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Apple Time Machine backups on Debian 9 (Stretch)

Debian

Netatalk 3.1.12 has been released which fixes an 18 year old RCE bug. The Medium write up on CVE-2018-1160 by Jacob Baines is quite an entertaining read.

The full release notes for 3.1.12 are unfortunately not even half as interesting.

Warning: Read the original blog post before installing for the first time. Be sure to read the original blog post if you are new to Netatalk3 on Debian Jessie or Stretch!
You'll get nowhere if you install the .debs below and don't know about the upgrade path from 2.2.x which is still in the Debian archive. So RTFA.

For Debian Buster (Debian 10) we'll have Samba 4.9 which has learnt (from Samba 4.8.0 onwards) how to emulate a SMB time machine share. I'll make a write up how to install this once Buster stabilizes. This luckily means there will be no need to continue supporting Netatalk in normal production environments. So I guess bug #690227 won't see a proper fix anymore. Waiting out problems helps at times, too :/.

Update instructions and downloads:

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Netatalk 3.1.9 .debs for Debian Jessie available (Apple Timemachine backup to Linux servers)

Debian

Netatalk 3.1.9 has been released with two interesting fixes / amendments:

  • FIX: afpd: fix "admin group" option
  • NEW: afpd: new options "force user" and "force group"

Here are the full release notes for 3.1.9 for your reading pleasure.

Due to upstream now differentiating between SysVinit and systemd packages I've followed that for simplicity's sake and built libgcrypt-only builds. If you need the openssl-based tools continue to use the 3.1.8 openssl build until you have finished your migration to a safer password storage.

Warning: Read the original blog post before installing for the first time. Be sure to read the original blog post if you are new to Netatalk3 on Debian Jessie!
You'll get nowhere if you install the .debs below and don't know about the upgrade path. So RTFA.

Now with that out of the way:

Continue reading "Netatalk 3.1.9 .debs for Debian Jessie available (Apple Timemachine backup to Linux servers)"

Apple Timemachine backups on Debian 8 (Jessie)

Debian

Upgrading Debian 7 (Wheezy) servers to Debian 8 (Jessie) proves (unexpectedly) quite rough around the edges.

That's what you get for using a version x.0, we should have known better :-).

And - of course - the release notes follow the common practice of not even mentioning any of the issues we encountered so far.

Ah, well, let's go through the first one:

In Debian 7 (Wheezy) there was netatalk 2.2.2 (packages link). Now during upgrades that package may or may not get removed. There is no netatalk in Debian 8 (Jessie) anymore. Duh. There is in sid (aka Debian unstable) (packages link) so we may see a backport some time. Or not. In any case this is still 2.2.5 at the time of writing and as Adrian Knoth put it in the three year old bug asking for a upgrade to Netatalk 3:

Let's not ship another release without netatalk3, it's embarrassing.

Yes. It is. Removing a working version and not even mentioning it in the release notes is even worse though. So no cookies there.

Luckily the absolutely awesome Debian and greater FLOSS community have sorted 90% of the problem out for us already:

A quick Google search turns up an excellent article on netatalk's wiki that details installing Netatalk 3.1.7 on Debian 8 Jessie. There are two shortcomings to this: First it doesn't compile to .debs but installs besides apt and friends. And second it compiles with Spotlight search, courtesy of Gnome tracker, which doesn't really work well on servers yet. Hence we're lucky that Adrian Knoth's debified install has not yet added the tracker dependencies. It does compile for systemd use (the default for Debian 8 Jessie). If you want to continue using SysVInit, you need to modify debian/rules.

Compiling to .debs becomes as easy as:

# get build dependencies and a few helpers
apt-get install build-essential devscripts debhelper cdbs autotools-dev dh-buildinfo libdb-dev libwrap0-dev libpam0g-dev libcups2-dev libkrb5-dev libltdl3-dev libgcrypt11-dev libcrack2-dev libavahi-client-dev libldap2-dev libacl1-dev libevent-dev d-shlibs dh-systemd
# in case you want to try the tracker support (you need to ammend the debian/ build config as well)
# apt-get install tracker libtracker-sparql-1.0-dev libtracker-miner-1.0-dev  
git clone https://github.com/adiknoth/netatalk-debian
cd netatalk-debian
debuild -b -uc -us

This should leave you with (at the time of writing this):

File Function md5 sha1
libatalk-dev_3.1.7-1_amd64.deb Development files for the libatalk library (dev only) e5a465e39a8560c919d8db85c8e5a83b 0b924cf75f22ab42406289c6f18ae0243d6396a3
libatalk16_3.1.7-1_amd64.deb libatalk library (needed) 17a3d677ed0b3df1c2f4c1a8ab9045fd 7345ed3edd442716c99c2fe979140703204c0826
netatalk_3.1.7-1_amd64.deb netatalk daemons (needed) c694abca7f3cdc0070b2b3e7d528324a 932d1e3d5899958f29e79a7ba40e858d4ac272e8

Obviously you can download the files above if you run the AMD64 architecture and trust me enough to compile them for you.

Continue reading "Apple Timemachine backups on Debian 8 (Jessie)"