Got it working, Thanks Chris.
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Creating Cname Record For Secure OWA Site https through internal dns server
I need help. I have an outlook web access site, lets call it, https://mail.bob.com. I cannot access this inside the network, only externally. I have been reading and I created a new Zone, non-Ad integrated for this bob.com domain, but I don't know how to setup the actual CNAME record. I am working in Windows DNS and I have tried these.
Alias Name: https
FQDN: https.bob.com
FQDN for target host: Don't know what to put, I put mail.bob.com
The A record I have is, which seems to be working:
Host: www
FQDN: www.pfwmedia.com
Ip Address: 10.185.10.18
By the way my exchange is internal and I don't handle my external dns records.
Any help is much appreciated.
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Answers
Chris, I have a problem now. When I do a smtpdiag to test email to another domain, my local dns MX record check fails now and it makes sense why. I think it is because I am now authoritative for the pfwmedia.com and there are no MX records in there, I just put an alias. Should I add the servers MX records to my local dns box now?
> Strange thing is shouldn't email be failing around here if it can't reach the MX records?
Not if it's internal only, no.
Shall we re-do the zone for mail then? There's another way that'll let it get on with that test and be happy :)
Instead of creating the Forward Lookup Zone as "pfwmedia.com", call it "mail.pfwmedia.com".
Then add a Host (A) Record to that new zone, but leave the name blank. Pop in the internal IP address for the mail server and it's all done.
Afraid you won't be able to use a CNAME record with this version, but it will allow everything else in pfwmedia.com to resolve without any extra work.
Chris
Attachment
- DNS-ISSUE.gif
- 5 KB
Dns Issue
Yeah, adding a CNAME would be illegal, DNS won't like it :) But that's okay, it'll work in almost the same way like this.
And yep, Exchange uses it's own transfer agent, only looking up MX records for things that go out of your organisation. Really you should be able to ignore the error completely if you wish :)
Chris
Hey Chris, how good are you with PIX firewalls? I am trying to learn what some of this syntax means
route outside 0.0.0.0 0.0.0.0 69.12.10.128 1 --->what does the 1 mean at the end?
I know this is a default route so whatever this router doesn't know it will forward it to this .128 device, I don't know what the 1 at the end stands for
Also,
static (inside, outside) 69.12.10.124 10.185.10.18 netmask 255.255.255.255 0 0 ---> Don't understand why this has a subnet mask of this 255.255.255.255 and why it has 0 0 at the end of it.
Hopefully you know, I am trying to learn how to configure/make changes to existing pix.
Thanks, Bob
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by: Chris-DentPosted on 2009-06-03 at 11:19:34ID: 24539481
> Alias Name: https
This is the name you want to resolve. So if you want someone to go to "mail.bob.com" you would enter "mail" here.
> FQDN for target host: Don't know what to put, I put mail.bob.com
And this is where the server is. So if it's an Exchange server inside your network you could use the FQDN of the Exchange server.
e.g.
exchangeserver.yourinterna
That way anyone accessing "mail.bob.com" will end up at the IP address for "exchangeserver.yourintern
HTH
Chris