Use gnome-keyring from ssh session

Question

I am a happy user of Debian/stable. From my running gnome session I can do all ssh operation (eg. git) without entering my ssh passphrase.

However it stops working whenever I try to ssh to my running box. How can I setup my ssh session to use the running gnome-keyring as ssh-agent ?

$ ssh localhost
$ git remote update
Enter passphrase for key '/home/user/.ssh/acme_id_rsa': 

The following solutions did not work for me:

• https://unix.stackexchange.com/a/53193/32896

The upstream documentation does not list this scenario:

• https://wiki.gnome.org/Projects/GnomeKeyring/Ssh

I tried also:

$ ssh localhost
$ ssh-add
Could not open a connection to your authentication agent.

---

I tried following suggestion from:

• https://askubuntu.com/a/976458/248166

So I did:

$ sudo apt-get install keychain
$ cat .zprofile 
eval `keychain --eval --agents ssh acme_id_rsa`

But then when connecting from ssh session it still ask for my passphrase:

$ ssh localhost
[...]
 * keychain 2.8.5 ~ http://www.funtoo.org
 * Found existing ssh-agent: 19438
 * Adding 1 ssh key(s): /home/user/.ssh/acme_id_rsa
Enter passphrase for /home/user/.ssh/acme_id_rsa: 

Answer 1

One simple solution listed at (and repeated by Stephen Kitt):

• https://askubuntu.com/a/843942/248166

is working for me. So at least the symptoms are fixed for me. But technically I am not exactly re-using gnome-keyring so the original question remains.

In case that helps someone else, I can now ssh from my Win10 laptop using:

$ ssh -A linux_server

Which can be saved as:

$ cat .ssh/config
Host linux_server
  ForwardAgent yes