On 08Dec2016 12:04, ProPAAS DBA <dba@xxxxxxxxxxx> wrote:
I want to copy files from server C to my laptop, I have access to server C
via:
laptop --> ssh to server B (the jumpbox)
then
server B --> ssh to server C
I added an ssh config like this (.ssh/config in my home dir on my laptop):
Host serverB
HostName jumpbox.clientA.aws.com
Host serverC
ProxyCommand ssh -q serverB nc -q0 serverC -db 22
I just write this as:
ProxyCommand ssh serverB nc serverC 22
However when I tried this from my laptop:
ssh myuser@serverC
I get prompted for my user on serverB, enter the pw but it never accepts it:
$ ssh myuser@serverC
jsmith@xxxxxxxxxxxxxxxxxxxxxxx's password:
jsmith@xxxxxxxxxxxxxxxxxxxxxxx's password:
jsmith@xxxxxxxxxxxxxxxxxxxxxxx's password:
I notice that I'm trying to login as the jump box user (myuser) but
i'm prompted for the laptop user I'm logged in as (jsmith).
You want a User setting in your serverB clause:
Host serverB
User myuser
HostName jumpbox.clientA.aws.com
Re keys: they will make your life easier, and are more secure. First make this
work with passwords to get it debugged, but ssh keys are very much a better
approach. Passwords are usually very breakable. Avoid them. Make yourself a
keypair with "ssh-keygen" on your laptop, and add the public half to serverB
and serverC's .ssh/authorized_keys files. Start an ssh-agent on your laptop and
add your key to it. Then you won't be troubled with passwords again. (And you
can _revoke_ password access to servers B and C, securing them further.)
Anyway, try the abve and let us know where you end up.
Cheers,
Cameron Simpson <cs@xxxxxxxxxx>
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