While working in isolated environment you might need to share your machine internet connection with other computers or virtual machines (e.g. host only network in
VirtualBox). Ensure you have
iptables installed.
apt-get install iptables
There are two thing we need to do: let kernel know that it is permitted to forward network traffic.
echo "sysctl net.ipv4.ip_forward=1" >> \
/etc/sysctl.d/ip_forward.conf
and apply masquerading for the interface that we what to share (eth0), add the following line to
/etc/rc.local:
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
You have to restart your computer so the changes take place during the next system boot.
Posts
Not sure why you'd need to restart here - just also execute :
ReplyDeleteecho 1 > /proc/sys/net/ipv4/ip_forward
This is just to ensure nothing breaks after reboot. Note, the changes in /etc/rc.local. Alternatively use the following to apply changes on fly (without restart):
Deletesysctl -f /etc/sysctl.d/ip_forward.conf