One of my clients runs some of his servers in certain regions around the globe where Internet access is a little flaky.
Local servers at these remote sites cater for two types of users, internal staff and external partners. Both of these groups of users actually access the company application using the same URL. The DNS servers handle the pertinent redirections.
To overcome frequent disconnections, users can be redirected to a server located at a neighbouring site.
When this occurs though, the internal users are redirected towards the updated IP address pretty quickly, whereas the external users have to wait for 'Internet' DNS propagation to occur, and the time lag can be quite significant sometimes.
Is there a way to accelerate the propagation of DNS changes at all ?
Has anyone come up with alternative solutions to deal with the situation described above ?