Herb Martin
Guest
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 Posted:
Tue Jan 11, 2005 3:06 pm Post subject:
Re: DDNS vs Static IP |
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"docnz" <docnz@discussions.microsoft.com> wrote in message
news:0284E7D1-8755-48D3-8DDA-3AA02200C228@microsoft.com...
| Quote: | Hi there, just wondering if someone can shed some information o the above
subject for me.
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First it is important to divide this topic into two major
categories:
Dynamic DNS to support a server with a DHCP assigned
(and thus changing address), and DDNS to suppor the
automatic configuration and reconfiguation of complex
server resolution to support things such as Active
Directory DCs, with concommitant authentication and
replication of those DCs.
| Quote: | If you have your servers with staic ip (which are reserved) why would you
switch to Dynamic DNS?
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For the Internet case where you don't have a DHCP
assigned dynamic address, you probably would not
need dynamic DNS.
You might use it if you had a large number of machines
and didn't wish to configure the DNS server manually.
Note this coincides with the DHCP Server use even
then you don't technically need dynamic addresses (or
can't even use them but must create reservations) but
you chose to use DHCP for simplicity, centralized
administration, and to avoid extra work.
| Quote: | Is there a need to or does one offer better advantages than the other?
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1) DDNS is a virtual necessity for Active Directory
2) DDNS can simplify administration
3) DDNS obvious is the only choice for dynamic addresses
4) DDNS does NOT eliminate the possibility of using
manually assigned resource records.
Only real disadvantages are:
1) You DNS server must offer the option
2) The security issue if an "evil person" registers a
phony address for your important services
#2 is offset by passwords on the Internet typical service,
and by the use of "Secure Updates only" within an AD
domain.
> Any help would be greatly appreciated. |
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