Xubuntu 14.04 installation guidelines¶
The distribution GNU/Linux Xubuntu 14.04 has been chosen for several reasons: long term support (until 2017), active community, light desktop environment, available binary packages from Ettus Research.During the installation process, the following partitioning is recommended:
- primary SWAP, 1 GB;
- primary ext4, /, 40 GB;
- secondary ext4, /home, (remaining space).
Once the installation is performed, it is assumed to realize the following operations using a root shell (
sudo -s). If necessary, a proxy will be set through appropriate environment variables:
export http_proxy=http://host:port export https_proxy=http://host:port
Additional packages installation¶
Update the package list.
Install the following additional packages.
apt-get install texlive-full texstudio auctex wireshark filezilla \ openssh-server vlc octave-communications subversion git thunar-vcs-plugin \ xfce4-goodies arandr libreoffice-l10n-fr synaptic evince xournal \ eog python-matplotlib python-scipy ctags doxygen ntpdate libpam-ldap nscd screen \ htop inkscape filezilla gparted libfftw3-3 libfftw3-dev git-core
Any modification to the
sudo configuration should be performed through the following command.
Append the following line in order to preserve environment variables
Defaults env_keep += "http_proxy https_proxy"
Enable root account and install public keys¶
On Ubuntu systems, the root account is not enabled by default, enabling is done by setting a password.
Then assume that SSH is installed and enabled. Public keys to install are supposed to be in file <my_public_keys>. They have to be deployed in the following way.
cd /root mkdir .ssh cp <my_public_keys> /root/.ssh/authorized_keys chmod -R 700 .ssh/
Enable LDAP authentication¶
In order to authenticate through the network using LDAP, it is necessary to install the following package.
apt-get install libpam-ldap
At the end of the installation, an interactive configuration process is triggered. It can called back using the following instruction.
ldap module to the first three instructions in
/etc/nsswitch.conf in order to obtain something like this:
passwd: ldap compat group: ldap compat shadow: ldap compat
In case of successful login, add the following line to
/etc/pam.d/common-session in order to create automatically the home directory.
session required pam_mkhomedir.so skel=/etc/skel umask=0022
Finally, restart the
In order to synchronize the real time clock through the network, install the following package.
apt-get install ntpdate
If applicable, add local NTP servers to
/etc/default/ntpdate. Then trigger the first synchronization.
Notice that NTP synchronization is performed at each network interface bootup.