Link to home
Start Free TrialLog in
Avatar of ChrisCranie
ChrisCranie

asked on

Possible DNS errors when setting up alias

Hi,
I wanted to set up an alias to our new mail server, so that internally and externally users can access it using the same URL;

https://mail.domain.org.uk/exchange

Externally an MX record is set up with does the job, internally I went to make this work also. We go through a proxy, so I was planning to set up an internal alias 'mail' which points to our mailserver.

When looking at the DNS on our server I noticed the following entries for our old mailserver (we currently have both running as we switch); our old mailserver is also our DNS server.

(same as parent folder)     Host     192.168.0.2
2ksvr    Host    192.168.0.2
2ksvr    Host    192.168.254.147
mail      Host     192.168.0.2


Doesn't look right, and the 254.147 address is on a different subnet. Any suggestions where to start on this one?! Our domain is 2000 with the 2003 schema applied for our new Exchange server.
Regards,
Chris.
Avatar of Amit Bhatnagar
Amit Bhatnagar
Flag of India image

What part of the above information does not seem correct to you?..:) Please clarify...

Is this a valid ip?....192.168.254.147. Also where is the Mail server and where is the DNS installed internally?
Avatar of ChrisCranie
ChrisCranie

ASKER

Amazing when I post these things I figure some of it out. Ok, resolved the 192.168.254.147 address. A phone engineer had set multiple IP addresses on our server so it could access our voicemail system.

My remaining questions! Our server has two  host records

2ksvr    Host    192.168.0.2
mail      Host     192.168.0.2

1. I want 'mail' to point to a new server, 192.168.0.5. Can I simply change this host record?
2. Is there any reason that I should be using a host record rather than an alias to point to our mailserver?

Thanks,

ASKER CERTIFIED SOLUTION
Avatar of Amit Bhatnagar
Amit Bhatnagar
Flag of India image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Thanks - ok the host 'mail' has now been changed and it's up and pinging mail gives the new server, 192.168.0.5.

Unfortunately the FQDN link doesn't work internally yet;

Externally, https://mail.domain.org.uk works fine
Internally, https://mail.domain.org.uk gives a proxy error of 111 connection refused (i'm using smoothwall). Is there any way to make PCs look locally for mail.domain.org.uk but externally for domain.org.uk?

Or is this not possible?
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Result. We were using a proxy server (smoothwall) so I added an equivalent file to the PAC file. Up and running - many thanks!
Great !!..:) Take Care.