Tanya 214 : Berselancar dengan IP “Palsu”

Tanya :

Saya sudah baca Tanya 213 : Memalsukan IP saat Mengakses SSH, Bisakah saya berselancar (menggunakan Firefox) dengan Tor agar IP address asli saya juga tersembunyikan ? Saya menggunakan Ubuntu Lucid

Jawab :

Bisa,

Berikut tahap-tahap dari awal untuk memasang, mengaktifkan serta menambahkan Tor di Firefox :

Instalasi Tor :

Keterangan : Tor adalah Onion Router generasi kedua. Dapat kita install dengan :

sudo apt-get install tor
sudo apt-get install tor-geoipdb

Instalasi Polipo

Keterangan : Polipo adalah caching web proxy. Dapat kita install dengan perintah :

sudo apt-get install polipo

Konfigurasi Polipo

Pertama, untuk berjaga-jaga backup dulu file /etc/polipo/config

sudo cp /etc/polipo/config /etc/polipo/config.orig

Lalu edit file /etc/polipo/config – ganti dengan isi konfigurasi seperti berikut ini :

### Basic configuration
### *******************

# Uncomment one of these if you want to allow remote clients to
# connect:

# proxyAddress = "::0"        # both IPv4 and IPv6
# proxyAddress = "0.0.0.0"    # IPv4 only

proxyAddress = "127.0.0.1"
proxyPort = 8118

# If you do that, you'll want to restrict the set of hosts allowed to
# connect:

# allowedClients = "127.0.0.1, 134.157.168.57"
# allowedClients = "127.0.0.1, 134.157.168.0/24"

allowedClients = 127.0.0.1
allowedPorts = 1-65535

# Uncomment this if you want your Polipo to identify itself by
# something else than the host name:

proxyName = "localhost"

# Uncomment this if there's only one user using this instance of Polipo:

cacheIsShared = false

# Uncomment this if you want to use a parent proxy:

# parentProxy = "squid.example.org:3128"

# Uncomment this if you want to use a parent SOCKS proxy:

socksParentProxy = "localhost:9050"
socksProxyType = socks5

### Memory
### ******

# Uncomment this if you want Polipo to use a ridiculously small amount
# of memory (a hundred C-64 worth or so):

# chunkHighMark = 819200
# objectHighMark = 128

# Uncomment this if you've got plenty of memory:

# chunkHighMark = 50331648
# objectHighMark = 16384

chunkHighMark = 67108864

### On-disk data
### ************

# Uncomment this if you want to disable the on-disk cache:

diskCacheRoot = ""

# Uncomment this if you want to put the on-disk cache in a
# non-standard location:

# diskCacheRoot = "~/.polipo-cache/"

# Uncomment this if you want to disable the local web server:

localDocumentRoot = ""

# Uncomment this if you want to enable the pages under /polipo/index?
# and /polipo/servers?.  This is a serious privacy leak if your proxy
# is shared.

# disableIndexing = false
# disableServersList = false

disableLocalInterface = true
disableConfiguration = true

### Domain Name System
### ******************

# Uncomment this if you want to contact IPv4 hosts only (and make DNS
# queries somewhat faster):
#
# dnsQueryIPv6 = no

# Uncomment this if you want Polipo to prefer IPv4 to IPv6 for
# double-stack hosts:
#
# dnsQueryIPv6 = reluctantly

# Uncomment this to disable Polipo's DNS resolver and use the system's
# default resolver instead.  If you do that, Polipo will freeze during
# every DNS query:

dnsUseGethostbyname = yes

### HTTP
### ****

# Uncomment this if you want to enable detection of proxy loops.
# This will cause your hostname (or whatever you put into proxyName
# above) to be included in every request:

disableVia = true

# Uncomment this if you want to slightly reduce the amount of
# information that you leak about yourself:

# censoredHeaders = from, accept-language
# censorReferer = maybe

censoredHeaders = from,accept-language,x-pad,link
censorReferer = maybe

# Uncomment this if you're paranoid.  This will break a lot of sites,
# though:

# censoredHeaders = set-cookie, cookie, cookie2, from, accept-language
# censorReferer = true

# Uncomment this if you want to use Poor Man's Multiplexing; increase
# the sizes if you're on a fast line.  They should each amount to a few
# seconds' worth of transfer; if pmmSize is small, you'll want
# pmmFirstSize to be larger.

# Note that PMM is somewhat unreliable.

# pmmFirstSize = 16384
# pmmSize = 8192

# Uncomment this if your user-agent does something reasonable with
# Warning headers (most don't):

# relaxTransparency = maybe

# Uncomment this if you never want to revalidate instances for which
# data is available (this is not a good idea):

# relaxTransparency = yes

# Uncomment this if you have no network:

# proxyOffline = yes

# Uncomment this if you want to avoid revalidating instances with a
# Vary header (this is not a good idea):

# mindlesslyCacheVary = true

# Suggestions from Incognito configuration
maxConnectionAge = 5m
maxConnectionRequests = 120
serverMaxSlots = 8
serverSlots = 2
tunnelAllowedPorts = 1-65535

Simpan kembali file /etc/polipo/config tersebut.

Menjalankan Tor dan Polipo

Jalankan Tor dan Polipo dengan perintah

sudo /etc/init.d/tor start
sudo /etc/init.d/polipo start

Cek apakah sudah berjalan

Mari kita cek apakah Tor dan Polipo sudah berjalan di port 9050, lakukan dengan perintah

ss -aln | grep 9050

Jika anda mendapati keluaran seperti contoh :

0      128                    127.0.0.1:9050                          *:*

Maka berarti Tor dan Polipo sudah berjalan.

Menambahkan Add-On Tor Button di Firefox

Selanjutnya kita akan menambahkan add-on Tor Button di Firefox.

Download add-on tersebut di : https://www.torproject.org/dist/torbutton/torbutton-current.xpi

Install dan restart firefox anda, maka di sudut kanan bawah anda akan mendapatkan Tulisan seperti tampak pada screenshot berikut :

Untuk mengaktifkan, cukup klik tulisan itu. Lalu pilih Toogle for Status

Tanda bahwa Tor Anda telah aktif, tulisan berubah menjadi Hijau :

Kini coba test apakah Tor sudah aktif dengan mengunjungi situs uji : https://check.torproject.org/

Jika sudah aktif, maka halaman yang muncul adalah seperti berikut :

Lalu kita lihat berapa IP yang kita gunakan dengan mengunjungi situs http://whatismyipaddress.com

Vidalia : GUI untuk Tor (Opsional)

Anda juga dapat mengistall GUI untuk Tor, misalnya Vidalia, Install dengan perintah :

sudo apt-get install vidalia

Demikian selamat mencoba. Semoga bermanfaat (rezaervani@gmail.com)

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