Search Again: How Are CNAME Records Cached? From: Warren Michelsen Date: Monday, December 13, 1999 Time: 10:17:00 pm The recent discussion re: "Missing A records and slow resolution" got me to wondering how CNAME records are cached. If "originalDomain.com" has A records and "virtualDomain.com" has only CNAME records pointing to the corresponding A records at originalDomain.com, and Joe user browses to both of these domains, how does the name server that his browser used store these lookups in cache? As an address for originalDomain.com and as an alias for virtualDomain.com? Or are both stored as the actual address so that both can be served from cache on the next request for each? Since I'm undergoing my second renumbering of IP addresses in 5 months, I've been seriously thinking about using A records only in my "originalDomain.com". But I am concerned about speed of response. So, after the initial lookup that gets an entry into the cache, is there any difference between using A or CNAME records? -- Internet Tools for Business -- <http://www.CyberSpaces.net/>

Messages In This Thread: How Are CNAME Records Cached? by Warren Michelsen on Dec 13, 1999 at 10:17:00 pm Re: How Are CNAME Records Cached? by Men & Mice Support on Dec 14, 1999 at 4:06:00 am