DTC ports, kind of urgent
billd
I'm struggling with an deploying an application server and SQL server at a
customer location.
The SQL server will be deployed in a trusted zone and the app server in a
DMZ with firewall rules allowing access to the SQL server.
I have followed douments to reduce the number of ports that DTC will use to
135 and 5000 to 5020, but, this applation may scale to very large proportions
with 1000s of transactions taking place. I am worried that 20 RPC ports will
not be enough to handle the transactions. The transactions are small, but
there could be many, I am assuming that each transaction is going to use a
port and then it will close the port and next one takes place, but the
problem is that this 20 ports seems sort of nebulous. The customer is
worried that they will have to keep opeing more port as the app scales up.
Is there any guidance on how many ports would be required for say number of
trasactions per minute, or second, or really anything at all to judge how
this will work? If there are no free ports will the transactions queue, will
any be lost? (sorry, I'm not a reall DTC/MS SQL expert at all, more on the
security and modeling side of this)
I'd really appreciate if anyone could comment on this as soon as humanely
possible as I need to provide some input today as I'm off skiing tomorrow
morning! When the going gets tough, the tough go skiing :-)
Cheers all!