Add section to use Google DNS and fix errors

README.md

@@ -1,2 +1,43 @@
 # UnblockDomains
-Scripts for unblock domains
+OpenWRT scripts for unblock domains 
+
+# How to use
+Few steps
+
+## 1. Install OpenVPN
+Install OpenVPN into OpenWRT device
+
+## 2. Install package bind-hos
+```sh
+opkg update
+opkg install bind-host
+```
+
+## 3. Copy scripts into router
+From host mashine
+```sh
+scp unblocker.sh /etc/openvpn/unblocker.sh
+```
+
+### Set executable flag
+In router
+```sh
+chmod +x unblocker.sh
+```
+
+
+## 4. Add settings and domain configuration files
+Run in folder with scripts
+```sh
+echo TUN=`ifconfig | grep tun | awk '{print $1}'` > settings.conf
+touch domains.conf
+```
+
+## 5. Add domains
+Add list of domains into `domains.conf`
+
+## 6. Run script
+```sh
+./unblocker.sh
+```
+

unblocker.sh

@@ -1,7 +1,7 @@
-#!/bin/bash
+#!/bin/sh
 
 ## Intial settings
-SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+SCRIPT_DIR=`pwd`
 CONFIG_PATH="$SCRIPT_DIR/settings.conf"
 DOMAINS_PATH="$SCRIPT_DIR/domains.conf"
 
@@ -25,17 +25,22 @@ if [ ! -f "$DOMAINS_PATH" ]; then
     exit 1
 fi
 
+## Add Google DNS into route table
+route add 8.8.8.8/32 dev $TUN;
+route add 8.8.4.4/32 dev $TUN;
+route add 77.88.8.8/32 dev $TUN;
+
 ## Process domains
 while read -r DOMAIN
 do
     echo "Start to process domain [$DOMAIN]..." >&2
 
-    DOMAIN_IPS="$(host -t a "$DOMAIN" | awk '{print $4}' | egrep ^[1-9] | sort | uniq)"
+    DOMAIN_IPS="$(host -t a "$DOMAIN" | awk '{print $4}' | egrep ^[1-9] | awk -F. '{print $1"."$2"."$3".0/24"}' | sort | uniq)"
 
-    for IP in ${DOMAIN_IPS[*]}
+    for IP in ${DOMAIN_IPS}
     do
         echo " * Adding route for IP [$IP]"
-        #route add -net "$IP" dev "$TUN"
+        route add -net "$IP" dev "$TUN"
     done
 
     echo "End of process domain [$DOMAIN]" >&2