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From c34fe9a52abdde05cb31c5bd2c99237652e1b0dc Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Mon, 11 Jul 2022 09:01:56 +0200
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Subject: [PATCH] input-xen: sync "-ip" limitations language from input-vmware
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manual
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My analysis in <https://bugzilla.redhat.com/show_bug.cgi?id=1854275#c33>
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was partially wrong; I had missed that for the xen+ssh transport, the
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client-side libvirt library launches a naked "ssh" utility, underneath
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"Libvirt.Connect.connect_auth":
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setup [input/input_xen_ssh.ml]
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Libvirt.Connect.connect_auth
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no effect of "-ip"
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Nbdkit_ssh.create_ssh [input/nbdkit_ssh.ml]
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starts nbdkit with the ssh
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plugin honoring "-ip"
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Which requires a password just the same, and ignores "-ip" just the same.
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Recommend the ssh agent in the docs.
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Fixes: 46298c6514710013c59828b4933f0b3b1a354566
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1854275
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2062360
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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Message-Id: <20220711070157.5399-2-lersek@redhat.com>
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Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
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(cherry picked from commit ae067a9ce0eb5631940a8cc5dcc5ee056903276b)
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---
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docs/virt-v2v-input-xen.pod | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/docs/virt-v2v-input-xen.pod b/docs/virt-v2v-input-xen.pod
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index ad5772de..80ad94f7 100644
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--- a/docs/virt-v2v-input-xen.pod
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+++ b/docs/virt-v2v-input-xen.pod
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@@ -32,6 +32,11 @@ server to the Xen host. For example:
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$ ssh root@xen.example.com
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[ logs straight into the shell, no password is requested ]
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+Note that support for non-interactive authentication via the I<-ip>
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+option is incomplete. Some operations remain that still require the
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+user to enter the password manually. Therefore ssh-agent is recommended
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+over the I<-ip> option. See L<https://bugzilla.redhat.com/1854275>.
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+
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With some modern ssh implementations, legacy crypto policies required
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to interoperate with RHEL 5 sshd are disabled. To enable them you may
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need to run this command on the conversion server (ie. ssh client),
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