Fix for Older SSH Keys Not Working on Windows Git

Friday, September 22nd, 2023

Fix for Older SSH Keys Not Working on Windows Git

If your old SSH keys are not working on Windows after installing the latest Git client and tools, and you're being prompted to login (~/.ssh/config configuration being ignored), the fix is to add the following line to the bottom of the C:\Program Files\Git\etc\ssh\ssh_config file:

Host *
	PubkeyAcceptedKeyTypes +ssh-rsa

That's it.  It will work again. 

Similar fix for Linux: https://blog.eamster.tk/fix-for-ssh-keys-not-working-on-newer-versions-of-debian-ubuntu/

Fix for Older SSH Keys Not Working on Newer Versions of Debian / Ubuntu

Thursday, May 25th, 2023

Fix for SSH Keys Not Working on Newer Versions of Debian / Ubuntu

If your old SSH keys are not working on newer versions of Ubuntu / Debian, and you're being prompted to login (~/.ssh/config configuration being ignored), the fix is to add the following line to the bottom of the /etc/ssh/ssh_config file:

    PubkeyAcceptedKeyTypes +ssh-rsa

That's it.  It will work again.  You may need to restart the ssh service

sudo service ssh restart

https://askubuntu.com/questions/1404049/ssh-without-password-does-not-work-after-upgrading-from-18-04-to-22-04