I have several Hosts in ~/.ssh/config, and they work fine from local machine, but remote machine doesn't know these Hosts.
Host A
HostName github.com
IdentityFile ~/.ssh/A_rsa
Host B
HostName github.com
IdentityFile ~/.ssh/B_rsa
Host remotemachine.com
ForwardAgent yes
From localhost:
$ ssh -T git@A
Hi A! You've successfully authenticated, ...
$ ssh -T git@B
Hi B! You've successfully authenticated, ...
From remote host:
$ ssh remotemachine
$ ssh-add -l
... both keys present ...
$ ssh -T git@B
ssh: Could not resolve hostname B: Name or service not known
$ ssh -T [email protected]
Hi A! You've successfully authenticated, ...
How to use key B on remote machine?
That said, from local machine I'm able to do ssh git@B
, but on remote machine hostname B
is not known. Seems like ssh-agent forwards only keys, but not hosts. How to make it forward hosts too?
I could create ~/.ssh/config on remote machine too, but what to put into IdentityFile?
I could use $ ssh -i KEYFILE
, but what to put into KEYFILE if keys are forwarded?