Setting up DNS

Hey guys,
I'm playing around with 10.5 server, I've had quite a bit of experience with previous version of OS X Server and I can't seem to get this one figured out...
In the past I've just run DNS internally so that the server can do forward and reverse lookups on itself so I can run the server as an OD Master. In 10.4 I would have normally created a primary zone with info as follows:
Zone Name: pretendo.com
Server Name: xserve
FQDN: xserve.pretendo.com
Server IP: 192.168.1.x (some internal static IP)
Name Servers: xserve.pretendo.com.
Machines tab: (create machine record)
IP Address: 192.168.1.x
Name: xserve
FQDN: xserve.pretendo.com.
IP Reverse Lookup: xserve.pretendo.com
And that seems to work quite well. In 10.5 I did my initial setup as an advanced server and went into DNS and I've been able to get it so I can do an nslookup on the IP and the FQDN. I've added the IP of the server to it's DNS search list in System Prefs. I have web services activated but when I go to www.pretendo.com it fails, if I type in xserve.pretendo.com it goes to the default home page. Where have I gone wrong?
Thanks,
Graham

Hi Graham
You’re welcome! Thanks for the feedback! So if you now run the host command you should see something like this:
host www.pretendco.com
www.pretendco.com has address 192.168.1.x
host 192.168.1.x
x.1.168.192.in-addr.arpa domain name pointer host192.168.1.x.in-addr-xserve.pretendco.com
Similarly:
host xserve.pretendco.com
xserve.pretendco.com has address 192.168.1.x
host 192.168.1.x
x.1.168.192.in-addr.arpa domain name pointer host192.168.1.x.in-addr-xserve.pretendco.com
If you add a machine record for the mail or ftp prefixes then your server should respond to requests for mail.pretendco.com and ftp.pretendco.com. You cant do anything with the Reverse Zone as this gets created when you create the Primary Zone. Obviously the Reverse PTR Record maps the NS and A Records to each other that were created in the Primary Zone. You could add a CNAME Record if you wish but its not necessary.
Does this mean the post is answered? Tony

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I'm curious as to how I set up DNS in this situation
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Hi
I'm looking to set up a Mountain Lion Server at home.
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If I don’t need remote access to my server very often then this would be acceptable.
Question 5 - If I did go the full internet way (as opposed to the .private domain) what do I register at dyn.com? Just my domain, then add a record for the server.
1. Register ‘example.com’
2. Add a record at Dyn.com for ‘server.example.com’.
3. On my server set up put ‘server’ in the Computer Name field
4. On the ‘Host Name’ field enter ‘server.example.com’.
Question 6 – Bonjour and DNS. Aside from whether I go for a public registered domain or a private domain (and access via VPN or LogMeIn) how do these settings affect the Bonjour set up? My understanding is the Bonjour uses .local. So what is the resolution path? If I set up a DNS server on my Mountain Lion Server do I need to enter a record for each local laptop in the house or can I leave that to Bonjour? My understanding is the Bonjour will continue for all local address resolution and the Mountain Lion DNS will take care of resolving the server name (for Directory Services and any other services). Is this right will DNS be used for file and print services on the server?
Any thoughts/answers/comments/casual abuse welcome.
Thanks

Hi
I'm looking to set up a Mountain Lion Server at home.
I have a Lion Server but I think I will wipe it and start again, mainly because I didn't use a particularly good name to begin with. I've read the We Got Served Mountain Lion Server book, Mountain Lion Server for Dummies and Apples Documentation.
I am planning to set up in the following way:
Turn my Virgin Media router 'Modem Only' mode on.
Turn on my AirPort Extreme and set it up as the DHCP server.
I will set up a pool of IP addresses.
Question 1 - I think the best way is to make a reserved IP address for my server within this pool rather than a static IP address outside of the pool (but within the subnet). Any comments on this?
Question 2 - I need to boot my Lion Server to get the MAC address for the reservation. Should I set the reservation IP as the IP the DHCP server provides or set it up to an unused IP address? I will set up DHCP to distribute DNS server names.
Question 3 - Because I want my Mountain Lion Server to provide Directory Services I need to set up the Mountain Lion Server as a DNS server. Is this correct?
The DNS servers I will get the DHCP server to provide in the following order:
1 My Mountain Lion Server
2 My 1st Virgin Media DNS Server
3 My 2nd Virgin Media DNS Server (not sure I can set up a 3rd DNS server)
I am not going to use a Google DNS or another open DNS because they are located in the US and this affects caching of internet content.
When I set up my Mountain Lion Server I am in two minds about going for a public internet registered domain or a private domain.
Question 4 - Are there any limitations in using the registered public domain as opposed to a private domain with VPN. If I need access to any of my machines remotely I tend to use LogMeIn form my iPad. But I am tempted (just because its there) to set up a public internet address and using it. If I did go for the public domain I would need to use a dynamic DNS service (like Dyn.com) because I don't have a static IP. However if I didn't I would only need to change my public DNS entry if I rebooted my router (and I may not even then as its IP address may not be reassigned).
If I don’t need remote access to my server very often then this would be acceptable.
Question 5 - If I did go the full internet way (as opposed to the .private domain) what do I register at dyn.com? Just my domain, then add a record for the server.
1. Register ‘example.com’
2. Add a record at Dyn.com for ‘server.example.com’.
3. On my server set up put ‘server’ in the Computer Name field
4. On the ‘Host Name’ field enter ‘server.example.com’.
Question 6 – Bonjour and DNS. Aside from whether I go for a public registered domain or a private domain (and access via VPN or LogMeIn) how do these settings affect the Bonjour set up? My understanding is the Bonjour uses .local. So what is the resolution path? If I set up a DNS server on my Mountain Lion Server do I need to enter a record for each local laptop in the house or can I leave that to Bonjour? My understanding is the Bonjour will continue for all local address resolution and the Mountain Lion DNS will take care of resolving the server name (for Directory Services and any other services). Is this right will DNS be used for file and print services on the server?
Any thoughts/answers/comments/casual abuse welcome.
Thanks

Gateway set up DNS/PTR

Hi , I need to set up an Xserve as a gateway for our office LAN The Xserve connects to a locked ISP provided router on the WAN side (public IP) and on the LAN side to a switch and on to our clients.
I need to know exactly what my ISP needs to have set up in their DNS records, as I understand it they must have a "A" record and MX but my ISP Tech tells me that I need WWW * etc etc but when he puts all of these in my xserve picks up the incorrect FQDN.
I expect "server.mydomain.com" but I get "mydomain.com" which i assume will the cause problems with my local realm ?
Any help with the correct terms etc so I can explain to them what I require.
Many Thanx

Your phrasing of the question raises all kinds of red flags for me…
First off, you can have only one PTR record. If this server is running as a mail server for your domain then that PTR record should match whatever name you choose for your mail server/MX record (e.g. 'server.mydomain.com' is fine as long as your MX record points to 'server.mydomain.com' and your mail server is configured to identify itself as 'server.mydomain.com'.
If your ISP is also managing DNS for your domain then you should then have ONE 'A' record for your nominated hostname (e.g. server.mydomain.com with the associated IP address).
Any other hostnames that map to your site (either services such as web that are running on this machine, or services that are NATted at this server to an internal machine) should be setup as CNAME records to the above A record.
For example:
Forward DNS:
mydomain.com MX 10 server.mydomain.com.
server.mydomain.com A 123.45.67.89
www.mydomain.com CNAME server.mydomain.com.
foo.mydomain.com CNAME server.mydomain.com.
Reverse DNS:
89.67.45.123.in-addr.arpa PTR server.mydomain.com.
What worries me about this all, though, is that it sounds like you have a single server, and that server is publicly-facing.
If this server is also running services such as Open Directory (maintaining the list of user accounts), DNS (for your internal clients), file sharing, etc. then these services by default will all be publicly exposed and you will leak your internal domain data to the outside world. You will be targeted to dictionary and brute force attacks and you risk compromising your network as a result.
In other words I do not recommend running a single server for all services as well as a NAT gateway. It takes too much time and effort to secure the server. Do yourself a favor and get a $50 NAT router to act as your network edge device (connected to your ISP's router) and sleep easier at night.

Setting up DNS

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