Re: [cobalt-users] New IP Block - what the best way to add these

[Greg Hewitt-Long <cobaltusers@xxxxxxxxxxxxxxxxxxx>]

>----- Original Message -----
>From: "Chae"
>
>> 1. Change IP address of one of the main DNS servers IP's to the new IP
>
>Actually, the first thing to do would be to decrease the TTL for all A
>records involved.  By doing this you create a situation where name service
>would only need a short period of time to 'catch up' as name servers across
>the net reload data for your zones when requested to do so.  I tend to use a
>TTL of 300 (5 minutes) in situations like these and it has worked well.
>
>> 2. Ensure there is a virtual site created or changed so the IP binds via
>> the GUI
>
>By this do they mean to bind both the old and new IPs to said sites?
>
>> 3. Then with one of the DNS servers using a new IP and a old IP begin to
>> make changes to customers DNS Records and site configs
>
>This looks like they're asking to have on IP on one name server and the new
>IP on the other name server.  All this will do is break DNS for your zones.
>
>> 4. When sites procreate and start using new IP's then change the remaining
>> Name servers IP to the new IP allocated.
>
>Proicreating sites?  That's an interesting image.
>
>> The way I see it going is to do the following:-
>>
>> 1. Update one of the servers domain name "host records" i.e
>> ns2.servername.com at the registrars first of all with the new IP
>> 2. Once procreated then change over the IP address of the DNS server via
>> the RAQ3's GUI
>> 3. Change any virtual sites DNS/IP if using same IP, if not create a dummy
>> site using the IP so the IP binds
>> 4. Then with one of the DNS servers using a new IP and a old IP begin to
>> make changes to customers DNS Records and site configs
>> 5. When sites procreate and start using new IP's then change the remaining
>> "host record" at the registrars.
>> 6. Change the remaining Name servers IP to the new IP allocated via the
>GUI
>> after the changes at the registrar has taken place.
>
>Re: registrar changes, this should be the *FIRST* thing you do.


and allow it to thoroughly settle for 72 hours or MORE... that would be MY advice.  Moving servers from data-center to data-center (and thus renumbering them) was a cakewalk when we did this.   It simply can NOT be rushed.

>  Making all
>the changes on your end and the registrar's simultaneously will bring the
>world crashing down on your head.
>
>But before I give my suggestion for doing this, I have to ask: is it
>possible to bind more than one IP to the same site in Cobalt's OS?


Not using the GUI to my knowledge - I'd LOVE to know what can be done to achieve this on a single RAQ.
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