Linux itu super duper hemat memory

tampilan pemakaian memory setelah membuka hampir 30 aplikasi

Cara Mudah Mengganti Login Background Ubuntu 11.10

1. download Aplikasi Download Simple LightDM Manager
2. Instal aplikasi bisa di klik 2x atau melalui terminal
3. sudo dpkg -i simple-lightdm-manager_0.2-public4ubuntu1_all.deb
   
4. kalau muncul error silahkan fix kan dengan perintah
sudo apt-get install -f

Aplikasinya juga bisa di download disini

Sumber : OMG! Ubuntu!

Mengoptimalkan Koneksi Internet Linux mu

1. Buka Terminal : Application -> Accessories -> Terminal
2. Buka file sysclt.conf dengan cara ketik : sudo gedit /etc/sysctl.conf
3. Copy teks dibawah ini lalu pastekan pada baris terakhir sysctl.conf

# increase TCP max buffer size setable using setsockopt()
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
# increase Linux autotuning TCP buffer limits
# min, default, and max number of bytes to use
# set max to at least 4MB, or higher if you use very high BDP paths
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
# don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
# recommended to increase this for 1000 BT or higher
net.core.netdev_max_backlog = 2500
# for 10 GigE, use this, uncomment below
# net.core.netdev_max_backlog = 30000
# Turn off timestamps if you're on a gigabit or very busy network
# Having it off is one less thing the IP stack needs to work on
#net.ipv4.tcp_timestamps = 0
# disable tcp selective acknowledgements.
net.ipv4.tcp_sack = 0
#enable window scaling
net.ipv4.tcp_window_scaling = 1

4. Simpan hasil editan diatas dengan cara tekan keyboard Ctrl + S, kemudian tekan Alt + F4 untuk keluar
5. Aktifkan settingan diatas dengan cara ketik : sudo sysctl -p

Sumber: ayo belajar linux