The IETF Secretariat now maintains two server locations, one in Reston, Virginia and one in Natick, Massachusetts, for both http and anonymous ftp services.
Using "www.ietf.org" will take you to one of these two sites. If one of the sites is down or unreachable, you can access either site directly using the following names:
- www1.ietf.org (Reston)
- www2.ietf.org (Natick)
In addition, ftp mirror sites continue to be available for ftp access to Internet-Drafts.