how can i login the third server thought the second server did not not have the private key

[walkerxk1]

i have three servers:

server A:

have the public key and the private key

server B

have the public key

server C

have the public key.

i want to login from A to B and then login from B to C.

i have config ForwardAgent to yes both on server A and server B.

 

[palica]

https://developer.github.com/v3/guides/using-ssh-agent-forwarding/

especially check the server config not overriding your user config (AllowAgentForwarding, ForwardAgent)

[walkerxk1]

thanks, it works.