Cara Mempercepat Koneksi Internet Di Linux, Ubuntu, Backtrack

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Pertama kita back-up file aslinya dulu dengan ketik:
root@bt:~#sudo cp /etc/sysctl.conf  /etc/sysctl.conf.backup

jadi setting aslinya terdapat pada  /etc/sysctl.conf.backup jika suatu saat ingin dikembalikan tinggal dicopy ke directory aslinya.

sekarang ketikkan perintah
root@bt:~#sudo gedit /etc/sysctl.conf

copy paste kode berikut ini di akhir file yang kita edit

# 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

Simpan kemudia exit.
Ketikkan perintah berikut untuk apply.
root@bt:~#sudo sysctl -p 

Sekarang coba berinternet dan nikmati perubahannya.
Sekian, semoga bermanfaat.^^