Seputar.linux.network.hacker.

Pada waktu kita menginstall ubuntu repository default untuk update adalah dengan alamat repository :

deb http://security.ubuntu.com/ubuntu feisty-security main restricted
deb-src http://security.ubuntu.com/ubuntu feisty-security main restricted
deb http://security.ubuntu.com/ubuntu feisty-security universe
deb-src http://security.ubuntu.com/ubuntu feisty-security universe
deb http://security.ubuntu.com/ubuntu feisty-security multiverse
deb-src http://security.ubuntu.com/ubuntu feisty-security multiverse

Bisa anda lihat dengan perintah:
1. sudo gedit etc\apt\source.list

apabila anda menggunakan alamat repository default dari ubuntu ini, pada waktu anda update "apt-get update"
maka koneksi untuk update tersebut cukup lambat.

untuk itu sebaiknya anda merubah repository default ubuntu ini dengan repository lokal yakni:
kambing.vlsm.org

langkah-langkahnya:
1. sudo gedit etc\apt\source.list
- Pastekan alamat/kode berikut ke file source.lst

## Use the following sources.list at your own risk.

deb http://kambing.vlsm.org/ubuntu feisty main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty main restricted universe multiverse

## MAJOR BUG FIX UPDATES produced after the final release
deb http://kambing.vlsm.org/ubuntu feisty-updates main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-updates main restricted universe multiverse

## UBUNTU SECURITY UPDATES
deb http://kambing.vlsm.org/ubuntu feisty-security main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-security main restricted universe multiverse

## BACKPORTS REPOSITORY (Unsupported. May contain illegal packages. Use at own risk.)
deb http://kambing.vlsm.org/ubuntu feisty-backports main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-backports main restricted universe multiverse

2. repository default ubuntu yang dijelaskan tadi cukup anda tambahkan tanda " # " agar sewaktu ada error sewaktu meng -update maka cukup hapus alamat kambing vlsm tadi dan alamat default ubuntu tadi masih dapat dipakai dengan menghapus tanda " # "yang tadi digunakan.
- tanda pagar digunakan untuk tidak mengktifkan alamat repository default ubuntu

Sehingga Menjadi :

# deb http://security.ubuntu.com/ubuntu feisty-security main restricted
# deb-src http://security.ubuntu.com/ubuntu feisty-security main restricted
# deb http://security.ubuntu.com/ubuntu feisty-security universe
# deb-src http://security.ubuntu.com/ubuntu feisty-security universe
# deb http://security.ubuntu.com/ubuntu feisty-security multiverse
# deb-src http://security.ubuntu.com/ubuntu feisty-security multiverse

## Use the following sources.list at your own risk.

deb http://kambing.vlsm.org/ubuntu feisty main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty main restricted universe multiverse

## MAJOR BUG FIX UPDATES produced after the final release
deb http://kambing.vlsm.org/ubuntu feisty-updates main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-updates main restricted universe multiverse

## UBUNTU SECURITY UPDATES
deb http://kambing.vlsm.org/ubuntu feisty-security main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-security main restricted universe multiverse

## BACKPORTS REPOSITORY (Unsupported. May contain illegal packages. Use at own risk.)
deb http://kambing.vlsm.org/ubuntu feisty-backports main restricted universe multiverse
deb-src http://kambing.vlsm.org/ubuntu feisty-backports main restricted universe multiverse

kemudian:
sudo apt-get update

Selamat Mencoba....
kalau ada kesalahan tolong di comment....