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Toby
Asked: 2015-07-03 06:53:26 +0800 CST

Backup & restore of SSH keys?

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I have a gitlab install on a ubuntu 14.04 server and am moving to to another server (same IP), also Ubuntu 14.04. I would like to transfer the host keys so that users can keep using the same keys they have.

I have copied and transferred the /etc/ssh dir but am not sure I should replace the entire contents of the same directory on the new server or just some specific file(s)?

The directory contains:

  • moduli
  • ssh_config
  • ssh_config.lwidentity.orig
  • sshd_config
  • sshd_config.lwidentity.orig
  • ssh_host_dsa_key
  • ssh_host_dsa_key.pub
  • ssh_host_ecdsa_key
  • ssh_host_ecdsa_key.pub
  • ssh_host_ed25519_key
  • ssh_host_ed25519_key.pub
  • ssh_host_rsa_key
  • ssh_host_rsa_key.pub
  • ssh_import_id.
14.04

1 Answers

  1. Best Answer

    So I copied in all of the ssh_host_* files (with and without .pub) and that seemed to do the trick.

    I made sure the permissions and ownership were as indicated by the following answers:

    https://superuser.com/a/532079/185661

    https://askubuntu.com/a/17103/333103

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