Viktor,
thanks for your reply. More below.
On 03/08/2017 10:34 AM, Viktor Dukhovni wrote:
On Mar 8, 2017, at 8:16 AM, Robert Moskowitz <r...@htt-consult.com> wrote:
But this is not the point. In fact, if there is no guidance on how to
use postconf for managing master.cf, it really does not matter which
version of postfix I use. Just maintain master.cf as we always have.
All the postconf(1) command options are documented. Just type:
man postconf
to see what command options your version supports. You can also
look at:
http://www.postfix.org/postconf.1.html
And that is what I did. I saw what the options were, but no practical
examples of them in use. That is what I meant by 'guidance'. The
Postfix online manual has a lot of guidance on how to actually do things
to Postfix to get it to do many valuable things.
which documents the latest version, and does its best to list
the first release in which various features appeared. To see
the document for older releases, say 2.10, you can leverage github:
http://htmlpreview.github.io/?https://github.com/vdukhovni/postfix/blob/postfix-2.10/postfix/html/postconf.1.html
There is a nice http://www.postfix.org/postconf.5.html write up on maintaining
main.cf, but not on master.cf.
The documentation in postconf(1) should be sufficient. For 2.10 you have:
Managing master.cf:
postconf [-fMovx] [-c config_dir] [service ...]
...
-f Fold long lines when printing main.cf or master.cf
configuration file entries, for human readability.
This feature is available with Postfix 2.9 and
later.
-M Show master.cf file contents instead of main.cf
file contents. Specify -Mf to fold long lines for
human readability.
If service ... is specified, only the matching ser-
vices will be output. For example, "postconf -Mf
inet" will output all services that listen on the
network.
Specify zero or more arguments, each with a ser-
vice-type name (inet, unix, fifo, or pass) or with
a service-name.service-type pair, where service-
name is the first field of a master.cf entry.
This feature is available with Postfix 2.9 and
later.
-o name=value
Override main.cf parameter settings.
This feature is available with Postfix 2.10 and
later.
-v Enable verbose logging for debugging purposes. Mul-
tiple -v options make the software increasingly
verbose.
-x Expand $name in main.cf or master.cf parameter val-
ues. The expansion is recursive.
This feature is available with Postfix 2.10 and
later.
So, in Postfix 2.10, you can display [selected] master.cf entries
or update overrides (-o parameters) for a given service.
But -o does not actually update master.cf. That seems to be what -P
does in Postfix 2.11.
The master.cf modification features are much more extensive in
later releases.
And that is what I was looking for. I would have thought that somewhere
there would be use examples of say, adding submission support into
master.cf using postconf. I actually did find one such blog:
https://www.mind-it.info/2014/02/20/change-postfix-master-cf-postconf/
But the blogger does not state what version he used. Obviously it was
at least 2.11.
Again thank you.
