2 amavisd instances

Hello fellow listers

Hats off to the devs around here for a great piece of
software!


We are involved in deploying some new servers and we are
planning to add
a second instance of Postfix/Amavisd-new to our existing
instance.

My question is this:

Do we need to run another full instance of amavisd-new for
the new
instance of Postfix? Or can I reuse the current instance
with some
modifications?

TiA
Dave

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>My question is this:
> 
> Do we need to run another full instance of amavisd-new
for 
> the new instance of Postfix? Or can I reuse the current

> instance with some modifications?
> 

No, you can use the same instance listening on different
ports and policy
banks.

See : 
   - the amavis.conf-sample file
   - http://www.ijs.si/software/amavisd/amavisd-new-do
cs.html#pbanks

Also Gary V's write up which describes bypassing amavis also
gives good
examples on the use of policy banks:

  - htt
p://www200.pair.com/mecham/spam/bypassing.html


MrC


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Dave,

> > Do we need to run another full instance of
amavisd-new for
> > the new instance of Postfix? Or can I reuse the
current
> > instance with some modifications?
>
> No, you can use the same instance listening on
different ports
> and policy banks.

Right. Just make sure the number of amavisd child processes
is a sum of maxproc from both Postfix services feeding
amavisd.

  Mark

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Very cool. I use policy banks now. They are the murkiest
parts of
amavisd-new so reading more information about them will be
awesome.

Thanks!


On Mon, 2007-05-21 at 21:36 -0700, MrC wrote:
> >My question is this:
> > 
> > Do we need to run another full instance of
amavisd-new for 
> > the new instance of Postfix? Or can I reuse the
current 
> > instance with some modifications?
> > 
> 
> No, you can use the same instance listening on
different ports and policy
> banks.
> 
> See : 
>    - the amavis.conf-sample file
>    - http://www.ijs.si/software/amavisd/amavisd-new-do
cs.html#pbanks
> 
> Also Gary V's write up which describes bypassing amavis
also gives good
> examples on the use of policy banks:
> 
>   - htt
p://www200.pair.com/mecham/spam/bypassing.html
> 
> 
> MrC
> 


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Dave,

> Very cool. I use policy banks now. They are the
murkiest parts of
> amavisd-new so reading more information about them will
be awesome.

Most information about new features is written in
RELEASE_NOTES
when a new feature is first introduced.

There are several references to policy banks in release
notes,
start reading them bottom-up, beginning with
amavisd-new-2.0
when it was introduced.

  Mark

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Mark wrote:

> Dave,

>> Very cool. I use policy banks now. They are the
murkiest parts of
>> amavisd-new so reading more information about them
will be awesome.

> Most information about new features is written in
RELEASE_NOTES
> when a new feature is first introduced.

> There are several references to policy banks in release
notes,
> start reading them bottom-up, beginning with
amavisd-new-2.0
> when it was introduced.

>   Mark

And of course:
http://www.ijs.si/software/amavisd/amavisd-new-do
cs.html#pbanks
Also, more examples of the format are in amavisd.conf-sample
and
the bottom of amavisd.conf-default shows a list of the
variables
that may be referenced in a policy bank.

Gary V



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