Charles Kozlers Personal Website

 
function countPatterns
{
	string_in="$1"
	delim="$2"
	if [ $delim == "/" ] || [ $delim == "|" ]; then 
		delim="\\$delim";
	fi
	retval=`echo $string_in | perl -ne 'while(/'${delim}'/g){++$count}; print "$count\n"'`
	return $retval
}

countPatterns "this|is|a|string|" "|"
instances="$?"
 
#would output 4
echo $instances

#!/bin/bash
 
script_name=`basename $0`
echo ""
 
if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
	echo "Usage is: "
	echo ""
	echo "	$script_name [device] [ip_addr] [gateway] [Optional: one_dns_server]"
	echo ""
	echo "Note: Only one DNS server can be set.  Manually update resolv.conf if you want more"
	echo "Note: If no DNS is specified, the script will ask you if you want it to set you one."
	echo ""
	echo ""
	echo "Example: "
	echo ""
	echo "	$script_name eth0 192.168.1.135 192.168.1.1 4.2.2.2"
	echo ""
	exit 0
fi
 
device="$1"
ip="$2"
gw="$3"
primary_dns="$4"
 
user=`echo $USER`
ans='y'
if [ $user != "root" ]; then
	echo "You must be root to run this"
	exit 108
fi
 
if [ -z $device ]; then
	echo "You must specify a device to modify"
	exit 5
fi
if [ -z $ip ]; then
	echo "You must specify an IP address for your machine"
	exit 5
fi
if [ -z $gw ]; then
	echo "You must specify a default gateway address"
	exit 5
fi
if [ -z $primary_dns ]; then
	echo "* No DNS server set."
	echo "* You do not need to specify a DNS server but it is suggested"
	echo "* Would you like the script to write default DNS for you (using OpenDNS)? [y/n] (default: y)"
	read ans
	echo "Write DNS = " $ans
fi
 
 
 
# Do the networking configuration
#
ifconfig eth0 $ip
if [ $? -eq 0 ]; then
	success=1
fi
 
route add default gw $gw
ret="$?"
if [ $ret -eq 0 ] || [ $ret -eq 7 ]; then
	success=2
fi
 
if [ ! -z $primary_dns ]; then
	su -c "echo nameserver $primary_dns > /etc/resolv.conf"
else
	if [ $ans == 'y' ] || [ $ans == 'Y' ]; then
		su -c "echo nameserver 208.67.222.222 > /etc/resolv.conf"
		su -c "echo nameserver 208.67.222.220 >> /etc/resolv.conf"
	fi
fi
 
device_ip=`ifconfig eth0 | grep -i $ip | cut -d ':' -f2 | cut -d ' ' -f1`
route_gw=`route -n | grep -i 192.168.155.1 | awk '{ print $2 }'`
route_flag=`route -n | grep -i 192.168.155.1 | awk '{ print $4 }'`
 
if [ $success -eq 2 ]; then
	echo ""
	echo "* Success!"
	echo ""
	echo "* IP: 		$device_ip"
	echo "* Gateway: 	$route_gw ( $route_flag )"
	echo ""
fi
exit

make menuconfig

# make -j2
# cp /usr/src/linux/arch/x86/boot/bzImage /boot/kernel
# reboot

<?php
//Get remote host
$_get_addr = $_SERVER['REMOTE_ADDR'];
 
//Get the host from the address
$_get_host = gethostbyaddr( $_get_addr );
 
//Ban list array.  The text before => is a key name and
//after the => is the host you want to ban.  This allows
//for aliasing your problematic hostnames
$_config_hostbanlist = array( 
				russia1 => "nn-88-237.nm-s.ru"
			);
 
/*
Ban by full hostname.  The list is populated by the hostbanlist
array.  Simply it just compares their host with an entry in the 
hostbanlist array
*/
function isHostBanned( $host, $_ban_list )
{
	//Iterate each entry in the banned list array
	foreach( $_ban_list as $entry )
	{
		//If we get a match, return true (the host is banned)
		if( strtolower( $host ) == strtolower( $entry ) )
			return true;
	}
	return false;
}
 
/*
This will ban by IP.  This list is populated dynamically by the
hostbanlist variable.  It then resolves IP's for each hostname
in the list and then checks it.
*/
function isIPBanned( $_remote_addr, $_ban_list )
{
	foreach( $_ban_list as $entry )
	{
		$entry_ip = gethostbyname( strtolower( $entry ) );
		if( $_remote_addr == $entry_ip )
			return true;
	}
	return false;
}
function doAlert( $alert )
{
	echo "<script language='JavaScript'>window.alert( \"$alert\" )</script>";
}
 
/*
We will be checking for true/false of isIPBanned first since the IP banned list is populated by
the $_config_hostbanlist array and isIPBanned resolves the hostname to an IP.  Then, if that fails, it
also then checks the hostname and compares to the list again via hostname.
 
Flow:
 
isIPBanned? -> loop hostbanlist -> resolve IP for given loop iteration -> check IP resolved to REMOTE_ADDR
		-> Match? => Banned
		-> No Match? => Not in that list, assume they are either not in the list or 
				their IP could not be resolved.  Go to isHostBanned function
				to ensure they are not in the list
 
isHostBanned -> loop hostbanlist -> check if their host is equal to an entry in the array
		-> Match? => Banned
		-> No match? => Not banned
*/
 
if( isIPBanned( $_get_addr, $_config_hostbanlist ) || isHostBanned( $_get_host, $_config_hostbanlist ) )
{	
	doAlert( "You are banned" );
	echo "<br><br><br><p align='center'>Your host [$_get_host] and/or IP [$_get_addr] has been banned.  <br>
		Please contact <a href='mailto:webmaster@ckozler.net'>webmaster@ckozler.net</a> 
		if you feel you have reached this page in error</p>" . "<br>";
	exit;
}
?>

require('hostblock.php');

#!/bin/bash
 
 
user=`whoami`
if [ $user != "root" ];
then
	echo "You must be root to run this"
	exit 0
fi
 
 
basename=`basename $0`
location=`dirname "$0"`
ans='n'
if [ $location != "/usr/local/bin" ];
then
	echo ""
	echo "If this were in /usr/local/bin then it would be easier to use (or set PATH variables)"
	echo ""
	echo "Would you like to copy it there? [Y/n]"
	read ans
fi
 
 
function usage
{
	echo " "
	echo "Usage is: "
	echo " "
	echo " makedns <domain> <domain_to_search> <ip_of_dns_1>"
	echo " "
	echo " "
	echo "Example:"
	echo " "
	echo " makedns test.local test.local 192.168.1.101"
	echo " "
}
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ] ;
then
	usage
 
	if [ -z "$1" ];then 
		echo "You left field 1 blank.  Please fill in a DNS domain name" 
	elif [ -z "$2" ]; then
		echo "You left field 2 blank.  Please fill in a DNS search to search"
	elif [ -z "$3" ]; then
		echo "You left field 3 blank.  Please fill in a primary DNS IP"
	fi
	echo " "
	exit 0
fi
 
 
 
 
 
#
# TODO: Possibly do this in a loop and store them in an array?
#
 
lines=`wc -l /etc/resolv.conf | cut -d " " -f1`
dnsdomain=`sed -n "1 p" /etc/resolv.conf | cut -d " " -f2`
dnssearch=`sed -n "2 p" /etc/resolv.conf | cut -d " " -f2`
dnsip1=`sed -n "3 p" /etc/resolv.conf | cut -d " " -f2`
dnsip2=`sed -n "4 p" /etc/resolv.conf | cut -d " " -f2`
 
_in_dnsdomain="$1"
_in_dnssearch="$2"
_in_dnsip1="$3"
_in_dnsip2="$4"
 
#
#
#
 
 
#echo text_to_pipe | sed s/<old>/<new>
complete=0
if [ $lines -gt 0 ]; 
then
	echo "domain $_in_dnsdomain" > /etc/resolv.conf
	if [ $? -eq 0 ]; then
		complete=1
	fi
	echo "search $_in_dnssearch" >> /etc/resolv.conf
	if [ $? -eq 0 ]; then
		complete=2
	fi
	echo "nameserver $_in_dnsip1" >> /etc/resolv.conf
	if [ $? -eq 0 ]; then
		complete=3
	fi
 
	if [ $_in_dnsip2 != "" ];
	then
		echo "nameserver $_in_dnsip2" >> /etc/resolv.conf
	fi
 
	if [ $complete -ge 3 ];
	then
		echo "DNS update/reconfiguration complete and successful."
		echo " "
		echo "New Configuration: "
		echo " "
 
		cat /etc/resolv.conf		
 
		echo " "
		echo "Exiting."
	fi
fi
 
 
#If they want to move it or not to /usr/local/bin
if [ $ans == "y" ] || [ $ans == "Y" ]; then
	echo "Moving..."
	cp $basename /usr/local/bin/
	chmod 755 /usr/local/bin/$basename
fi

#!/bin/bash
 
user=`whoami`
if [ $user != "root" ]; then
	echo "You must be root to run this."
	exit 0
fi
 
apache=`ps -A | grep -ic apache2`
mysql=`ps -A | grep -ic mysql`
 
aprunning=0
 
#Check apache2 first
if [ $apache -gt 0 ]; then
	echo "*** WARNING *** Apache is already running.  Will not start Apache."
	echo "*** NOTIFICATION *** Trying MySQL...."
 
	#apache2 is running, attempt mysql anyway
	if [ $mysql -gt 0 ]; then
		echo "*** WARNING *** MySQL is already running.  Will not start MySQL."
		echo "*** EXITING ***"
		exit 0
	else
		echo "*** NOTIFICATION *** Apache is running but MySQL is not. Starting MySQL..."
	fi
 
	aprunning=1
fi
 
 
if [ $aprunning -ne 1 ]; then
	apache2ctl start
	if [ $? -eq 0 ]; then
		echo " * Apache2 started successfully"
	elif [ $? -ne 0 ]; then
		echo " * ERROR: Apache2 could not start. Please check logs."
	fi
fi
 
/etc/init.d/mysql start
if [ $? -gt 0 ]; then
	echo "ERROR: MySQL could not start. Please check logs."
	exit 0
fi
exit 0

#!/bin/bash
 
user=`whoami`
if [ $user != "root" ]; then
	echo "You must be root to run this."
	exit 0
fi
 
#stop apache
apache2ctl graceful-stop
if [ $? -gt 0 ]; then
	echo "Graceful stop seemed to fail."
	echo "Trying normal stop."
	apache2ctl stop
	if [ $? -ne 0 ]; then
		echo "Normal stop didnt work."
		echo "Force killing."
 
               #CHANGE HERE IF YOUR SERVER DOES NOT SUPPORT 'killall' COMMAND
		killall apache2
		if [ $? -eq 0 ]; then
			echo " * Apache2 force killed "
		else
			echo " * ERROR: Apache2 not stopped or killed"
		fi
	else
		echo " * Apache2 stopped (not gracefully though)"
	fi
else
	echo " * Apache2 gracefully stopped"
fi
 
#stop mysql
/etc/init.d/mysql stop
if [ $? -ne 0 ]; then
	echo "Stop didnt seem to work..."
	echo "Killing MySQL"
	killall mysql
fi
 
exit

<?php
 
$con = mysql_connect( "localhost", "root", "<password>" ) or die( "can not connect" );
if( $con ) echo "Connected<br>";
 
$result = mysql_query( "SHOW FULL PROCESSLIST", $con );
while( $row = mysql_fetch_array( $result, $con ) )
{
 
	$process_id = $row["id"];
	if( $row["Info"] == "NULL" )
	{
		$sql = "KILL $process_id";
		$res = mysql_query( "$sql", $con );
		if( $res )
		{
			echo "Mysql Process ID $process_id has been killed<br>";
		}
	}
	else echo "Row not found?<br>";
}
?>