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  • Committer: Teddy Hogeborn
  • Date: 2024-11-24 00:44:25 UTC
  • Revision ID: teddy@recompile.se-20241124004425-6k3y0ir1ksyjq3c4
mandos-keygen: Show warning about old OpenSSH versions

When generating a config file snippet on the Mandos client system
using mandos-keygen, and the default ssh-keyscan checker is used, and
if the OpenSSH version is 9.8 or later, the "checker" command
generated for the config file on the Mandos server will include the
"-q" option for ssh-keyscan.  This option did not exist on ssh-keyscan
from OpenSSH older than version 9.8.  Therefore, if the Mandos
*server* is running an older version of OpenSSH, where ssh-keyscan
does not support the "-q" option, this option must be removed from the
generated "checker" setting.  Since we cannot know if this is the case
when running mandos-keygen on the Mandos client system, we print this
information as a comment above the generated "checker" setting.

* mandos-keygen: Show warning if the new "-q" options was used with
  ssh-keyscan in the generated "checker" setting.

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY TIMESTAMP "2019-08-04">
 
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<!ENTITY TIMESTAMP "2020-09-16">
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<!ENTITY % common SYSTEM "common.ent">
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%common;
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]>
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      <year>2017</year>
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      <year>2018</year>
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      <year>2019</year>
 
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      <year>2020</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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      As for <citerefentry><refentrytitle>systemd</refentrytitle
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      ><manvolnum>1</manvolnum></citerefentry> in particular, it has
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      its own <ulink
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      url="https://www.freedesktop.org/wiki/Software/systemd/PasswordAgents/"
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      >Password Agents</ulink> system.  Mandos uses this via its
 
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      url="https://systemd.io/PASSWORD_AGENTS/">Password
 
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      Agents</ulink> system.  Mandos uses this via its
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      <citerefentry><refentrytitle>password-agent</refentrytitle
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      ><manvolnum>8mandos</manvolnum></citerefentry> program, which
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      is run instead of <citerefentry><refentrytitle
 
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      ><manvolnum>8mandos</manvolnum></citerefentry> program, which is
 
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      run instead of <citerefentry><refentrytitle
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      >plugin-runner</refentrytitle><manvolnum>8mandos</manvolnum
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      ></citerefentry> when <citerefentry><refentrytitle
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      >systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>