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Update howto-transparent-vms.md for newer versions (#3597)

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Update howto-transparent-vms.md for newer versions
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Nirusu 2019-09-30 11:41:49 +02:00 committed by Thomas Kriechbaumer
parent 965dd3cfb5
commit 7ef91f46a3
1 changed files with 10 additions and 4 deletions
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@ -14,9 +14,13 @@ Internal Network* setup can be applied to other setups.
## 1. Configure Proxy VM
On the proxy machine, **eth0** is connected to the internet. **eth1** is
connected to the internal network that will be proxified and configured
to use a static ip (192.168.3.1).
First, we have to find out under which name Ubuntu has mapped our network interfaces. You can find this information with:
{{< highlight bash >}}
ip link
{{< / highlight >}}
Usually with Ubuntu and Virtualbox, **eth0** or **enp0s3** (Ubuntu 15.10 and newer) is connected to the internet and **eth1** or **enp0s8** (Ubuntu 15.10 and newer) is connected to the internal network that will be proxified and configured to use a static ip (192.168.3.1). If the names differ, use the ones you got from the *ip link* command.
### VirtualBox configuration
@ -65,6 +69,7 @@ Replace **/etc/dnsmasq.conf** with the following configuration:
{{< highlight none >}}
# Listen for DNS requests on the internal network
interface=eth1
bind-interfaces
# Act as a DHCP server, assign IP addresses to clients
dhcp-range=192.168.3.10,192.168.3.100,96h
# Broadcast gateway and dns server information
@ -93,10 +98,11 @@ IP address via DHCP:
## 3. Redirect traffic to mitmproxy
To redirect traffic to mitmproxy, we need to add two iptables
To redirect traffic to mitmproxy, we need to enable IP forwarding and add two iptables
rules:
{{< highlight bash >}}
sudo sysctl -w net.ipv4.ip_forward=1
sudo iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 8080
sudo iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 443 -j REDIRECT --to-port 8080
{{< / highlight >}}