May 102016
 

required: inotify-tools

first create this bash script, let’s name it as transport.sh

#!/bin/bash
while true; do
	inotifywait -e modify /etc/postfix/transport
	postmap hash:/etc/postfix/transport
done

make it executable

chmod 755 transport.sh

run the script

./transport.sh > /dev/null 2>&1&

this script will stay on background proccess.

try modify transport file

dd.com smtp:[x.x.x.x]:25
ee.com smtp:[x.x.x.x]:25

save it, and test it

postmap -q ee.com hash:/etc/postfix/transport
smtp:[x.x.x.x]:25

enjoy

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Apr 142016
 

i have already made this project previuosly using arduino uno, wiznet w5100 ethernet shield and 4 channel relay shield. But using Arduino nano + ENC29J60 lot cheaper. not mention it has smaller size. Once you get this badboy online on your network, you can control every device in your house using your smartphone or any gadget you have(that rely on your coding skill, ofcourse).

let’s the fun begin 🙂

wait, as usual i don’t do lots of talk so here’s the schematic and arduino code.

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