http://en.wikipedia.org/wiki/Colocated
http://en.wikipedia.org/wiki/Dns "The Domain Name System (DNS) distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an *authoritative server(s) for each domain to keep track of its own changes*, avoiding the need for a central registrar to be continually consulted and updated." "The domain name space consists of a tree of domain names. Each node or leaf in the tree has one or more resource records, which hold information associated with the domain name. The tree sub-divides into zones. *A zone consists of a collection of connected nodes authoritatively served by an authoritative DNS nameserver.* (Note that a single nameserver can host several zones.)" DHSinclair wrote: > Got it! Really great answer. Can I believe that a "colo" is just a > duplicate machine > somewhere else physically that has a replicated database of the local > authoritative > DNS? I'll imagine that these two machines spend their time keeping each > other up > to date......and handle DNS calls from the clients of the network to > which they are > attached.... > > Best, > Duncan > > At 20:32 11/02/2007 -0700, you wrote: >> What he said! ;) >> >> Ideally you want to be in control of the authoritative >> DNS servers for your >> domains not going through a 3rd party. Just one less >> thing for a 3rd party to FUBAR. >> >> Ben Ruset wrote: >> > If you own a domain, you can either host DNS >> yourself or have a provider >> > do it. Most web hosts will host your DNS for you, >> although generally you >> > have little or no ability to make/change your own >> DNS entries. >> > >> > I own my own domain, and manage all of the domains >> my company owns. I >> > have my own DNS server running on my personal server >> that I keep in a >> > colo in NYC. I also have a pair of DNS servers for >> my office - one is in >> > a colo in NYC, and another is in a colo in TX. >> >> >> __________________________________________________ >> Do You Yahoo!? >> Tired of spam? Yahoo! Mail has the best spam protection around >> http://mail.yahoo.com > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
