[T10] Network access changes to t10.org

Ralph Weber Ralph.Weber at wdc.com
Tue Jul 21 10:40:51 PDT 2020

This coming Saturday has been selected for a renewed effort to reconfigure the networking interfaces to a large collection of virtual machines housed behind the WD Firewall. The webservers for t10.org and t13.org will be affected by this reconfiguration. Since only ad hoc meetings are scheduled for the next few weeks, the new schedule seems like an improvement for T10 and T13.

The most dramatic effects are possible on Saturday (25 July) in the Pacific Cost Time between mid-morning and early afternoon. During this time, there is a possibility that the webservers will be so inaccessible that a command line Ping to either of them will timeout (e.g., C:> ping t13.org will timeout).

Both before and after the dark hours of inaccessibility, changes are possible that will confuse web browsers to an extent that makes the websites "look" inaccessible.  These conditions arise from the fact that (in addition to all the other cached goodies) web browsers cache translations between URLs and their underlying IP addresses.

The resulting web browsing behavior can be bewildering, to say the least. Complaints such as, "It works when I disable the VPN but not when the VPN is on" suggest the extent of the possible turmoil. For this reason, I have been asked to distribute the following URL to provide guidance regarding how to clear the just-right part of a browser's cache: http://www.wikihow.com/Clear-Your-Browser's-Cache

All the best, .Ralph

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