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Chapter 13, Build a Security System

Now, we’ll write a batch file that uses the ECHO command to create a text

file, and then calls the FTP command. It would be nice to create a log of the

movies that we uploaded, so we’ll echo the filename, date, and time to a text

file. Save this file as

C:\homehacking\security\sendfile.bat.

echo open ftp.northrup.org> upload-movie.txt

echo SecurityUpload>> upload-movie.txt

echo MyP@55w0rd>> upload-movie.txt

echo binary>> upload-movie.txt

echo send %1>> upload-movie.txt

echo close>> upload-movie.txt

echo quit>> upload-movie.txt

ftp -s:upload-movie.txt

echo File %1 sent at %date% %time%>>C:\homehacking\security\ftplog.txt

Again, replace the hostname, port number (2121 in the example), user-

name, and password with the values you created earlier in this phase. Now,

you can upload the file to your friend’s computer with a single command,

such as:

C:\homehacking\security\Sendfile.bat movie.mpg

Arming

The challenge of security is striking a balance between denying access to

unauthorized users while minimizing the inconvenience imposed upon

authorized users. In the context of home security, you need to allow your

family to arm the alarm system when they leave the house or go to bed, and

disarm it when they enter the house or wake up in the morning. Traditional

alarm systems use a digital keypad, and when someone needs to arm or

disarm