Re: OT DNS cname vs dname question
DNAME is for aliasing an entire domain, not a single resource, so you should use CNAME. You should also see if there is an MX record for your old app server. If so it will need to be updated as well. Judah On Mon, Jul 6, 2009 at 10:15 AM, Ian Skinnerh...@ilsweb.com wrote: Not a ColdFusion question, but there are just so many smart people here. We have an old server named jolie [jolie.cdpr.ca.gov] . This server is being replaced by our new apps server [apps.cdpr.ca.gov]. What do I want to tell our DNS host to do with the old jolie.cdpr.ca.gov entry to have it point to the news apps domain? Is it better to use a cname or a dname or something completely different? jolie.cdpr.ca.gov CNAME apps.cdpr.ca.gov OR jolie.cdpr.ca.gov DNAME apps.cdpr.ca.gov OR something completely different TIA Ian ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:324256 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: OT DNS cname vs dname question
Judah McAuley wrote: DNAME is for aliasing an entire domain, not a single resource, so you should use CNAME. You should also see if there is an MX record for your old app server. If so it will need to be updated as well. Judah Is that not what I am attempting to do, aliasing the entire 'jolie' domain? What is the difference between a single resource and an entire domain? We used to have a server accessed under the domain 'joile.cdpr.ca.gov'. We now have a new server accessed under the domain 'apps.cdpr.ca.gov'. We want any and all traffic to the old domain to end up on the new. Is that a 'single resource' or an 'entire domain' and why? TIA Ian ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:324259 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: OT DNS cname vs dname question
The servers jolie and apps are hosts, not domains. If the server is registered in DNS with an A or CNAME record, it's not a domain. Dave Watts, CTO, Fig Leaf Software -Original Message- From: Ian Skinner h...@ilsweb.com Sent: Monday, 06 July, 2009 14:22 To: cf-talk cf-talk@houseoffusion.com Subject: Re: OT DNS cname vs dname question Judah McAuley wrote: DNAME is for aliasing an entire domain, not a single resource, so you should use CNAME. You should also see if there is an MX record for your old app server. If so it will need to be updated as well. Judah Is that not what I am attempting to do, aliasing the entire 'jolie' domain? What is the difference between a single resource and an entire domain? We used to have a server accessed under the domain 'joile.cdpr.ca.gov'. We now have a new server accessed under the domain 'apps.cdpr.ca.gov'. We want any and all traffic to the old domain to end up on the new. Is that a 'single resource' or an 'entire domain' and why? TIA Ian ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:324261 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: OT DNS cname vs dname question
Dave Watts wrote: The servers jolie and apps are hosts, not domains. If the server is registered in DNS with an A or CNAME record, it's not a domain. Dave Watts, CTO, Fig Leaf Software That clarifies some of it. I really need to get my head around the entire DNS way fores and whatnots someday. ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:324262 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: OT DNS cname vs dname question
There are some potential complications when you start getting into delegation of subdomains, but that is a pretty rare setup. Generally speaking you are going be dealing with two levels of DNS. There is the domain itself which you would go to a registrar for, like foo.com or foo.co.uk That registrar tells the DNS root servers (the people that act as the directory for .com, .org, .co.uk, etc) who is authoritative for your domain foo.com, where the DNS server for that domain is. Then you manage your dns zone file yourself on your DNS server. That is where the A records, CNAME, MX records etc go. Then what happens when a web browser wants a page from a.foo.com is that the client computer asks its local DNS server who has the address for that, the local DNS server figures out who is authoritative (hosts the dns zone file) for foo.com and then it goes and asks the dns server for foo.com what the address of a.foo.com is. The DNS server that hosts the zone file will respond with either an A record (which lists an actual ip address) or a CNAME which says, what you really want is this A record over here. So except for when you are registering a domain name, you are pretty much dealing with a zone file that has individual records, almost all of which are either A, CNAME, MX (for mail servers) or PTR (for reverse lookup of a host from an IP address). Hope that helps, Judah On Mon, Jul 6, 2009 at 12:35 PM, Ian Skinnerh...@ilsweb.com wrote: Dave Watts wrote: The servers jolie and apps are hosts, not domains. If the server is registered in DNS with an A or CNAME record, it's not a domain. Dave Watts, CTO, Fig Leaf Software That clarifies some of it. I really need to get my head around the entire DNS way fores and whatnots someday ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:324269 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
