Change DNS records on the fly

[The Doctor]

I am about to lose 2 clas C blocks from 1 provider and and 2 from another.

How can I make changes without have to go through max 512 DNS .db records?
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[Philip Paeps]

The Doctor <doc...@doctor.nl2k.ab.ca> wrote:
> I am about to lose 2 clas C blocks from 1 provider and and 2 from another.

Welcome to the 21st century! We call them /24s these days.

> How can I make changes without have to go through max 512 DNS .db records?

sed is your friend.

s/old_prefix/new_prefix/

- Philip

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Philip Paeps Please don't email any replies
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level or downhill sections.

[The Doctor]

In article <slrnga0ivc.10n...@carrot.paeps.cx>,

All at once and not one at a time.

[Giorgos Keramidas]

On Mon, 11 Aug 2008 22:26:04 +0000 (UTC), doc...@doctor.nl2k.ab.ca (The Doctor) wrote:
> In article <slrnga0ivc.10n...@carrot.paeps.cx>,
> Philip Paeps <philip...@paeps.cx> wrote:
>>The Doctor <doc...@doctor.nl2k.ab.ca> wrote:
>>> I am about to lose 2 clas C blocks from 1 provider and and 2 from
>>> another.
>>
>> Welcome to the 21st century! We call them /24s these days.
>>
>>> How can I make changes without have to go through max 512 DNS .db
>>> records?
>>
>> sed is your friend.
>>
>> s/old_prefix/new_prefix/
>

> All at once and not one at a time.

If you really need help, you should start writing more descriptive
questions. Philip was terse, but right. "All at once" means precisely
_nothing_, so if you want more detailed instructions than "use sed", now
is the time to:

* Tell us more about the current setup:

- the names of the domains

- are you are talking about 'forward' DNS from name -> address
resolution?

- where are the zone files located?

* Tell us how you want the "final" setup to look like. Careful: NOT
how you currently EXPECT to get there. Just _what_ the setup should
look after you have made the switch.

Then, it may be possible for someone else to "spoon-feed" you with a sed
script or the necessary steps. If that's not something you really very
interested in (i.e. the "spoon-feeding" part), you should at least read
the manpage of sed(1). It certainly works with multiple files.

Hint: Look at the final command-line arguments in the SYNOPSIS section
of FreeBSD sed's manpage, and then search for the `-i' option.

[Pertti Kosunen]

The Doctor wrote:
> All at once and not one at a time.

s/old_prefix/new_prefix/g