work computer. Just add

Host github.com IdentityFile ~/.ssh/path_to_key IdentitiesOnly yes
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