On 20/03/2024 13:17, Viktor Dukhovni via Postfix-users wrote:
> On Wed, Mar 20, 2024 at 01:42:16PM +0100, Ralf Hildebrandt via Postfix-users
> wrote:
>> Hi!
>>
>> I wonder if this is possible:
>>
>> If a PCRE/regexp style map is triggering, it can be quite hard to
>> find out WHICH pattern actually caused the action.
>>
>> So maybe postmap (when invoked with "-b", "-h" or "-q key") could emit
>> which regular expression (or which line it was in) actually matched.
>>
>> Yes, I could give all my regular expressions patterns a unique RHS or
>> find the regular expressions by divide-et-impera, but I'm being lazy.
> With bash <(command) inline file syntax, make the RHS unique on the fly:
>
> $ keystr=...
> $ remap=/etc/postfix/...
> $ postmap -q "$keystr" pcre:<(perl -pe 's/$/ LINE $./ unless
> m{^(if|endif|#)?\s}' "$remap")
>
> Better yet, don't be lazy, include a fingerprint string in your RHS
> reject rule values.
Postscreen doesn't have the option of unique RHS fingerprints; nonetheless, it
would useful to see which (of several)
ACLs was rejecting an incoming connection.
Allen C
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