Then you should be able to just do: rsync -azv foo/ C. Or, using ProxyJump for OpenSSH >= v 7.3: Host C Prox圜ommand ssh -A PROXYHOST -p 22 -W %h:%p I can still connect with a 2-step login, i. If I'm not VPN'd, then it doesn't work: channel 0: open failed: administratively prohibited: open failed stdio forwarding failed kexexchangeidentification: Connection closed by remote host Connection closed by UNKNOWN port 65535. Specifically, add something like this: Host C If I'm VPN'd to my office, I can use ssh YYYY to log on with one step. If by chance you don't have a new enough ssh version (>= 5.3, IIRC), you can use netcat instead of -W option to ssh: rsync -azv -e 'ssh -o "Prox圜ommand ssh -A PROXYHOST nc %h %p"' foo/ dest./foo/įinally, as noted in comments already, you can put the Prox圜ommand into your $HOME/.ssh/config file so you don't have to have such a complicated command line. According to ssh man page -J / ProxyJump works in the following way: Connect to the target host by first making a ssh connection to the jump host described by destination and then establishing a TCP forwarding to the ultimate destination from there. Note that I'm using -A (agent forwarding) but it should also work with password authentication if you don't use keys, and, of course, you can replace proxy with B and dest with C in your example. So I've tried this: ssh -J -i /path/proxy.pem userproxyhost -i /path/target. I understand that the syntax looks like this: ssh -J A B But I need to use key files for both connections. I'm trying to use the -J flag to do that. Or, if your version of ssh is new enough (OpenSSH >= v7.3), you can use the -J ( ProxyJump) option rsync -azv -e 'ssh -A -J foo/ dest./foo/ I need to establish a connection to a remote server via proxy jump. I DISCOURAGE using passphrase-less ssh keys ANYWHERE, and especially on the PROXYHOST. Jump to via: sshproxyserver Host sshserver HostName sshserver ProxyJump sshproxyserver. In my examples, I assumed an ssh key on your localhost that you use ssh-agent forwarding to avoid password prompts. To access servers that are accessible over an SSH proxy you can use the following command. Since the latter includes my answer, but no answer was accepted, I'll repeat it here.Īs you noted, you can use rsync's -e | -rsh option, but it's going to be a bit more complicated: rsync -azv -e 'ssh -o "Prox圜ommand ssh -A PROXYHOST -W %h:%p"' foo/ dest./foo/ An SSH jump server is a proxy standing between clients and the rest of the SSH fleet. ProxyJump (or Prox圜ommand) directives have no influence over password prompts. In this session, netcat will be started on the jump host and connect to the target host. This question is essentially answered elsewhere, including here for scp and here for rsync. SSH will first run the proxy command on the client machine, which in turn will invoke another inner SSH client establishing a session to the jump host.
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