On Tue, 2018-12-04 at 00:51 +0000, John Horne wrote:
For many years we have modified the '/etc/named.conf' file to include local settings. The disadvantage with this is of course that when bind is updated, it creates an '/etc/named.conf.rpmnew' file. We then have to determine what is new, and apply the relevant changes to our modified named.conf file.
There is, however, an '/etc/named' directory which I assumed was for local configuration settings. The main '/etc/named.conf' file makes no mention of this directory, so (I suspect) any config files in '/etc/named' would, by default, just be ignored.
As far as I can tell we could put our local configuration settings into a file in '/etc/named', but we would then, once again, have to modify '/etc/named.conf' to tell it to include config files in '/etc/named'. We would then be back at square one in that any bind update would create an 'rpmnew' file.
I admit I haven't actually tested this, but has anyone used the '/etc/named' directory and not had to modify the main '/etc/named.conf' file?
I finally got round to giving this a test. Unfortunately unless you are adding new configuration sections, or zones, then it does not work. I wanted to add some extra 'options' settings and placed them into an '/etc/named/local_named.conf' file. (The '/etc/named.conf' was modified to include this file.)
Upon starting bind/named though it complained with "/etc/named/local_named.conf:2: 'options' redefined near 'options'" because I had defined the 'options' section in my new config file, as well as it being present in the supplied default '/etc/named.conf'.
So, in order to add extra options settings, I see no way other than modifying the supplied '/etc/named.conf' file.
Note: it may well be possible to 'include' a file within the '/etc/named.conf' options section, provided that file only contained 'options' settings. In our case we also want to modify the logging section slightly, so we would need another include in the 'logging' section. Overall, we would end up modifying the '/etc/named.conf' file with include files just as much as if we just added the new options directly to it. Trying to use '/etc/named' in our case is just not worth it.
John.
-- John Horne | Senior Operations Analyst | Technology and Information Services University of Plymouth | Drake Circus | Plymouth | Devon | PL4 8AA | UK ________________________________ [http://www.plymouth.ac.uk/images/email_footer.gif]http://www.plymouth.ac.uk/worldclass
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