Share internet with openVPN [closed]

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I have setup a openVPN server on my centOS server. What I would like to do is use the internet of this centOS server form my macbook

On my mac i have installed and perfectly configured tunnelblick (i have imported the client.conf + the appropriate cert..) And im able to connect to my VPN server

But if a try to go on website that show my IP it doesn't work, I still have my local internet IP address. I would like to have the one of my server. How do i do that?

Thank you

Answer 1

To do what you want you don't need to use a VPN... I suppose your server has openSSH. SO what you can do is a SSH tunnel

ssh -D login:server 1080:localhost:1080

The in your broswer config, set the "socks" to localhost:1080

try to go on http://whatsmyip.com and bingo all the trafic on your server will be redireected to yours machine

Answer 2

There are some changes to do in CentOS:

First, forwarding needs to be active on the CentOS server:

sysctl -w net.ipv4.ip_forward=1
sysctl -p /etc/sysctl.conf

Change the gateway to the LAN gateway. In OpenVPN configuration put:

push "redirect-gateway def1"

And the DNS:

push "dhcp-option DNS 192.168.1.2"

And finally, use NAT/MASQUERADE for the VPN network (output to Internet via eth0)

iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE