DNS updates & cacheing problem

[Jonathan de Boyne Pollard]

B> We are expericing problems where someone will change thier DNS entry
B> for www at thier register...we dont get the update untill almost 2
B> days later [...]

It appears, from what you write, that some DNS administrator is 
forgetting the cardinal rule of DNS administration, "PLAN AHEAD!", and 
blaming you for the result.

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dns-switching-content-servers.html#Waiting>

B> where can i find out on our dns server what the caching time is

Perform lookups.  Read the answers that you receive.

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dns-diagnosis-tools.html>