Answer / parvesh paliwal

well, this is not a good pratice to so and the reasons
behind are :

1. Redundancy and Stability - if the exchange server fails
then Domain Controller also fails and it concludes a big
failure...

2. Overload : It may overload your existing server and that
can cause a significant performance problem.

well if think there is something important that i missed
please inform me via mail.

Answer / king iqbal

1. Redundancy and Stability
2. Overload
3. LDAP Port conflict
4. Not recommended by Microsoft as Exchange service need AD
services to be up and running and it could result in
Exchange Services failure and possibly Server stuck
at “Applying computer settings”

resolution : http://support.microsoft.com/kb/940845

HKEY_LOCAL_MACHINE\\System\CurrentControlSet\Services\MSExch
angeSA\Parameters BootPause 120

Answer / raveesh katiyar

well, this is not a good pratice to so and the reasons
behind are :

1. Redundancy and Stability
2. Overload

Answer / parvesh

REFERENCE TO ANSWER 3.

The condition applies to exchange 5.x version only , here is
the reference :

http://support.microsoft.com/kb/q224447



I am not sure about which ports does exchange 2k and 2k3
uses ..If anybody can tell, plz put it here ..

I found :

http://www.petri.co.il/ports_used_by_exchange.htm

But even this link does not say that port 389 is used by
exchange 2k/2k3 servers

Answer / harisha

If Exchange server is installed on DC, Exchange server will
not try to contact other DCs for DSACCESS. So if DC fails,
Exchange will also failed.
As mentioned n above comments also suits.

Answer / akshat nigam

Besides stability, redundancy and overload. The major reason
is that both Exchange and DC use port 389 for LDAP queries.
If you install both on same machine it results in port
conflicts.

For more info search for "LDAP and Exchange port conflict"

Answer / hari

You can install the exchange on DC, but it deteriorates the
perfomance of the server esp AD would affect in terms of
replication issues.

Majorly Exchange Admins wont prefer this option.

Answer / kesavan

cannot perform disaster recovery, If exchange installed on
same DC.

Answer / krishan kumar

Qustion is not qualified becouse without AD we can not
install exchange server .If can be install please give
suggestion.

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