Hi,
I just want to check if we have to refresh IIS after changing IP address on
the server. Seems like we are in problem with our Exchange after we change
the IP address, [email cant be open]. What kind of refresh can we do other
than restart WWW service ? thanks for advise.
That really depends on a number of things:
When you add a new IP Address to your Server IIS will instantly be available
to use that IP Address if it is configured to use (All Unassigned) IP
addresses
If however your web site is configured to use a specific IP Address then you
will need to adjust the Web Site to use the new specific IP Address.
What may be more of an issue is if you are using DNS as most people are
because DNS has a TTL (Time to Live)
This TTL allows other computers, and other DNS Servers to cache the IP
Address associated with the DNS Name for the TTL period.
So for example if the TTL is cached for 10 hours then you change your
server's IP Address the client computers could attempt to connect to your
web server for the next 10 hours on the old IP Address.
One method to help get around this if you have scheduled a time for an
outage is to lower the TTL for the record to something like 5 minutes. That
way you have a maximum mismatch for 5 minutes and then after you are happy
restore the TTL to something larger.
Now sometimes you can not have the old and the new IP address live because
of switch configuration etc and you may just have to live with an actual
outage but reducing the TTL for the DNS record will help make this as short
as possible.
Did this answer your question?
--
Cheers
Chris
Chris Crowe [MVP 2005/2006]
http://blog.crowe.co.nz
------------------------------------------------
"Yonkey"
news:7FDB85ED-47FA-496F-B726-8E7F05F50DA1@microsoft.com...
> Hi,
>
> I just want to check if we have to refresh IIS after changing IP address
> on
> the server. Seems like we are in problem with our Exchange after we change
> the IP address, [email cant be open]. What kind of refresh can we do other
> than restart WWW service ? thanks for advise.
Thanks Chris,
1st & 2nd paragraph yes pointing to my question, others just more than good
enough for my better knowledge. 1st time I have this strange issue, OWA
somewhat screw up and user cant open their mail/attachment. I give a test and
I found, email flow is ok but you cant open attachment or mail by using OWA.
MAPI client works fine. I checked IIS configuration for exchange everythings
seem to be normal. Is there any recommendation steps on troubleshooting IIS /
with exchange ?
"Chris Crowe [MVP 2005/2006]" wrote:
> That really depends on a number of things:
>
> When you add a new IP Address to your Server IIS will instantly be available
> to use that IP Address if it is configured to use (All Unassigned) IP
> addresses
>
> If however your web site is configured to use a specific IP Address then you
> will need to adjust the Web Site to use the new specific IP Address.
>
> What may be more of an issue is if you are using DNS as most people are
> because DNS has a TTL (Time to Live)
>
> This TTL allows other computers, and other DNS Servers to cache the IP
> Address associated with the DNS Name for the TTL period.
>
> So for example if the TTL is cached for 10 hours then you change your
> server's IP Address the client computers could attempt to connect to your
> web server for the next 10 hours on the old IP Address.
>
> One method to help get around this if you have scheduled a time for an
> outage is to lower the TTL for the record to something like 5 minutes. That
> way you have a maximum mismatch for 5 minutes and then after you are happy
> restore the TTL to something larger.
>
> Now sometimes you can not have the old and the new IP address live because
> of switch configuration etc and you may just have to live with an actual
> outage but reducing the TTL for the DNS record will help make this as short
> as possible.
>
> Did this answer your question?
> --
>
> Cheers
>
> Chris
>
> Chris Crowe [MVP 2005/2006]
> http://blog.crowe.co.nz
>
> ------------------------------------------------
> "Yonkey"
> news:7FDB85ED-47FA-496F-B726-8E7F05F50DA1@microsoft.com...
> > Hi,
> >
> > I just want to check if we have to refresh IIS after changing IP address
> > on
> > the server. Seems like we are in problem with our Exchange after we change
> > the IP address, [email cant be open]. What kind of refresh can we do other
> > than restart WWW service ? thanks for advise.
>
>
>