The Cheap Raspberry Pi Security Camera

One of the great things about the Raspberry Pi is the community that works to create really great projects. I have setup a Raspberry Pi B looking out my windows. It faces the front door so can see anyone coming down the street and toward the door. I had a couple cheap $2 webcams lying around so I set them up looking out the windows. The total cost of the entire setup is about $10, minus the cost of the Pi itself, I also think that the Pi is a little underpowered for the task as occasionally the thing will stop… Continue reading The Cheap Raspberry Pi Security Camera

Using Hashlib to Securely store user passwords and credentials.

What is hashing? Hashing a password means that users cannot have their passwords compromised when a database engineer is reading cleartext in user databases (to a degree, the passwords could be decoded, but hashing them makes them illegible to someone who is not doing anything extensive). And also prevents hackers from reading passwords in plain text and can be compromised by collision attacks. Additionally when hashing a password a salt may be added to the password, this prevents a database from being attacked by dictionary attacks. Why Hash Passwords? Storing User credentials in Plain Text is generally as bad practice as it allows… Continue reading Using Hashlib to Securely store user passwords and credentials.

Raspberry Pi – PHP permission File Problems Solved!

I recently installed php, but when I was unable to save files, I was very stuck, and that’s why I’m posting it here, I want to tell anyone who Googles this problem to find this solution. The problem was when I used an fopen and fsave within php, the file would always ‘die’ as in the open or die within php. The solution is below Firstly I looked for the Environment user in phpinfo() in my case it was www-data and then I simply typed this chmod 777 -R www-data /var/www that, in its simplicity is the solution, but I am… Continue reading Raspberry Pi – PHP permission File Problems Solved!