Recently GitHub updated their RSA SSH host key so you might be having an error while pushing changes as shown in the below image
This can be fixed by running following commands:
ssh-keygen -R github.com
curl -L https://api.github.com/meta | jq -r '.ssh_keys | .[]' | sed -e 's/^/github.com /' >> ~/.ssh/known_hostsFull details can be found here: https://github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/
Sometimes we have “Fingerprint has already been taken” while adding our ssh key.
To fix that issue, we need to generate a new ssh key. But the problem is your existing ssh key is added to other resources so if you generate a new one, you have to replace it everywhere.
Instead of doing this, generate a new ssh key in a new file and add it wherever it is needed.
Run the following commands on the terminal to generate the SSH key:
ssh-keygen -t rsa -b 4096 -C "[email protected]"Then it will ask where to generate:
Generating public/private rsa key pair.
Enter file in which to save the key (/home/<NAME>/.ssh/id_rsa):Give the following name for the file
/home/<NAME>/.ssh/id_rsa2
And the last step is to add it to the file by the following command:
ssh-add ~/.ssh/id_rsa2
To fix this issue run the following command to your repo:
git pull --rebase
And then do whatever you want to do.
Sometimes we have an error like below when we try to push on Github.
Try to check where is your ssh key is being used by the following command:
ssh -T -ai ~/.ssh/id_rsa [email protected]You will get a response like this:
So, in my case, my ssh key was being used by my other GitHub account. Now you have 2 choices.
I did 1st as It was not needed for my other account.
