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Ubuntu as Time Machine server

Ubuntu as Time Machine server

This guide will help you to install and configure the netatalk servise on an Ubuntu server so it can function as a Time Machine backup server for your Mac OS machines.

First install the necessary packages:

sudo apt-get install netatalk avahi-daemon libnss-mdns

Open the netatalk default configuration file:

sudo vi /etc/default/netatalk

Modify the lines:

ATALKD_RUN=yes
PAPD_RUN=no
CNID_METAD_RUN=yes
AFPD_RUN=yes
TIMELORD_RUN=no
A2BOOT_RUN=no

Edit the atalkd.conf file:

sudo vi /etc/netatalk/atalkd.conf

add to the bottom

eth0

Edit the AppleVolumes.default file:

sudo vi /etc/netatalk/AppleVolumes.default

add to the bottom:

/backups/timemachine "Time Machine" allow:@admin cnidscheme:cdb volsizelimit:200000 options:usedots,upriv,tm

The example above also limits the size shown to OS X as 200 GB (the number is given in MiB, so its 200,000 times 1024 in the real world)

Edit the afpd configuration file:

sudo vi  /etc/netatalk/afpd.conf

add to the bottom:

- -transall -uamlist uams_dhx.so,uams_dhx2.so -nosavepassword -advertise_ssh -mimicmodel TimeCapsule6,106 -setuplog "default log_warn  /var/log/afpd.log"

Create a configuration file for the avahi afpd discovery:

sudo vi  /etc/avahi/services/afpd.service

and enter the following into it:

<?xml version="1.0" standalone=no?><!--*-nxml-*-->
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<service-group>
 <name replace-wildcards="yes">%h</name>
 <service>
 <type>_afpovertcp._tcp</type>
 <port>548</port>
 </service>
 <service>
 <type>_device-info._tcp</type>
 <port>0</port>
 <txt-record>model=MacPro</txt-record>
 </service>
</service-group> 

Restart the services:

sudo service netatalk restart
sudo service avahi-daemon restart

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