Mr. or Ms. ITLists, it appears you have a bad or incomplete A record for mail.imcu.com. However, nslookup is not a good tool for DNS troubleshooting; I would suggest you use 'dig' (it's part of the BIND tools package) with the 'debug' option to tell the DNS server not to search recursively.
On Mon, Oct 29, 2012 at 11:54 AM, [email protected] <[email protected]> wrote: > Public ip works. DNS, ping, https, activesync the whole thing. > > I want to access it internally using a name instead of an IP address. > > Currently with I can not https://mail.imcu.com/exchange with or without the > ‘imcu.com’ zone internally. > > If I use a hosts file entry the above works. > > If I use the ip (10.0.50.14) the https link works. > > Not sure I need to go out my firewall just to come back in to get to my > exchange box? > > > > > > From: Richard McClary [mailto:[email protected]] > Posted At: Monday, October 29, 2012 11:41 AM > > > Posted To: [email protected] > Conversation: DNS? > Subject: RE: DNS? > > > > Let’s see… You have a private LAN, and you are hoping the public can reach > the system at that same (private, internal) IP? > > > > Why not register an external IP for that system, then do a mapped IP address > (“MIP”) through your firewall? > > > > From: [email protected] [mailto:[email protected]] > Sent: Monday, October 29, 2012 9:59 AM > To: NT System Admin Issues > Subject: RE: DNS? > > > > You are accessing it from external though. External is working fine. > > I am wanting an internal zone since my domain is imcu.local and my mail is > imcu.com… > > I hope to God you can use the internal ip address from the wild. > > That would send me home in a bucket. > > > > > > From: Steve Ens [mailto:[email protected]] > Posted At: Monday, October 29, 2012 10:53 AM > Posted To: [email protected] > Conversation: DNS? > Subject: Re: DNS? > > > > For me it's the other way around... > > On Mon, Oct 29, 2012 at 9:46 AM, [email protected] <[email protected]> wrote: > > Ok https://10.0.50.4/exchange works but https://mail.imcu.com/exchange > fails??? > > > > > > 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. > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
