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Re: Resolve and purging


From: Chip Seraphine
Subject: Re: Resolve and purging
Date: Fri, 9 Jan 2004 09:59:22 -0600
User-agent: KMail/1.5

Cool (he says, kicking himself).

The "resolve:" documentation should probably reference this feature, then, 
since it implies that this functionality is not available.  (It fooled me, 
anyway.)

>From http://www.cfengine.org/docs/cfengine-Reference.html#resolve:

"Note that the resolve action does not delete anything from the file 
/etc/resolv.conf. It adds nameservers which do not previously exist and 
reorders the lines of servers which do exist. "

I would recommend amending this to:

"Note that the resolve action does not delete anything from the file 
/etc/resolv.conf unless the EmptyResolveConf variable is set to 'true' . It 
adds nameservers which do not previously exist and reorders the lines of 
servers which do exist. "

On Friday 09 January 2004 05:42, you wrote:
> http://www.cfengine.org/docs/cfengine-Reference.html#emptyresolvconf
>
> On 25 Nov, Chip Seraphine wrote:
> > The docs list this as a feature, so I'm sending this grumble to help-
> > instead of bugs-.
> >
> > The resolve: section really needs some sort of purge attribute.  The
> > syntax of it make it very nice for maintaining the resolver, but it's
> > inability to remove lines make it impractical; you end up having to use
> > editfiles: or copy: instead.  Editfiles is clumsy for maintaining entire
> > files and copy: isn't a good choice when your basic assumption is that
> > your network configuration is hosed.
> >
> > Before I go about writing/submitting a patch with a 'PurgeResolver'
> > variable, is there a known reason why it (currently) won't delete lines? 
> > I agree that it is reasonable default behavior, but making it mandatory
> > severely limits the usefulness of resolve: to environments where old DNS
> > servers never get decommissioned, nobody every makes typos, DNSs are
> > never re-IP'd, etc.  This makes me think that the thinking behind this
> > limitation is grounded in reasons other than technical, so I'd like to
> > get some clarification lest I submit a patch that will just be shot
> > down....
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Help-cfengine mailing list
> > address@hidden
> > http://mail.gnu.org/mailman/listinfo/help-cfengine
>
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