Mailing List Archive: [Feature Request] mention hostname on -v

[Feature Request] mention hostname on -v

Sep 11, 2023, 2:47 AM

Post #1 of 5 (237 views)

I've got a usecase right now where I've got to use a few
intermediate ProxyJump hosts, and it would help debugging
via -v tremendously if the debug lines would have a prefix
of the originating host, so that they can be easily associated.

The FQDN might be too long, though -- perhaps just the PID
with an additional line associating it with the host would be
a better fit?

Thanks!
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Re: [Feature Request] mention hostname on -v [ In reply to ]

djm at mindrot

Sep 11, 2023, 8:43 PM

Post #2 of 5 (237 views)

Permalink

On Mon, 11 Sep 2023, Philipp Marek wrote:

> I've got a usecase right now where I've got to use a few
> intermediate ProxyJump hosts, and it would help debugging
> via -v tremendously if the debug lines would have a prefix
> of the originating host, so that they can be easily associated.
>
> The FQDN might be too long, though -- perhaps just the PID
> with an additional line associating it with the host would be
> a better fit?

it's a bit of a hack, but you can get PID in debug messages right now
using LogVerbose=*, though you'll probably need to set it in ssh_config
if you're using ProxyJump as options from the command-line are mostly
not passed to the subordinate ssh processes.

-d
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Re: [Feature Request] mention hostname on -v [ In reply to ]

philipp at marek

Sep 11, 2023, 10:43 PM

Post #3 of 5 (237 views)

Permalink

>> I've got a usecase right now where I've got to use a few
>> intermediate ProxyJump hosts, and it would help debugging
>> via -v tremendously if the debug lines would have a prefix
>> of the originating host, so that they can be easily associated.
>>
>> The FQDN might be too long, though -- perhaps just the PID
>> with an additional line associating it with the host would be
>> a better fit?
>
> it's a bit of a hack, but you can get PID in debug messages right now
> using LogVerbose=*, though you'll probably need to set it in ssh_config
> if you're using ProxyJump as options from the command-line are mostly
> not passed to the subordinate ssh processes.

Thanks for the idea -- but that means having write access to sshd_config
and (potentially) disturbing all other users on the machines.

Well, how about the general idea of including the PID?
If it's at the end like [1234] it's okay as well,
highlighting strings in an editor is easy enough.
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Re: [Feature Request] mention hostname on -v [ In reply to ]

martin.hecht at hlrs

Sep 12, 2023, 5:45 AM

Post #4 of 5 (237 views)

Permalink

Hi,

On 12/09/2023 07:43, Philipp Marek wrote:
>>> I've got a usecase right now where I've got to use a few
>>> intermediate ProxyJump hosts, and it would help debugging
>>> via -v tremendously if the debug lines would have a prefix
>>> of the originating host, so that they can be easily associated.
>>>
>>> The FQDN might be too long, though -- perhaps just the PID
>>> with an additional line associating it with the host would be
>>> a better fit?
>>
>> it's a bit of a hack, but you can get PID in debug messages right now
>> using LogVerbose=*, though you'll probably need to set it in ssh_config
>> if you're using ProxyJump as options from the command-line are mostly
>> not passed to the subordinate ssh processes.
>
> Thanks for the idea -- but that means having write access to sshd_config
> and (potentially) disturbing all other users on the machines.

Note that Damien wrote ssh_config[1], not sshd_config.
You can have a ~/.ssh/config to override system defaults.

Best regards, Martin

[1] https://man.openbsd.org/ssh_config#LogVerbose

Re: [Feature Request] mention hostname on -v [ In reply to ]

philipp at marek

Sep 12, 2023, 7:46 AM

Post #5 of 5 (237 views)

Permalink

> Note that Damien wrote ssh_config[1], not sshd_config.
> You can have a ~/.ssh/config to override system defaults.

Ah yeah, right. Sorry, I misread.
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