Re: match unknown rDNS
On Wed, May 29, 2019 at 09:54:36AM +0200, Pierre-Edouard wrote:
>
> Le 26/05/2019 ?? 17:22, Gilles Chehade a ??crit??:
> > On Sun, May 26, 2019 at 09:53:46AM +0200, Pierre-Edouard wrote:
> > > Hi All,
> > >
> > Hi,
> >
> >
> > > I am currently running OpenSMTPD on OpenBSD 6.5 GENERIC.MP#0 amd64
> > >
> > > I am trying to "filter" connexions coming from hosts that don't have any
> > > rdns defined.
> > > Such hosts appear as in the logs.
> > >
> > > I've tried the following without any results :
> > >
> > >
> > > table bots {"NXDOMAIN", "\" , ".*unknown.*", "^$" }
> > > match from rdns regex for any reject
> > >
> > > but this rule never matches and hosts without rDNS are still able to send
> > > me
> > > mail :(
> > >
> > > Any ideas ?
> > >
> > the 'from rdns' criteria will fail to match if the client doesn't have a
> > reverse dns, so a way to catch them would be:
> >
> > match !from rdns regex '^.*$' [...]
> >
> > i'll have a look at how to extend the criteria so we can do:
> >
> > match !from rdns [...]
> >
> > but this is not the highest thing in my prio list right now :-)
> >
> >
> Thanks for your answer !
>
> Unfortunately the workaround above does not work, it does not match with no
> rDNS hosts :-(
>
okie dokie, can you fill a feature request on our tracker at github ?
i'll take care of it soon
--
Gilles Chehade @poolpOrg
https://www.poolp.org tip me: https://paypal.me/poolpOrg
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Re: match unknown rDNS
Le 26/05/2019 à 17:22, Gilles Chehade a écrit :
On Sun, May 26, 2019 at 09:53:46AM +0200, Pierre-Edouard wrote:
Hi All,
Hi,
I am currently running OpenSMTPD on OpenBSD 6.5 GENERIC.MP#0 amd64
I am trying to "filter" connexions coming from hosts that don't have any
rdns defined.
Such hosts appear as in the logs.
I've tried the following without any results :
table bots {"NXDOMAIN", "\" , ".*unknown.*", "^$" }
match from rdns regex for any reject
but this rule never matches and hosts without rDNS are still able to send me
mail :(
Any ideas ?
the 'from rdns' criteria will fail to match if the client doesn't have a
reverse dns, so a way to catch them would be:
match !from rdns regex '^.*$' [...]
i'll have a look at how to extend the criteria so we can do:
match !from rdns [...]
but this is not the highest thing in my prio list right now :-)
Thanks for your answer !
Unfortunately the workaround above does not work, it does not match with
no rDNS hosts :-(
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Re: match unknown rDNS
On Sun, May 26, 2019 at 09:53:46AM +0200, Pierre-Edouard wrote:
> Hi All,
>
Hi,
> I am currently running OpenSMTPD on OpenBSD 6.5 GENERIC.MP#0 amd64
>
> I am trying to "filter" connexions coming from hosts that don't have any
> rdns defined.
> Such hosts appear as in the logs.
>
> I've tried the following without any results :
>
>
> table bots {"NXDOMAIN", "\" , ".*unknown.*", "^$" }
> match from rdns regex for any reject
>
> but this rule never matches and hosts without rDNS are still able to send me
> mail :(
>
> Any ideas ?
>
the 'from rdns' criteria will fail to match if the client doesn't have a
reverse dns, so a way to catch them would be:
match !from rdns regex '^.*$' [...]
i'll have a look at how to extend the criteria so we can do:
match !from rdns [...]
but this is not the highest thing in my prio list right now :-)
--
Gilles Chehade @poolpOrg
https://www.poolp.org tip me: https://paypal.me/poolpOrg
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match unknown rDNS
Hi All,
I am currently running OpenSMTPD on OpenBSD 6.5 GENERIC.MP#0 amd64
I am trying to "filter" connexions coming from hosts that don't have any
rdns defined.
Such hosts appear as in the logs.
I've tried the following without any results :
table bots {"NXDOMAIN", "\" , ".*unknown.*", "^$" }
match from rdns regex for any reject
but this rule never matches and hosts without rDNS are still able to
send me mail :(
Any ideas ?
Cheers,
Pywy
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