====== Debian post install ======
{{tag>postinstall debian}}

===== Network =====
    lspci command : List all PCI devices.
    lshw command : List all hardware.
    dmidecode command : List all hardware data from BIOS.
    ifconfig command : Outdated network config utility.
    ip command : Recommended new network config utility.
    
    
    apt-get install ssh openssh-server
    apt-get install vim-nox sudo 
    
    apt-get install ntp ntpdate
    
    apt-get install wpasupplicant iw
    
==== wpa_supplicant ====
    cp /usr/share/doc/wpa_supplicant/xxx /etc/wpa_supplicant/wpa_supplicant.conf

/etc/wpa_supplicant/wpa_supplicant.conf”. Note the lack of space in “network={“.

<code>
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
    ssid="Your SSID Here"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP TKIP
    group=CCMP TKIP
    psk="YourPresharedKeyHere"
}

</code>

“/etc/network/interfaces”. For a static IP, it will look like this:

<code>
# allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet static
    address 10.1.2.20
    netmask 255.255.255.0
    network 10.1.2.0
    gateway 10.1.2.1
</code>

For DHCP, it will look like this:

<code>
# allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
</code>

    # sudo ifdown wlan0
    # sudo ifup wlan0
    
    iwconfig

Debug
    
    # sudo /sbin/wpa_supplicant -P /var/run/wpa_supplicant.wlan0.pid -i wlan0 \
    -D nl80211,wext -c /etc/wpa_supplicant/wpa_supplicant.conf
===== Sudo =====
    apt-get install sudo
    
    build-essential autotools-dev cdbs check checkinstall dctrl-tools automake libtool
    libc6-dev subversion
    vim-nox tree

If 
    imadata@imadata-nb:~$ sudo su
    sudo: parse error in /etc/sudoers near line 8
    sudo: no valid sudoers sources found, quitting
    sudo: unable to initialize policy plugin
  
Then 
    pkexec nano /etc/sudoers
    
===== Software Packages: =====

    vi /etc/apt/sources.list
    replace jp with de!
    
    apt-get update
    
Hostname:
    vi /etc/hostname
    imavoyage

APT:
    apt-get install avahi-{autoipd,daemon,discover,utils}
    apt-get install build-essential autotools-dev cdbs check checkinstall dctrl-tools automake libtool libc6-dev subversion pkg-config strace gdb
    apt-get install vim-nox tree
    apt-get install locales
    apt-get install openjdk-6-jdk gcc libssl-dev libexpat1-dev libpcap-dev libxml2-utils ant1.8
   
GIT:
    sudo apt-get install git-core
        
ETCs:
    apt-get install libusb-{1.0-0-dev,1.0-0,libusb-dev}

==== Virtualization ====
        aptitude -y install qemu-kvm libvirt-bin virtinst bridge-utils uml-utilities
==== Cross compile ====
http://psas.pdx.edu/DebianCrossCompilerHowto/#index1h1
    
     sudo apt-get build-dep binutils gcc libncurses5-dev
    
==== Install fakeroot ====

fakeroot allows you to build packages without being root.

     sudo aptitude install fakeroot

==== Install dpkg-cross ====

dpkg-cross adds cross-compilation support to some of the basic Debian package tools. dpkg-cross can also convert packages designed for the target architecture into packages usable for cross-compilation to that architecture.

    sudo aptitude install dpkg-cross
    
===== Using X-server with VM =====
Install minimal X-server

<code>
sudo apt-get install --no-install-recommends xserver-xorg-core \
    xserver-xorg-input-all xserver-xorg-video-fbdev \
    xserver-xorg-video-intel 
    (yourcard, can be intel, nouveau, or ati)
</code>
    
Setup SSH X11Forwarding 


X11 forwarding needs to be enabled on both the client side and the server side.

On the client side, the -X (capital X) option to ssh enables X11 forwarding, and you can make this the default (for all connections or for a specific conection) with ForwardX11 yes in ~/.ssh/config.

On the server side, X11Forwarding yes must specified in /etc/ssh/sshd_config. Note that the default is no forwarding (some distributions turn it on in their default /etc/ssh/sshd_config), and that the user cannot override this setting.

The xauth program must be installed on the server side. If there are any X11 programs there, it's very likely that xauth will be there. In the unlikely case xauth was installed in a nonstandard location, it can be called through ~/.ssh/rc (on the server!).

Note that you do not need to set any environment variables on the server. DISPLAY and XAUTHORITY will automatically be set to their proper values. If you run ssh and DISPLAY is not set, it means ssh is not forwarding the X11 connection.

To confirm that ssh is forwarding X11, check for a line containing Requesting X11 forwarding in the ssh -v -X output. Note that the server won't reply either way.

===== Startup script =====

  * http://www.linux.com/news/enterprise/systems-management/8116-an-introduction-to-services-runlevels-and-rcd-scripts
  * https://www.debian-administration.org/articles/28
  * http://ubuntuforums.org/showthread.php?t=1899664


    cp /etc/init.d/skeleton /etc/init.d/nfcclient
    chmod +x /etc/init.d/nfcclient
    vim /etc/init.d/nfcclient
    
    ln -s /etc/init.d/nfcclient /etc/rc4.d/S18nfcclient
    # see cat /etc/rc4.d/README
    
    # obsolate: update-rc.d script defaults
    
You should be using

    insserv linknx
    find /etc/rc?.d|grep nfc

And not update-rc.d linknx defaults

As of Debian 6.0 (Squeeze), update-rc.d has been replaced with insserv (see here). Why? Because 6.0 introduced a new boot process, for which you have the headers in place (the INIT INFO section at the top of the script).

=== Working solution ===
Add the code below to your script in /etc/init.d, modify it to your needs, 

run insserv -n scriptname to verify that it will work, 
    insserv -n scriptname
then run insserv scriptname to make it all happen!
    insserv scriptname
    
<code>
    ### BEGIN INIT INFO
    # Provides:          scriptname  <-------- IMPORTANT!
    # Required-Start:    $all
    # Required-Stop:     $all
    # Default-Start:     2 3 4 5
    # Default-Stop:      0 1 6
    # Short-Description: Short script description
    # Description:       Longer script description.
    ### END INIT INFO
    
</code>

==== Modifying startup script ====

There is two ways:

The first is just to specify a numeric --retry value. Then it will use /signal/timeout/KILL/timeoutschedule. I.e. send a terminating signal (specified with--signal` option), then wait the specified number of seconds and then send a KILL signal that could not be ignored by a process and therefore it will be forced to exit. The command will look like:

     /sbin/start-stop-daemon --stop --signal TERM --retry 5 --quiet --oknodo --pidfile /var/run/redis/redis.pid --exec /usr/bin/redis-server

The second is to specify a complete schedule to the --retry option. It will look like:

     /sbin/start-stop-daemon --stop --retry TERM/5/KILL/10 --quiet --oknodo --pidfile /var/run/redis/redis.pid --exec /usr/bin/redis-server


==== Disable startup init.d script ====
     insserv -r service_name

====== Turn desktop to server ======
http://askubuntu.com/questions/413990/want-to-convert-ubuntu-12-04-desktop-to-server