* remove unwanted service
http://www.hecticgeek.com/2012/06/few-things-to-speed-up-ubuntu/
* compiz and unity-tweak-tool
sudo apt-get install unity-tweak-tool
sudo apt-get install unity-webapps-common
unity-tweak-tool &
> Window Manager > General >
General > Window snapping > turn off
General > General > turn off [Animations]
** disabling-zeitgeist
http://askubuntu.com/questions/45548/disabling-zeitgeist
zeitgeist-daemon --quit
cd /usr/bin/
sudo mv zeitgeist-daemon zeitgeist-daemon.bak
sudo mv zeitgeist-datahub zeitgeist-datahub.bak
* disable avahi
from: http://askubuntu.com/questions/339702/network-service-discovery-disabled-what-does-this-mean-for-me
- Network service discovery disabled: What does this mean for me?
Every time at boot I get a message “Network service discovery disabled. Your current network has a .local domain, which is not recommended and incompatible with the Avahi network service discovery. The service has been disabled.”
A-1.
It looks like avahi-daemon is started when the network connection is established
(/etc/network/if-up.d/avahi-daemon). This notification is informing you that
mDNS (Avahi) has been disabled. It's only used for a small number of
applications that only work on the local network, it won't adversely affect your
internet connection or DNS. The most well known use for mDNS is sharing music
with Rhythmbox (or iTunes) over your LAN. It's an Apple technology, but it's
largely been ignored in favour of uPNP or DLNA.
To disable it, you must edit the file /etc/default/avahi-daemon as root:
sudo -i
gedit /etc/default/avahi-daemon
and add this line (or change it if already exists to):
AVAHI_DAEMON_DETECT_LOCAL=0
Source: http://ubuntuforums.org/showthread.php?t=1632952
A-2.
According to the Avahi wiki there are two workarounds:
In /etc/avahi/avahi-daemon.conf uncomment and change the line with domain name to
domain-name=.alocal
Second one:
In /etc/nsswitch.conf delete a [NOTFOUND=return] text.
* disableDeja-dup backup
sudo apt-get autoremove deja-dup
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