When you need to find the original thread in a list of a hundred child threads, you can use “ps auxc | grep ”

[root@main www.ewea.org]# ps auxc | grep httpd
root      1989  0.0  0.2 319260 12916 ?        Ss   09:24   0:01 httpd
apache    6341  1.4  1.1 483420 69864 ?        S    13:18   3:10 httpd
apache   12844  1.5  1.1 472324 68452 ?        S    14:16   2:32 httpd
apache   12854  1.5  1.0 466824 62652 ?        S    14:16   2:26 httpd
apache   22137  1.6  1.0 465680 61540 ?        S    15:30   1:25 httpd
apache   22145  1.5  1.0 466868 61920 ?        S    15:30   1:17 httpd
apache   22501  1.5  1.0 466620 62464 ?        S    15:32   1:19 httpd
apache   22508  1.5  1.0 369720 62528 ?        S    15:32   1:18 httpd
apache   22509  1.5  1.1 480484 67440 ?        S    15:32   1:17 httpd

Here are some lesser-know tricks for CSS dropshadows.
http://css-tricks.com/snippets/css/css-box-shadow/

You can create the following styles:

Using the following code:

<style type="text/css">
#example {
background: none repeat scroll 0 0 #ccc;
box-shadow: 5px 5px 5px #666;
height: 100px;
margin: 15px 0;
width: 100px;
}
#example2 {
background: none repeat scroll 0 0 #ccc;
box-shadow: 0 0 10px #000000 inset;
height: 100px;
margin: 15px 0;
width: 100px;
}
#example3 {
background: none repeat scroll 0 0 #ccc;
box-shadow: 0 8px 6px -6px black;
height: 100px;
margin: 15px 0;
width: 100px;
}
</style>

I installed PHP on a Centos 6.5 i686 server recently and by default in installed PHP 5.5 which broke some apps.
You can easily downgrade PHP with the following command:

# yum downgrade php*

(Repeat the process again if you want to downgrade a version more)

My new service provider does not assign static IP addresses to its customers so I had find a way around this issue in order to connect to the servers quickly from home.

Because my IP address is constantly changing, and not even within a consistent set of address blocks, I decided to use my personal domain name as the access point.
See here for information on setting up Dynamic DNS.

iptables will detect and resolve the ip address for any hostnames in the configuration file only the first time the service is started, so this is not ideal for a hostname with a changing (dynamic) IP address. This is why we need to use a script that will detect any changes and force iptables to restart.

I found this script below from here and it does everything I need it to do perfectly (change the values highlighted below to suit your own needs):

#!/usr/bin/python
# Version 1.0
# 6 January 2014
# Jason Bickley - Senior Web Manager
# Dynamic DNS script to update IP address for home network

import os

def gettextoutput(cmd):
    """Return (status, output) of executing cmd in a shell."""
    pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r')
    pipe = os.popen(cmd + ' 2>&1', 'r')
    text = pipe.read()
    if text[-1:] == '\n': text = text[:-1]
    return text

home_dyndns = "home.jasonbickley.net"
log_dyndns  = "/var/log/dyndns.log"
all_dyndns  = "/var/log/dyndns-all.log"

last_dyndns = gettextoutput("cat  " + log_dyndns)
curr_dyndns = gettextoutput("host " + home_dyndns)

print "Log: "+ last_dyndns
print "Cur: "+ curr_dyndns

if last_dyndns == curr_dyndns:
    print "IPs match, no restart necessary"
else:
    print "Updating last IP with current"
    os.system("echo '" + curr_dyndns + "' > " + log_dyndns)
    os.system("echo `date '+%Y%m%d %H:%M:%S'` '" + curr_dyndns + "' >> " + all_dyndns)
    print "Restarting iptables to update it"
    os.system("/etc/init.d/iptables restart")

Here is a summary of what the script above does:

It checks the IP address in the file /var/log/dyndns.log and compares the IP address with my subdomain’s (home.jasonbickley.net).
If the IP addresses match, then it does nothing. If they differ, it overwrites the IP address file with the new value, logs more specific details in /var/log/dyndns-all.log, and restarts the iptables service. This means that iptables now has the updated value for my subdomain.

I put the script here /root/Scripts/dyndns.py, chmod 700 it, and created a cron entry to run it every 10 mins.

Here is a PHP script I made to display the contents of a workshop registered participants table.

<?php
// STATE YOUR VARIABLES
////////////////////////////////////////////////////////////////////
$user = "workshops";
$pass = "FV8sbyJuJ7bdT5Rj";
$db   = "workshops";
$sql  = "SELECT * FROM `wp_workshops_fm_data_15` LIMIT 0, 100";

// ESTABLISH THE CONNECTION
////////////////////////////////////////////////////////////////////
$cxn=mysqli_connect("localhost","$user","$pass","$db");   //Declare the mysqli connection parameters.
$cxn->set_charset("utf8");   // Define the default character set.
if (mysqli_connect_errno())  // Create a check for connection, if nothing then die.
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }
$result = mysqli_query($cxn,"$sql");

// GET NUMBER OF ATTENDEES
////////////////////////////////////////////////////////////////////
$rows = mysqli_num_rows($result);
printf("<h2>Current number of registered attendees: %d</h2>",$rows);

// CREATE THE TABLE
////////////////////////////////////////////////////////////////////
echo "<table>
        <tr>
                <th>First name</th>
                <th>Last name</th>
                <th>Job title</th>
                <th>Organisation</th>
                <th>Country</th>
                <th>Email address</th>
        </tr>\n";

while($row = mysqli_fetch_array($result))
  {
  echo "        <tr>\n";
  echo "                <td>" . "<b>" . $row['text-526647958e563'] . "</b>" . "</td>\n";
  echo "                <td>" . "<b>" . $row['text-5266498080c9d'] . "</b>" . "</td>\n";
  echo "                <td>" . $row['text-52664992cbe3f'] . "</td>\n";
  echo "                <td>" . $row['text-526649a164f02'] . "</td>\n";
  echo "                <td>" . $row['text-526649bb26849'] . "</td>\n";
  echo "                <td>" . "<a href=\"mailto:" .$row['text-526649d2a727a'] . "\">" .$row['text-526649d2a727a'] . "</a>" . "</td>\n";
  echo "        </tr>\n";
  }
echo "</table>";

// CLOSE THE CONNECTION
////////////////////////////////////////////////////////////////////
mysqli_close($cxn);

?>