Suppress [EMAIL: Reverse DNS] diagnosis error

Support
1

Hi everyone!

I’d appreciate your help with a configuration issue on my Yunohost server:

My YunoHost server

Hardware: Old computer
YunoHost version: 11.0.10.2
I have access to my server : Through SSH
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no

Description of my issue

I get a diagnosis mail from Yunohost twice a day because my reverse DNS is not configured correctly for emails. However, since I don’t have a fixed IP, I can do little about this problem and would like to suppress the error message from the Yunohost command line API.

My attempts included things like

yunohost diagnosis ignore --filter 'mail summary=diagnosis_mail_fcrdns_dns_missing'
# or
yunohost diagnosis ignore --filter 'mail test=mail_fcrdns'

but I’d always get an error along the lines of

Warning: unable to retrieve string to translate with key 'mail test=mail_fcrdns is not a diagnosis category' for default locale 'locales/en.json' file (don't panic this is just a warning)
Error: mail test=mail_fcrdns is not a diagnosis category

Is it possible to disable one single test in the mail category? If yes, what is the correct command for that?

Thanks in advance!

2

Cant you go in the webadmin > Diagnosis, and click the ignore button ? :neutral_face:

3

I’ve disabled the YunoHost API and with it the webadmin panel. But if it’s doable through the webadmin, it should also be possible from the CLI, no?

4

Yes but the syntax is not trivial, hence the error you’re getting because your filter is incorrect and i’m not sure what’s the appropriate syntax …

5

Maybe

yunohost diagnosis ignore mail --filter 'test=mail_fcrdns'

or just

yunohost diagnosis ignore --filter 'test=mail_fcrdns'
6

There is something very particular going on with the reverse DNS check…

First, I tried looking up the categorization values with the diagnosis get call:

# works (in the sense of returns the current status of the check to the console):
yunohost diagnosis get mail test=mail_outgoing_port_25
yunohost diagnosis get mail test=mail_blacklist
# does not work (i.e. nothing output to the consol):
yunohost diagnosis get mail test=mail_fcrdns

I’ve been looking at the yunohost source

but did not find an obvious error. Maybe you have a hunch on where to look?

7

I think I found the problem:
The difference between the described get lookups is that the meta entry for mail_fcrdns has more than one value in the dictionary.

If yunohost diagnosis get uses the diagnosis_get function, it will call Diagnoser.get_cached_report(category, item=item) with item being the arguments it received from yunohost diagnosis get transformed into a dictionary.

Line 545 in the get_cached_report static method requires equivalence (==) of the passed item to what the cached report has as the value for the “meta” key.

This explains why it works for single criteria filter: One criterion matches the whole dictionary in the cached report “meta” value. But as soon as I only specify one of the meta keys, the lookup returns an empty dictionary. Can you double-check? I don’t have a debugable yunohost instance setup :S

8

My suspicion grew stronger after I could add the desired ignore filter with

yunohost diagnosis ignore --filter mail test=mail_fcrdns ipversion=4
9

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