Bug#555664: closed by Marco d'Itri <md at linux.it> (Bug#555664: fixed in netbase 4.38)

[Klaus Ethgen]

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Hi,

Am Mo den  7. Dez 2009 um 18:37 schrieb Henrique de Moraes Holschuh:
> On Mon, 07 Dec 2009, Klaus Ethgen wrote:
> > On Sun, Dec 06, 2009 at 05:57:10PM +0000, Debian Bug Tracking System wrote:
> > >    * etc-services: added sieve (4190/tcp).
> > >    * etc-services: removed sieve (2000/tcp). (Closes: #555664)
> > 
> > Uh, that's a very bad idea! managesieve is using port 2000 for long time
> > now. To change it in service file ends in clients not able anymore to
> 
> http://www.iana.org/assignments/port-numbers

I believe that. However, the reality is not covered by IANA in that
case.

> There is no kind way to fix this.  It was a _very_ foolhardy move to have
> managesieve/timsieved on port 2000, instead of requesting an IANA allocation
> from day one.

Right.

> But that mistake is in the past, and it is too late to fix it.

Well, just allocate the port to two applications would help. But I do
not know if that is possible.

> Sieve belongs on port 4190, and worse, something in widespread use needs
> port 2000, which IANA says belongs to it.  So Sieve gets evicted.  It *is*
> that simple.

As I was telling, that is not what the reality is using.

> OTOH, I do think we will need to make this a lot more public, as it *will*
> break just about every professional cyrus install I know of (since everyone
> adds a sieve frontend of some sort).

True

> > That change make debian incompatible to all managesieve installations
> > out there!
> 
> Everyone will have to move to the IANA-allocated port.

It is easy for my small world to do that but very hard to force the rest
of the world to do the same!

> But, as I said, I think we will need to publish this problem widely.

This has to be cried out as the problem will tangent DAUs (I do not know
the abbreviation for that in english).

> And you *are* free to tell cyrmaster to listen to port 2000, you know.

True. All installations I know about use port 2000 for sive. However not
only cyrus is using sieve than also dovecot.

Regards
   Klaus Ethgen
- -- 
Klaus Ethgen                            http://www.ethgen.de/
pub  2048R/D1A4EDE5 2000-02-26 Klaus Ethgen <Klaus at Ethgen.de>
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