Internal Access to External Domain Name

[CharlieDavi]

Hey guys

I have my new Zimbra Mail Server set up, working well!!

However i have a slight problem with domain names.

Externally i can access the server through mail.mydomain.com

However internally this pings to the same address (external address) but i cant access the server, it wont resolve it at all.

I have a DNS server internally that i use to forward all external traffic. I think i need to set up a reverse DNS?

The reason for this is that people on Laptops need the domain name set up in their client settings that resolves to the server whether internally or externally without their input. So when they are internal the DNS points them to the local IP and when they are external using another DNS it points externally.

I can set up a DNS record on the DNS server but this takes the whole domain, so i have to create a record for everything, but all i want to do is point mail.mydomain.com to a local IP

Can anyone help me?

Cheers
Charlie

[bdial]

you need to do exactly as you said. you need to either setup an internal dns server for your domain that gives the inside ip addresses, or if you're using cisco equipment you could try using the dns rewrite features of nat but thats a bit more complicated.

[CharlieDavi]

the problem i have though is
mail.mydomain.com is INTERNAL
but
Domain Names, Shared Web Hosting and Site Design Tools - MyDomain is external

is there just a way to set mail.mydomain.com i am using webmin on Bind9

[bdial]

you could setup a view in bind. a view allows you to change the informatin returned based on who is requesting it. not sure if you can do this in webmin or not but bind supports it

[phoenix]

Originally Posted by CharlieDavi

is there just a way to set mail.mydomain.com i am using webmin on Bind9

A Split DNS is what you need.