>From my PC (win8): ( I can https://10.0.50.4/exchange and get in but I
get a failed browser going to https://mail.imcu.com/exchange)
C:\Windows\System32\Drivers\etc>ipconfig /flushdns
Windows IP Configuration
Successfully flushed the DNS Resolver Cache.
C:\Windows\System32\Drivers\etc>nslookup mail.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
Name: mail.imcu.com
C:\Windows\System32\Drivers\etc>nslookup
Default Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
> set type=mx
> mail.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
mail.imcu.com
primary name server = 0304090304zu55.imcu.local
responsible mail addr = hostmaster.imcu.local
serial = 2
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
default TTL = 3600 (1 hour)
> imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
imcu.com MX preference = 10, mail exchanger = mx1.imcu.com
> imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
imcu.com MX preference = 10, mail exchanger = mail.imcu.com
> set type=mx
> imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
imcu.com MX preference = 10, mail exchanger = mail.imcu.com
> mail.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
mail.imcu.com
primary name server = 0304090304zu55.imcu.local
responsible mail addr = hostmaster.imcu.local
serial = 2
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
default TTL = 3600 (1 hour)
> set type=a
> mail.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
Name: mail.imcu.com
> www.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
Name: www.imcu.com
Address: 12.145.177.146
> board.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
Name: board.imcu.com
Address: 10.0.10.21
> mail.imcu.com
Server: 0304090304zu55.imcu.local
Address: 10.0.50.205
Name: mail.imcu.com
>
From: Kennedy, Jim [mailto:[email protected]]
Posted At: Monday, October 29, 2012 10:12 AM
Posted To: [email protected]
Conversation: DNS?
Subject: RE: DNS?
That looks correct. Be sure to flush dns on the machine doing the
lookup.
To be sure you should first do an nslookup on the domain's MX and make
sure you get mail.imcu.com
nslookup
Set type=MX
Imcu.com
That should return mail.imcu.com
Then check the A record for mail.imcu.com and you should be good to go.
From: [email protected] [mailto:[email protected]]
Sent: Monday, October 29, 2012 10:09 AM
To: NT System Admin Issues
Subject: RE: DNS?
I'll recycle the dnscache and post my internal DNS records here to make
sure I am doing it correctly.
New Primary Zone
IMCU.COM
imcu.com A 12.145.145.177.176
imcu.com MX mail.imcu.com
mail.imcu.com A 10.0.50.4 (((((internal address))))))
www.imcu.com A 12.145.177.176 (((((external address for managed
website))))))
board.imcu.com A 10.0.10.21 (((((internal address))))))
Should that be all that I need?
I have vpn.imcu.com, ftp.imcu.com but they are programmatically only
accessible through the firewall so outside in only.
After the recycle of dnscache I should be able to do an nslookup for
mail.imcu.com and get the ip 10.0.50.4 just like in my hosts file(Which
I have commented out until after this experiment works or fails)
Thanks
From: Kennedy, Jim [mailto:[email protected]]
Posted At: Monday, October 29, 2012 8:18 AM
Posted To: [email protected]
Conversation: DNS?
Subject: RE: DNS?
Did you also add an MX record for that domain pointing at mail.imcu.com?
Most MTA's will fall back to the A record for the domain, so you could
also put up an A record for imcu.com. But I wouldn't count on that.
Exchange didn't until 2007 or so.
From: [email protected] [mailto:[email protected]]
Sent: Sunday, October 28, 2012 1:50 PM
To: NT System Admin Issues
Subject: DNS?
I have added a new Forward lookup zone for IMCU.COM on my local active
Directory.
I have added an 'a' record for 10.0.50.4 for mail.imcu.com in that
zone.
I do not resolve the mail to the ip.
If I add that record in my hosts file I can browse it easily.
What is wrong in my DNS set up?
Server 2003 active directory.
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