Sharing jaringan Ubuntu (wifi dan LAN))
share jaringan modem smartfren os ubuntu di netbuk / laptop

Tahap Instalasi (Hanya 1x)



semua perintah di bawah dijalankan dengan hak akses root



Cek apakah hardware nya mendukung
Code:


iw list



Cek output berikut harus ada
Code:


Supported interface modes:


* AP



Install paket yang dibutuhkan
Code:


apt-get install hostapd dnsmasq


Khusus Ubuntu 12.04, matikan dnsmasq bawaan network-manager


# cat /etc/NetworkManager/

NetworkManager.conf
Code:


[main]


plugins=ifupdown,keyfile


dns=dnsmasq


kasih # pada dns=dnsmasq


# cat /etc/NetworkManager/

NetworkManager.conf
Code:


[main]


plugins=ifupdown,keyfile


#dns=dnsmasq



Restart Network Manager
Code:


service network-manager restart



Bikin DNS dan DHCP Server

# cat /etc/dnsmasq.conf
Code:


domain-needed


bogus-priv


filterwin2k


strict-order


interface=wlan0


no-resolv


no-poll


no-hosts


dns-forward-max=8192


neg-ttl=3600


max-ttl=3600


local-ttl=3600


cache-size=8192


server=8.8.8.8


server=8.8.4.4


all-servers


log-queries


log-facility=/var/log/dnsmasq.log


dhcp-leasefile=/var/log/dnsmasq.leases


dhcp-range=192.168.0.50,192.168.0.250


dhcp-lease-max=200


dhcp-option=3,192.168.0.1


dhcp-option=option:router,192.168.0.1


dhcp-option=40,FREE_HOTSPOT



Restart dnsmasq server
Code:


service dnsmasq restart



Bikin configurasi hostapd

# cat /etc/hostapd/hostapd.conf
Code:


interface=wlan0


ssid=compaq


hw_mode=g


channel=1



Tahap Running

dijalankan setiap akan mensharing, jalankan dengan hak akses root
Code:


service dnsmasq restart


ifconfig wlan0 192.168.0.1


iwconfig wlan0 channel 1


echo "1" > /proc/sys/net/ipv4/ip_forward


iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE


hostapd /etc/hostapd/hostapd.conf



<code>

#!bin/bash

ifconfig wlan0 192.168.0.1

sleep 1

iwconfig wlan0 channel 1

sleep 1

echo "1" > /proc/sys/net/ipv4/ip_forward

sleep 1

iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE

sleep 1

hostapd /etc/hostapd/hostapd.conf

</code>

NB:

ppp0 adalah interface modem, sesuaikan dengan interface anda

command Tahap Running bisa dibuat bashscript, jadi tidak perlu mengetik ulang sebanyak itu

http://m.kaskus.co.id/post/000000000000000740559602#000000000000000740559602
=======================================


== Setting Linux sebagai Gateway



1. Konekkan modem usb.

2, lakukan setting interface jaringan ethernet (eth0)

di Linux seperti konfigurasi sebagai berikut:

IP address: 192.168.1.1.
Netmask: 255.255.255.0.



tambahkan dns server di linux kamu :

# nano /etc/resolv.conf

nameserver 8.8.8.8
nameserver 8.8.4.4


coba dengan ping google: ping www.google.com



3. setting IP Forwarding
# echo “1” > /proc/sys/net/ipv4/ip_forward



4. Atur fasilitas NAT (Network Adddress Translation) di Linux

dengan iptables dan MASQUERADE, sehingga klien ketika

mengakses jaringan lain atau Internet akan menggunakan

alamat IP yang dimilki server. Perintahnya adalah:

# iptables -t nat -A POSTROUTING -d 0/0 -o ppp0 -j
MASQUERADE



5. Atur IP di komputer Client seperti dibawah ini

Ip address: 192.168.1.2

Netmask: 255.255.255.0

Gateway: 192.168.1.1

DNS primary: 8.8.8.8
DNS Secondary: 8.8.4.4