Pabs wrote:
> Hi, typically the SBS server would be handing out DHCP addresses.
> However I'm wondering if the router should be the one handing out DHCP
> addresses. For example, a colleague of mine had their SBS 2003 server
> go down due to a hardware issue. Now no one in the office can access
> the Internet. If the router was the DHCP server, I believe they'd
> have Internet access right now from their workstations. Any thoughts
> or experiences on this? Thanks.
No, they wouldn't. Your workstations *must* be using *only* the SBS
server for DNS, so if the SBS is down, so is the Internet. DHCP is
irrelevant, as IP addresses don't disappear the moment the DHCP server
goes down. Have a look at the lease expiry times in the Server
Management console.
There is no cheap, practical way of arranging failover. The absolute
minimum requirement is a second server also holding the SBS Active
Directory database and providing a secondary DNS service. No DNS server
which does not link to the AD information is suitable to provide DNS to
workstations.
The short answer is to do your very best to avoid the SBS going down. If
the business will suffer badly from a short loss of access to the
Internet, then they need to spend a significant amount of money ensuring
that it will not happen, starting with a second, completely independent
wide-bandwidth Internet connection and a good quality dual-WAN router.
In the real world, the most vulnerable part of the Internet connection
is the router, followed by the ISP. The server comes well down the list.
--
Joe
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