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Bug 1665339 - Messy string in hostnamectl "Operating System" value
Summary: Messy string in hostnamectl "Operating System" value
Keywords:
Status: CLOSED WORKSFORME
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: openssh
Version: 8.0
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: rc
: 8.0
Assignee: Jakub Jelen
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-01-11 03:22 UTC by Yuxin Sun
Modified: 2019-01-31 10:26 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-01-14 09:14:33 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
hostnamectl output (52.67 KB, image/png)
2019-01-11 03:23 UTC, Yuxin Sun 		no flags Details
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Description Yuxin Sun 2019-01-11 03:22:22 UTC 
Description of problem:
Messy string when running hostnamectl through ssh: 
Operating System: ]8;;https://www.redhat.com/Red Hat Enterprise Linux 8.0 Beta (Ootpa)]8;;

Observed in Azure/Hyper-V platform
Only exists through ssh. Works well in console.
Works well in RHEL-7.6.

Version-Release number of selected component (if applicable):
openssh-7.8p1-4.el8.x86_64

RHEL Version:
RHEL-8.0-20181220.1

How reproducible:
100%

Steps to Reproduce:
Login through ssh. Run "hostnamectl"

Actual Result:
Operating System: ]8;;https://www.redhat.com/Red Hat Enterprise Linux 8.0 Beta (Ootpa)]8;;

Expect Result:
Operating System: Red Hat Enterprise Linux 8.0 Beta (Ootpa)

Additional Info:
Comment 1 Yuxin Sun 2019-01-11 03:23:58 UTC 
Created attachment 1519963 [details]
hostnamectl output
Comment 2 Jakub Jelen 2019-01-11 14:09:46 UTC 
This sounds like some attempt to make a hyperlink. It is described for example here:

https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda

I can not reproduce it with my virtualization from Terminator (does not support it). If I connect from Gnome Terminal, it works as expected (link is visible).

I assume that in your case, your terminal emulator signalizes support for this, so systemd server these special characters, but your terminal does not know how to interpret the hyperlinks. Please, clarify at least what terminal emulator are you using, what version and on what platform in the client. I do not think this has anything to do with ssh at all.
Comment 3 Yuxin Sun 2019-01-14 08:27:52 UTC 
Hi,

I'm using the GNOME Terminal 3.18.1 using VTE version 0.42.1 on Fedora23. What other information do you need? Thanks!
Comment 4 Jakub Jelen 2019-01-14 09:14:33 UTC 
That will probably be the problem. Fedora 23 is EOL for over two years now and therefore this is nothing that we could support. The same works fine with Fedora 29 I am running so this is not an issue in RHEL8 end.

Please update to something newer. If you still can reproduce it on some supported platform (RHEL6, RHEL7), please reopen this bug on systemd.
Comment 5 Yaju Cao 2019-01-31 09:52:03 UTC 
I can reproduce this issue with RHEL8 on both Hyper-V and ESXi. I use Gnome Terminal 3.22.1, RHEL7.5 for ssh connection.
Comment 6 Jakub Jelen 2019-01-31 10:26:16 UTC 
Then, it is a bug of RHEL7.5 gnome terminal (missing support for half-baked feature) or RHEL8 systemd hostnamectl (throwing half-baked features to unsupported terminal emulators), but certainly it has nothing to do with openssh. Feel free to reassign it to either one if you believe it is either fault.
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