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Bug 1377283

Summary: [RFE]Should add ssh-agent info for virt-viewer -c connecting in manual page
Product: Red Hat Enterprise Linux 7 Reporter: mxie <mxie>
Component: virt-viewerAssignee: Virt Viewer Maint <virt-viewer-maint>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: low Docs Contact:
Priority: medium    
Version: 7.3CC: cfergeau, dblechte, juzhou, kuwei, mtessun, mzhan, pgrunt, rbalakri, tzheng, xiaodwan
Target Milestone: rcKeywords: FutureFeature
Target Release: 7.4   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: virt-viewer-5.0-1.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-01 15:04:11 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
virt-viewer.log none

Description mxie@redhat.com 2016-09-19 11:30:01 UTC
Created attachment 1202452 [details]
virt-viewer.log

Description of problem:
[RFE]Should add ssh-agent info for virt-viewer -c connecting in manual page 

Version-Release number of selected component (if applicable):
virt-viewer-2.0-12.el7.x86_64

How reproducible:
100% 

Steps to Reproduce:
1.Prepare a linux guest with spice+qxl mode and there is service spice-vdagentd running in guest on hostA
# virsh dumpxml rhel6.7withcdrom
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0' state='connected'/>
      <alias name='channel0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <graphics type='spice' port='5902' autoport='yes' listen='127.0.0.1'>
      <listen type='address' address='127.0.0.1'/>
    </graphics>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>



2.Don't configure ssh-agent for hostA on hostB and connect the guest of hostA at hostB
# virt-viewer -c qemu+ssh://10.66.4.242/system rhel6.7withcdrom

** (virt-viewer:24537): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-LlBTlBBNvS: Connection refused
root.4.242's password: 
root.4.242's password: 
root.4.242's password: 
root.4.242's password: root.4.242's password: 
(virt-viewer:24537): GSpice-WARNING **: Warning no automount-inhibiting implementation available

3.There are many problems using step3 to open guest console without configure ssh-agent on hostB , such as:the mouse and keyboard can't be used in guest ,the guest console has no graphic after connecting sometimes and the terminal couldn't be used after closing virt-viewer as below(can't input any word)
# virt-viewer -c qemu+ssh://10.66.4.242/system rhel6.7withcdrom

** (virt-viewer:24537): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-LlBTlBBNvS: Connection refused
root.4.242's password: 
root.4.242's password: 
root.4.242's password: 
root.4.242's password: root.4.242's password: 
(virt-viewer:24537): GSpice-WARNING **: Warning no automount-inhibiting implementation available

(virt-viewer:24537): GSpice-WARNING **: incomplete link header (0/16)

(virt-viewer:24537): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed

(virt-viewer:24537): GSpice-WARNING **: channel_connect: channel setup incomplete

(virt-viewer:24537): GSpice-WARNING **: incomplete link header (0/16)

(virt-viewer:24537): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed

(virt-viewer:24537): GSpice-WARNING **: channel_connect: channel setup incomplete
[root@localhost Desktop(keystone_admin)]# 

Connection closed by 10.66.4.242
Connection closed by 10.66.4.242
bash: A: command not found...
[root@localhost Desktop(keystone_admin)]# bash: A: command not found...
[root@localhost Desktop(keystone_admin)]# 
** (virt-viewer:24646): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-LlBTlBBNvS: Connection refused
(virt-viewer:24646): virt-viewer-DEBUG: connecting ...
(virt-viewer:24646): virt-viewer-DEBUG: Opening connection to libvirt with URI qemu+ssh://10.66.4.242/system
(virt-viewer:24646): virt-viewer-DEBUG: Add handle 6 1 0x1b34e00
root.4.242's password: 
root.4.242's password: 


4.Could solve all problems of step3 if setting ssh-agent on hostB and then do step2 again, but there is no info about how to configure ssh-agent before doing virt-viewer -c qemu+ssh in virt-viewer manual page 
# man virt-viewer |grep -i ssh-agent
# 


Actual results:
As above description

Expected results:
Should add ssh-agent info for virt-viewer -c connecting in manual page ,then customer will know how to solve the problem which maybe met in step3


Additional info:

Comment 2 Christophe Fergeau 2016-12-06 13:17:38 UTC
Pushed in git upstream

Comment 6 Xiaodai Wang 2017-03-20 07:37:25 UTC
I verified it with virt-viewer-5.0-2.el7.x86_64 and below examples are added in manual page.

       To connect to a remote host using SSH, lookup the guest config and then make a tunnelled connection of the console

          virt-viewer --connect qemu+ssh://root/system demo

       When using a SSH tunnel to connect to a SPICE console, it's recommended to have ssh-agent running to avoid getting multiple authentication prompts.

So move the bug from ON_QA to VERIFIED.

Comment 7 errata-xmlrpc 2017-08-01 15:04:11 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:1849