Merge local SSH keys to work simultaneously

I have been using SSH alot. I find myself creating new keys when something fails, like for git, then I lose communication to my other servers. I know going forward there should only be one set of locally generated keys, but for now, I need to merge the many /.ssh backups I've made so they can all be used simultaneously. How can I do this?

Solution 1:

It is permissible to list many keys in your ~/.ssh/config. Or you can add many keys to an SSH agent.

Host *
    IdentityFile ~/.ssh/zoredache_20101108.id_rsa
    IdentityFile ~/.ssh/zoredache_20100211.id_rsa
    IdentityFile ~/.ssh/zoredache_20080514_id_rsa