Initial commit

05ade3f9 · markus · 05ade3f9 · 05ade3f9 · 05ade3f9 · 05ade3f9
Commit 05ade3f9 authored Jun 04, 2019 by markus
7 changed files
--- a/README
+++ b/README
+# DNS Visualisation
+
+This repository contains a set of config files and scripts for visualising network traffic seen by a router, especially DNS queries.
--- a/dns.html
+++ b/dns.html
+<head>
+  <meta http-equiv="refresh" content="1;" />
+</head>
+<body>
+  <img src="graph.svg" width="100%" height="100%"/>
+</body>
--- a/dnsmasq.conf
+++ b/dnsmasq.conf
+log-facility=/var/log/dnsmasq.log
+interface=wlan0
+dhcp-range=10.0.0.10,10.0.0.250,12h
+dhcp-option=3,10.0.0.1
+dhcp-option=6,10.0.0.1
+
+log-queries=extra
--- a/graph_loop.sh
+++ b/graph_loop.sh
+#!/usr/bin/env bash
+
+while true
+do
+  awk '  BEGIN {printf "digraph dns_graph {\n"} /query/ {print "    \""$10"\" -> \""$8"\";"; ++cnt} END {printf "    \"Total\" -> \"" cnt "\";\n}\n"}' /var/log/dnsmasq.log > res.dot && dot -Tsvg -Ksfdp -p graph.svg res.dot
+  sleep 0.5
+done
--- a/hostapd.conf
+++ b/hostapd.conf
+interface=wlan0
+driver=nl80211
+ssid=WLAN-8243
+channel=6
+
+wpa=2
+auth_algs=1
+
+rsn_pairwise=CCMP
+wpa_key_mgmt=WPA-PSK
+wpa_passphrase=einPasswort
--- a/iptables.rules
+++ b/iptables.rules
+*nat
+:PREROUTING ACCEPT [0:0]
+:INPUT ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+:POSTROUTING ACCEPT [0:0]
+-A POSTROUTING -o eth0 -j MASQUERADE
+COMMIT
+*filter
+:INPUT ACCEPT [0:0]
+:FORWARD ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+-A FORWARD -i wlan0 -o eth0 -j ACCEPT
+COMMIT
--- a/setup.sh
+++ b/setup.sh
+#!/usr/bin/env bash
+
+iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+
+ip addr add 10.0.0.1/24 dev wlan0
+echo '1' > /proc/sys/net/ipv4/ip_forward
+
+nmcli r wifi off
+rfkill unblock wifi
+
+apt-get install -y hostapd dnsmasq etherape
+
+systemctl unmask hostapd
+
+mkdir -p /etc/hostapd
+
+cp hostapd.conf /etc/hostapd/
+cp dnsmasq.conf /etc/
+
+systemctl start hostapd
+systemctl start dnsmasq