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A comment on OpenSSH 7.3 released. Parent comment

Re:OpenSSH 7.3 released by idsout on Monday August 01, 2016 @12:08PM (#12203516)
I think ProxyJump is a nice way to explicitly state that you want to jump hosts, but this is currently possible with ProxyCommand, such as the following...

  Host appserver1
    ProxyCommand ssh bastionhost.com -W %h:%p
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Re:OpenSSH 7.3 released by mineo on Monday August 01, 2016 @12:24PM (#12203669)
The announcement already mentions that ProxyJump is meant to be a simplified version of indirection, not a completely new feature.
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Re:OpenSSH 7.3 released by jlgaddis on Monday August 01, 2016 @06:41PM (#12206628) 

  commit ed877ef653847d056bb433975d731b7a1132a979
  Author: [email protected] <[email protected]>
  Date:   3 weeks ago

      upstream commit
    
      Add a ProxyJump ssh_config(5) option and corresponding -J ssh(1)
      command-line flag to allow simplified indirection through a
      SSH bastion or "jump host".
    
      These options construct a proxy command that connects to the
      specified jump host(s) (more than one may be specified) and uses
      port-forwarding to establish a connection to the next destination.
    
      This codifies the safest way of indirecting connections through SSH
      servers and makes it easy to use.
    
      ok markus@
    
      Upstream-ID: fa899cb8b26d889da8f142eb9774c1ea36b04397
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Re:OpenSSH 7.3 released by matt_wulfeck on Sunday August 07, 2016 @12:18PM (#12242471)
That only sends commands via the proxy host. Jump allows you to connect to remote hosts via the jump host intermediary.
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