sudo su
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apt-get purge consolekit desktop-base* desktop-file-utils* gnome-icon-theme* gnome-themes-standard* hicolor-icon-theme* leafpad* lxde* lxde-core* midori* xserver-common* xserver-xorg* xserver-xorg-core* xserver-xorg-input-all* xserver-xorg-input-evdev* xserver-xorg-input-synaptics* xserver-xorg-video-fbdev*
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apt-get -y update && apt-get -y dist-upgrade && apt-get -y autoremove && apt-get -y autoclean
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apt-get install dropbear openssh-client
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/etc/init.d/ssh stop
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sed -i 's/NO_START=1/NO_START=0/g' /etc/default/dropbear
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/etc/init.d/dropbear start
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apt-get purge openssh-server
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dpkg-reconfigure dash
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sed -i '/[2-6]:23:respawn:\/sbin\/getty 38400 tty[2-6]/s%^%#%g' /etc/inittab
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gpu_mem=16
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echo "net.ipv6.conf.all.disable_ipv6=1" > /etc/sysctl.d/disableipv6.conf
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echo 'blacklist ipv6' >> /etc/modprobe.d/blacklist
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sed -i '/::/s%^%#%g' /etc/hosts
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reboot
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pi@shemp ~ $ free -h
total used free shared buffers cached
Mem: 485M 38M 447M 0B 7.4M 17M
-/+ buffers/cache: 14M 471M
Swap: 99M 0B 99M
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pi@raspberrypi ~ $ free -h
total used free shared buffers cached
Mem: 438M 107M 330M 0B 9.5M 74M
-/+ buffers/cache: 24M 414M
Swap: 99M 0B 99M