WALoeIII
04-19-2002, 01:03 AM
I'm thinking about hosting my own DNS/everydns.net, except I have no idea about what the different records and stuff do, also I'd like to be able to use ns.myserver.com even with everydns.net.
Can anyone point me in the right direction?
serve-you
04-19-2002, 01:26 AM
http://www.linux.org/docs/ldp/howto/DNS-HOWTO.html
-Dan
WALoeIII
04-19-2002, 01:52 AM
Kinda over my needs.
Can you say yes no?
An 'A' record defines a domain name to an IP.
'CNAME' records also define domain names to IP, but for secondary domains?
'MX' is for mail and 'NS' is for nameservers, I got that.
What are MX Values?
serve-you
04-19-2002, 02:13 AM
Originally posted by Snoozy
Kinda over my needs.
Can you say yes no?
An 'A' record defines a domain name to an IP.
Correct
'CNAME' records also define domain names to IP, but for secondary domains?
Sorta.
A CNAME just points to an A record. So say you have an A record for yourdomain.com pointing to 10.1.1.1, if www.yourdomain.com is also on that IP, you could make a CNAME for www.yourdomain.com pointing to yourdomain.com. However CNAME's can cause problems when used for mail.
'MX' is for mail and 'NS' is for nameservers, I got that.
What are MX Values?
The MX value is a priority. It is not uncommon to have muliple MX records in a zone, just as you have multiple nameservers. The value set tells the mail where to try first. If it fails to reach the highest priority mail server, then it will go to the next. The lower the value, the higher the priority.
-Dan
WALoeIII
04-19-2002, 03:01 AM
so should I make myserver.com an A record and have *.myserver.com point to it? (catch all for subdomains) or make *.myserver.com an A record and have myserver.com point to it as a CNAME?
ToastyX
04-19-2002, 06:59 AM
Originally posted by Snoozy
so should I make myserver.com an A record and have *.myserver.com point to it? (catch all for subdomains) or make *.myserver.com an A record and have myserver.com point to it as a CNAME?
Your domain name should NEVER be a CNAME because that can cause problems with e-mail. I'd recommend you make both myserver.com and *.myserver.com A records so that subdomains won't have problems with e-mail.
Also, some things to note:
- CNAME records are not like A records. CNAME records are just aliases. They just point to another domain or subdomain. You can use A records for subdomains.
- MX records are for mail. Just remember that you cannot specify the mail server as an IP address. It must be a host name.
- NS records let you delegate subdomains to other DNS servers. The root servers have NS records for your domain name pointing to your DNS servers. myserver.com is just a subdomain of com. If you wanted to, you could delegate world.myserver.com to someone else's DNS server, and they could delegate hello.world.myserver.com to another DNS server. DNS is like a big tree.
DNS really is simple, but a bit hard to explain. The best way to learn is to play around with it and see it in action.
bacid
04-19-2002, 12:37 PM
http://www.acmebw.com/askmrdns/
one of hte best DNS resources i've ever come across.
WALoeIII
04-19-2002, 01:48 PM
I got the tree aspect, its hard to find good documentation on how/what the different record types do.
raj4800
04-23-2002, 01:46 PM
checkout http://www.internic.net/faqs/authoritative-dns.html