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ssh -t -o ProxyCommand='ssh -i ~/.ssh/id_rsa opc@0.0.0.0 -W %h:%p %r' -i ~/.ssh/id_rsa opc@0.0.0.0

ssh -t -o ProxyCommand='ssh -i ~/.ssh/id_rsa opc@<publiIP> -W %h:%p %r' -i ~/.ssh/id_rsa opc@privateIP

From the first command I am getting output 1 :

Permission denied (publickey,gssapi-keyex,gssapi-with-mic). ssh_exchange_identification: Connection closed by remote host

From the second command I am getting output 2 :

~/.ssh/id_rsa.pub not found

Please help me to resolve this. I have created RSA public and private keys using putty.

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The first version looks hinky, with the 0.0.0.0 being a non-valid IP address. But perhaps that's a cloudy thing?

The second version looks better. Run it with "-v" before the "-t" and it will show you the enterpolated proxy command. Something like:

debug1: Executing proxy command: exec ssh -i ~/.ssh/id_rsa opc@<publiIP> -W privateip:22 opc

Now, run the command after the word "exec":

ssh -i ~/.ssh/id_rsa opc@<publiIP> -W privateip:22 opc

and see what error it shows. That'll tell you what you need to fix. I'm guessing you don't have a private key in the file ~/.ssh/id_rsa.pub.

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