Internet Connection Share on Linux(ArchLinux)

Internet ConnectionShare on Linux

(tested in archlinux)


you must have more thanone network card in you host computer

mine one wired Gigabitcard, another a wireless card

I used the wirelesscard connecting to the internet work, so there is a ppp0 connection


wired card config :

ip: 192.168.1.1/24

wireless card get theip just from the wireless AP


then the other computerthat you want to share connection with must connect to you wired cardan hava this configration :

ip: 192.168.1.2/24

gateway: 192.168.1.1



Nat Sharing Steps:

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

iptables -F

iptables -P INPUTACCEPT

iptables -P FORWARDACCEPT

iptables -t nat -APOSTROUTING -o ppp0 -j MASQUERADE

rc.d save iptables

rc.d start iptables


#you can also share youethernet connection, to do so just replace ppp0 by ethx



#get the DNS Server

(your must first sufferthe internet first)

cat /etc/resolv.conf


#then set the output tothe sharing computer's /etc/resolv.conf file

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