Deprecated sshd configurations when upgrading to ubuntu 20.04
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Description
While working on upgrading our salt configurations for ubuntu 20.04, I noticed these outputs in the logs from sshd:
Jul 12 12:58:40 salt-master.vagrant.psf.io sshd[1220613]: rexec line 65: Deprecated option UseLogin
Jul 12 12:58:40 salt-master.vagrant.psf.io sshd[1220613]: rexec line 66: Deprecated option UsePrivilegeSeparation
Jul 12 12:58:40 salt-master.vagrant.psf.io sshd[1220613]: rexec line 80: Deprecated option RhostsRSAAuthentication
Jul 12 12:58:40 salt-master.vagrant.psf.io sshd[1220613]: Connection from 172.17.0.1 port 60496 on 172.17.0.2 port 22 rdomain ""
Jul 12 12:58:40 salt-master.vagrant.psf.io sshd[1220613]: reprocess config line 80: Deprecated option RhostsRSAAuthentication
I'm not sure what the best approach is, opening this issue to decide how to address this in our configuration.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by inspecting salt/ssh/configs/sshd_config.jinja, especially the configuration corresponding to the deprecated options reported on lines 65, 66, and 80. Determine how those options should be handled for Ubuntu 20.04; done means the configuration no longer produces the reported deprecated-option messages when sshd is run.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ubuntu
- Domain
- infrastructure
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100