Re: [CentOS] DNS wizard

John Hinton wrote:

I've almost never use CNAMES and really am wondering about a truly useful application. In this day of spam, it seems like less is best with regards to subdomains, such as the example above. CNAMES also require at least one extra loop in the lookup.. so why are they so widely used when an A record does the more defined and more limited task? There certainly seems to be some useful wizardry in CNAMEs, but darned if I can think of a use for basic web hosting types of situations.

I tend to agree, although there are places where CNAMEs are necessary like classless reverse delegation (RFC 2317) or when you don't control the zone where the target A record(s) live.