1. edit /etc/mysql/my.cnf to remove the lock for localhost (127.0.0.1)

sudo nano +47 /etc/mysql/my.cnf
comment out the line (add a # at the VERY beginning of the line)

#bind-address = 127.0.0.1


2. edit /etc/hosts.allow to allow connections from your server (10.0.0.1 in this example – change it to the address you are connecting FROM). Note: “ALL” is too general, but I had trouble using “mysqld”, which was recommended.

sudo nano /etc/hosts.allow

scroll to the bottom and add:

ALL : 10.0.0.55

3. Add the user in mysql with the correct host identification. Enter mysql as root (mysql -u root -p) and do the following:

create user remoteguy@10.0.0.55 identified by 'l33ta0l';

4. You could restart your mysql and inet services, but i just restart the server – sometimes easier

NOW, go to the client (in this case, we’re calling it 10.0.0.55) and do, (we’re calling the mysql server 10.0.0.2) :

mysql -u remoteguy@10.0.0.55 -p -h 10.0.0.2


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The first valuable resource I found is wikipedia’s list of CMS’s, which is initially impressive, but I quickly found it overwhelming. To be perfectly honest, I don’t feel like sorting through a list of hundreds of CMS’s, I want a CMS that meets two sets of criteria: One, it has to meet my platform preferences, and two, it has to be in current cutting-edge development.

My platform preferences:

• Linux 2.6
• Apache 2.2
• PHP 5
• Mysql 5

My development preferences:

• GNU license
• In development 2+ years
• The most downloads from Sourceforge.
• The site with the highest traffic on Alexa.

While I have yet to document my results, which I plan to share later on this blog, the winner appears to be Joomla!. The only drawback to this point is that it does appear to require patience in implementation, something I lack! I spent a couple hours with it recently, and while I was impressed with it’s capability, I realized it would take signifcant experience to make it jump through the hoops I have in mind.

All of these things require a dynamic dependent drop down list. I found several resources for completing this task, and after several hours of work, I got it to work using what I believe is the simplest method. You may be far more skilled than I am, and this may be a breeze for you, but I have very little knowledge of JavaScript, so I relied on PHP as much as possible.
Many folks use DreamWeaver to create these menus – I am challenge-oriented, so all of my techniques refer to hand-coded methods.

The first and most highly regarded source for creating dependent dynamic drop downs is the Matt Kruse method, Matt has written an extensive JavaScript library that simplifies the entire dynamic dropdown task.. and it does, but because of my unfamiliarity with JavaScript, I had trouble adding the database through PHP.
I was initially stoked about an AJAX method, and I found one at webmonkey, but I am a novice to AJAX, and I couldn’t make it happen.
I also tried codefixer, but after some struggling, I decided it wasn’t the method for me.

All of this to say, I did eventually find the magic, and it was relatively easy to use (if you add a trick). The source is at wrox, and the trick I used to make it work was to create a simulated database using their structure, and slowly migrate it over to my setup. It worked really well, used a minimum of code, and does the job perfectly!

Here is my cleaned up and working version of the script:http://www.huanix.com/files/dependent_select/dependent_select.php

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Likes:
- The widget panel is nice – I like watching our photos, and the CPU/Memory widget.
- The Windows Experience Rating is a nice tool – As a non-gamer, I was not aware that my NVidia 6200 was such a bottleneck.
- The GUI is intuitive. This may be a result of my being a OS enthusiast, but I generally knew how to get what I wanted without having to search for help.

Dislikes:
- Constantly having to tell Windows what could or couldn’t run. Security should be a system-level function, not a user process.
- The NVidia drivers were difficult to install in Vista. The UI does a lot of hand-holding (which can be good), but the installer didn’t work with the driver files, so they had to be manually inserted (with “have disk”). Vista didn’t like my tinkering with the drivers either- if I removed my device driver, Vista would replace it with its own version. Good for a novice, irritating for a geek.
- The Office 2007 Beta Powerpoint is attractive, and I like the menus, but the type-rate reminds me of a 486. I’m not sure what’s going on with the internals, but typing in powerpoint is laggy and makes me think of typing on a remote system with a bad connection.

I just wanted to test php highlighting in geshi

Anyway – writing that gave me the idea to write a Apache2 include for tracking visitors – i LOVE the $_SERVER['HTTP_REFERER'] element, and I will have fun just toying with it. Here’s a short explanation how I did it:

First, set up a database and table, then add a user on MySql:

# mysql -u root
# create database login;
# create user login identified by ‘password’;
# grant insert on login.* to login;

This user will only be able to add data to the database, and because he hasn’t been granted “select” privileges, he won’t [easily] be able to see what he inserted.

Now set up the table using MySQL. You can do this from the root account if you choose:

CREATE TABLE `login` (
`count` int(11) NOT NULL auto_increment,
`username` varchar(64) default NULL,
`password` varchar(64) default NULL,
`IP` varchar(20) default NULL,
`refer` varchar(256) default NULL,
PRIMARY KEY (`count`));

The fields are “count” it’s just a simple primary key, “username” will take the value the user passes , “password” takes the password they passed – if this were a real password form that would be an encrypted value – but this is just a toy to see what values people will attempt to pass to a login that they don’t own. “IP” will take the $_SERVER['REMOTE_ADDR'] element, and “refer” takes the $_SERVER['HTTP_REFERER'] element.
Finally, you’ll write a form and a simple PHP page to take some variables and insert them into the database – here’s what I used:

##Add your css here if you want
title> /title> \ form method=”post” action=”?php echo $_SERVER['PHP_SELF']; ?>”> label for=”username”>Username
input type=”text” id=”username” name=”username” />
label for=”password”>Password
input type=”password” id=”password” name=”password” />
input type=”submit” value=”log in” name=”submit” />
$username = $_POST['username'];
$password = $_POST['password'];
$IP = $_SERVER['REMOTE_ADDR'];
$refer = $_SERVER['HTTP_REFERER'];

if($db = @mysqli_connect(‘localhost’, ‘USERNAME’, ‘PASSWORD’)) {
mysqli_select_db($db, ‘login’);
$query= “insert into login (username, password, IP, refer) values (‘$username’, ‘$password’, ‘$IP’, ‘$refer’)”;
mysqli_query($db, $query);
mysqli_close($db);
}else{
echo “The db could not connect.”;}

if(isset($password)){
echo ‘Your credentials failed.’;
};
?

That is really just gross. No kidding. It’s awful – I just started using wordpress and I have discovered that I’ll have to work on an effective way to share code, or at least learn how WordPress handles it. I do apolgize for the ugliness – hopefully it conveys the big picture!
I have a confession. I suck at HTML formatting. I think it’s a failure to learn rather than a failure of creativity. At very point i am struggling with the layout of two tables on www.sl7pm.com that don’t even need to exist. I think I’m going to cruise over to amazon and pick up a good book on web2.0 formatting. My logical brain tells me that means using more CSS and XML, but my creative brain tells me it means making things look attractive.. and I know from my own experience that ugly sites aren’t sticky!

I am still using the 1999 “tables” style of formatting.. which i think is awesome for displaying database results, but needs to go out the door for attractive and functional web design.
The title? I spent a good 5 minutes mis-spelling referer before i realized what a goober i was. I thought i’d add that as a beacon to those who are still mispelling it!

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