The MRTG 2.17.1 Windows Installation Guide

SYNOPSIS

Installing MRTG on a Windows box is not quite as "click and point" as some might want it to be. But then again, it is not all that difficult if you follow the instructions below.

PREREQUISITES

To get MRTG to work on Windows you need the following:
  • A current copy of Perl. For Example ActivePerl 5.8.8 from ActiveState http://www.activestate.com/store/activeperl/download/
  • The latest version of MRTG from http://oss.oetiker.ch/mrtg/pub. Look for mrtg-2.17.1.zip or better. The archive also contains a precompiled copy of rateup.exe for Win32.

통신망 및 네트워크 보안(Telecommunications & Network Securit)


통신망 및 네트워크 보안(Telecommunications & Network Security)

Dns cache poisoning - dns 캐시에 저장된 IP address를 다른 IP로 바꾸게 하는 공격
Social engineering(masquerade:위장) - 내부사용자 인것처럼 위장하여 주요정보를 빼내는 공경방법
Phone phreaking/   honey pot/   shoulder surflng
salami attack - 일부해커가 시티뱅크의 여러계좌에서 1센트씩 빼낸후, $200,000달러가 되었을때 도주, 이런종류의 공격방법. 작은 정보들을 모아 아주 중요한 정보를 얻어 내는 것도 salami 공격이라 부름.
data diddling - (false data) - 예를 들어 편의점에서 700짜리 아이스크림인경우 종업원은 시스템에 1000원을 입력하고 잔돈 300원을 꿀꺽하는 방법
call forwarding - RAS서버에 callback기능을 설정하였을 경우 , 서버가 다시 클라이언트에게 전화를 하게되는데 이때 클라이언트전화기에 call forwarding을 설정하면 보안에 취약할수 있음.
War dilaling - 내부망의 pc에 부착되 모뎀을 찾는 방법 / 모뎀을 찾는 이유는 방화벽 및 보안장비를 우회하기 위한 목적 / 해결 - pc나 laptop에 모뎀을 허용하지 않도록 보안정책
War driving (=War chalking:분필) - AP를 차를 타고 다니면서 찾아내어 내부에 침투하는 방법/ netstumbler
RF jamming  - 유선상의 dos 개념과 비슷/ wireless Lan에서 사용하는 Dos 공격 / Wireless는 Radio Frequency(RF)를 보내어서 정상적인 클라이언트 요청을 하였을때 서비스를 못하게 하는 방법
Dumpster diving - 쓰레기통같은 곳을 뒤져서 정보를 얻는 방법
Cross-site scripting - 스크립트를 이용하여 클라이언트의 중요정보, 즉 쿠기를 빼낼수 있게 하는 공격방법

APM Setup on CentOS 5.5

Setting steps are MySQL, Apache, PHP, and then PHPMyAdmin here.


1. MySQL


Install MySQL
# yum -y install mysql mysql-server

Activate the service
# chkconfig --levels 235 mysqld on


Install Mac OS X 10.6 on VMWare 7

It's very simple! Follow me! ^^

1. Preparation
- Space more than 30G
- VMWare 7
and...

Language and Character Set on Linux

Check your system's language and character set.

#cat /etc/environment

You will be able to see current PATH, LANGUAGE and LANG here.


:)

Set Ati mobility radeon 9200 x.org on Ubuntu

Ati mobility radeon 9200 is NOT needed to download a driver and install it. It says "The ati driver is already shipped with Ubuntu, so you won't have to download it." but, recent driver fglrx needs from the website for recent products.

 If you installed a fglrx for an old graphic card, it must be deleted.
$ sudo apt-get remove --purge xorg-driver-fglrx

Set up Tomcat & Apache on Ubuntu

1. Download & install tomcat
#wget http://ftp.kaist.ac.kr/Apache/tomcat/tomcat-6/v6.0.20/bin/apache-tomcat-6.0.20.tar.gz
#sudo cp apache-tomcat-6.0.20.tar.gz /usr/local
#cd /usr/local
#sudo tar xvf
apache-tomcat-6.0.20.tar.gz
#sudo mv apache-tomcat-6.0.20 tomcat

Set up Java on Ubuntu

Java can be downloaded from http://java.sun.com then move this file to /usr/local/


1. Installation


Advanced Spinning Lesson Part 1

event.keyCode on FireFox

The event object is needed as an argument to process on Firefox.


ex1)
// Firefox
function keyCode(e)
{
    alert(e.which);
}

Mac OS X on Compaq nx7010


Mac OS X Leopard 10.5.2 Kalyway

Don't be afraid.
All you need is just doing it as it shows below.

Samba on ubuntu

1. Create samba id
   : Create new ID and Password for samba
     (It should be the same with the Linux account.)

$ sudo smbpasswd -a userid

SSH on ubuntu

$ sudo apt-get install ssh

## Port Changing
$ sudo vi /etc/ssh/sshd_config

# port 22  <= Delete '#' and set a port number you want to use
$ sudo /etc/init.d/ssh restart

FTP Server on ubuntu

Set up FTP (vsftpd)


$ sudo apt-get install vsftpd
$ sudo vi /etc/vsftpd.conf

anonymous_enable=NO // Default YES
local_enable=YES // Delete Comment Mark
write_enable=YES //
Delete Comment Mark
local_umask=022
$ sudo /etc/init.d/vsftpd restart

Apache Server on ubuntu

It is possible to apply using

/etc/init.d/apache2 restart command,
after modifying this file.

/etc/apache2/sites-available/default


To check whether or not it applied, open this file.
/etc/apache2/sites-enable/default


svn(subversion) on ubuntu


Install SVN Server
Set up SVN Server
sudo apt-get install subversion libapache2-svn
or
sudo apt-get install svnserver
sudo apt-get install libapache2-svn
 

Create SVN Folder
sudo svnadmin create /home/svn
sudo chown www-data:www-data /home/svn -R