Re: [cobalt-users] propagation

["Michael Zimmermann" <zim@xxxxxxxx>]

----- Original Message -----
From: "Debbie Doerrlamm" <wkdwich@xxxxxxxxxxxx>
> >> I have a vsite set up on the shared IP# and now they want SSL. If I
move
> >> them over to their own IP# what is the propagation time involved here??
I
> >> would think it would be almost immediate.. is that correct??
> >
> >Depends on your DNS' TTL settings; it could take up to 24 hours with the
> >raq2's default.
>
> The RaQ3 is also set to 24 hours.. but gee.. should I not be seeing the
> site as it sits from the shared IP while I wait for this 24 hour period to
> pass?? And should I not be able to pull up the site via the new IP# now??

Well Debbie,
 you might have a period of up to 24 hours (the TTL of the DNS entries
of your site), where different customers either get the old or the new
IP-Address. This is probably going to create a problem for the order-
processing cgi's if they don't use the same databases and files and such.
Even if you bring down this "latency-time" by decreasing the TTLs on your
nameservers to zero, there might still be some trafic which started on
the first IP and ended on the second.

So a 100% safe migration can only be achieved with 100% sharing of the
HTML Pages, CGI and data-files. Should be relatively easy to achieve
using links instead of true directories from the new site to the old one.
And when the migration period is over, the old directories are just
unlinked.

But I would try it on a test-site first, by the way :o)   Michael