Netatalk/AFP and Time Machine: server name not showing

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http://superuser.com – I configured an Ubuntu PC with Netatalk following one of the many guides you can find online. I'm sharing some of its folders and created a Network Time Machine instance. Everything was working fine until a couple of days ago, when my MBP couldn't reach Ubuntu. I restarted everything (even the router) and now everything works fine again, but my Time Machine instance is doubled: there's the old one named with name of the server (Home Server), which is unreachable, and the new one, which is showing up with the IP address: This is an extract of Netatalk configuration file (apf.conf): [Global] (HowTos)