Fixing the El Capitan Keychain error 100001

Here is a fix for a pernicious error that prevents users from accessing a Debian server that offers TimeMachine disk space.

El Capitan & Netatalk2

Migrating a Debian server advertising disk space as TimeMachine to Macs running OS X 10.6.8 (Snow Leopard) to Macs running 10.11 (El Capitan) requires the tiniest of changes to the afpd.conf file.