[Samba] smbclient broken after update
peter at serbe.ch
Mon Mar 3 02:44:13 MST 2014
Desite of being pretty reluctant to reinstall something broken,
I took the hard way, and did reinstall the machine from ground
up. Even with all the information on the wiki and on the list
here, it was not exactly an easy undertaking. Hence I will share
my observations. Hopefully it may helf others...
The first pitfall was the installation of lxde. The server is
at the time of the writing my only *nix machine. It is a pretty
powerful one, and hence I wanted to have the graphical surface
on it. At least on Debian (here: Jessie) some crap is being
installed with lxde. Therefore the first step should be:
apt-get remove network-manager
apt-get remove avahi
apt-get install acpi-support
While the first is obvious, the second is a big trap. It seems
to break the DNS update mechanism from Samba4 AD to Bind9. It
took me hours to find out... The acpi-support package is not
related to Samba, but might be helpful anyway. *)
First I installed Bind 9.9.5 from the sources. The wiki
information on how to do that is quite good. I run bind in an
restriced user account "named". Later a bit of fiddling is
necessary to find all the files and directories in
/usr/local/samba, where one needs to add access for the
user "named". It would have loved to give the exact locations,
but by that time it was about 3am, and after so many hours
of hacking my notes got a bit sparse... :-( It would be
great to have the exact requirements in the wiki however.
Once bind works perfectly it is time to install all the
samba and its requirements. First I used the restored git
repository from my first samba installation. All the
configure/make/make install seems to run smoth, but the
provisioning failed while filling the internal database.
There was no error message, just a note on an unhandled
exception in one of the many Python scripts. It turned
out that it was necessary to start over with the git
repository, too. I did the installation more or less
according to the wiki:
git clone git://git.samba.org/samba.git samba-master
git tag -l | grep samba-4.
git checkout tags/samba-4.1.5
But most likely it is better to download the tarball.
Anyway, from now on (and after removing avahi) everything
worked like it should. Mostly at least... It took me quite
a bit of time, to find out the correct principal, which
Bind9 uses in the DLZ update process. I think the successful
try was this:
samba-tool domain exportkeytab /usr/local/samba/private/dns.keytab
This is also not very well documented in the wiki. And
at least for a *nix novice it was not exactly obvious.
I think, it would be a wise step to check the keytab
klist -k /usr/local/samba/private/dns.keytab
and to verify, that the necessary prinicipal is there.
Maybe it would be good to put this in the wiki, too.
I spend some more hours trying to make sssd working.
But without success. I will do a new installation within
an virtual machine some time later, and then ask a
precise question about it by then. For the next few
days I refuse to deal with sssd**). :-!
Eventually I gave up and went back to pam_winbind.
Within less than ten minutes I did see the
SOMEDOM\Administrator in getent passwd.
I don't know whether the sssd approach would
give some performance increase (e.g. when transfering
lots of very small files on the server), but frankly,
my personaly experience with sssd is a nightmare
compared to pam_winbind.
*) The package acpi-support fixes an shutdown issue on the
Asus P8P67-pro (only every second shutdown succeeds, the other
one results in a reboot).
Furthermore the installation of lxde breaks the wake-on-lan
functionality. I ended up with a small shell script, which
uses ethtool to apply the correct parameter during the boot
**) First I tried 1.11.3, i.e. the plain Jessie packet.
Then I compiled 1.11.4 - a lengthy undertaking on Debian,
as one has to find a lengthy amount of required packages...
apt-get install libtalloc-dev tdb-dev libtevent-dev \
libldb-dev libdhash-dev libcollection-dev libini-config-dev \
libpcre3-dev libc-ares-dev samba-dev libglib2.0-dev \
libdconf-dbus-1-dev xsltproc libxml2-utils libselinux1-dev \
libsemanage1-dev libnss3-dev libsasl2-dev
But the issues apparently weren't related to the version
More information about the samba