On Oct 3, 2008, at 1:06 AM, Stephane Bortzmeyer wrote: > On Mon, Sep 29, 2008 at 11:26:25AM +0530, > Saju C <[EMAIL PROTECTED]> wrote > a message of 10 lines which said: > >> Please confirm whether we can create A Record PRIORITY using the >> current bind version or not. > > [A records? People still use them? Not everyone is running IPv6?] > > The only solution is probably the SRV record, which allows to define > priorities. > > http://en.wikipedia.org/wiki/SRV_record
The SRV record requires that (a) there is a standard definition of how SRV is applied to the protocol in question, and (b) the client look for SRV records. Most protocols don't have the necessary standard definition of how they work with SRV records. >> If not possible in which version it is available and how? > > It is a DNS issue. The DNS protocol does not have provisions for this > sort of things. No implementation can do it. That's not strictly true. Look at lbnamed, or the load balancing and fault tolerance routine of the old QuickDNS Server for classic Mac OS (not Mac OS X). Records are not simply returned in a particular order; instead, just one record of the set is returned to any given request, based on the state of each server (up, down, loaded, unloaded) and possibly on configured traffic ratios. The mechanism is problematic, but these two examples do show that any given implementation can do many things above and beyond the details of the DNS protocol. Chris Buxton Professional Services Men & Mice
