[Asterisk-Users] Re: load balancing 20 asterisk servers

[Jens Vagelpohl]

On Feb 3, 2005, at 0:03, Miguel Ruiz Velasco Sobrino wrote:

> --- asterisk-users-request at lists.digium.com wrote:
>
>> The DNS approach does not handle single or multiple system failures,
>> only very elementary load balancing over a lengthy period of time.
>
> Are you shure of that? I'm aware that the load criteria is trickier, 
> but very possible.

Operating systems and probably a lot of devices *cache* the results of 
DNS lookups. That means removing A records won't do any good.

Short story: No matter what network service is being balanced, if you 
want to guard against failure and against customers noticing that 
failure use a real load balancing solution, DDNS is not suitable.

jens