Blogger Notes

Fiber Optic ataupun dalam bmnye dikenali dgn nama gentian optikdigunakan sebagai perantaraan (medium) bagi telekomunikasi dan jaringan komputer kerana ianya sangat mudah lentur dan boleh diikat sebagai kabel. Walaupun gentian boleh diperbuat daripada plastik lutsinar atau kaca, gentian yang digunakan dalam telekomunikasi jarak jauh hampir selalunya menggunakan kaca, kerana penyerapan optik yang lebih rendah

1. Objectives Security Teory
2. 3 Step Chipping
3. Ip Addressing
4. Subnetting
5. Network Cabling
6. Cisco Router
7. Fiber Optic
8. Linux Router
9. Sniffer
10. SQL Injection
11. Mod Security
12. XSS Remote
13. SQL Injection
14. Remote File Inclusion
15. Window Firewall
16. Web Server
17. Samba
18. Linux Firewall

www.download-crack-serial.com

SIMPLE VIRUS

Tools – Macro – Visual Basic Editor - This DocumentTulis :

Sub FileSaveAs() ----------------check at Tools – Macro – Macro – choose word commandMsgBox “Padan Muka”
End Sub

To Protect :Tools – Macro – Security – choose very high

lum upload lagi....nnt yer

** Notes nyer x siap lagi....nnt sy masukkan yer....

* 2 os yang berbeza (linux & windows)

* untuk security(kalo folder ada dalam linux)

1. rpm -q samba
*nak check ada samba @x
*install samba (cd,internet,server)

2. yum -y install samba
*download & install trus dari internet
*/sbin/ifconfic -> nak check ip pc
*wget http://10.1.0.11/fedora/pacakges/samba -3.0.26a-6.fc8.1386.rpm

3.edit samba configuration
*security=user
*workgroup=_____

4.create share folder [xyz]
*path=/xyz ->folder mana
*writeable=yes ->bole save/write
*browse dble=yes ->org bole browse

5.create folder to share
*ex:/xyz
* #mkdir /xyz
* #chmod 777/xyz

6.create Linux user account & samba account
* add user insep
* password insep
* smb password -a insep

linux command

go through this website -> http://www.ss64.com/bash/

SSH
*more on remote control computer
*bole control server dr jarak jauh

FTP
*file transfer protocol
*tranfer file
*bole ftp ke pc org lain/hos/server

Web
*jadikan web sebagai server dari jarak jauh
*kena install apachee

---->> dalam linux kena "up"kan dulu dengan menggunakan command

/sbin/service sshd start - ssh
/sbin/service ftpd start - ftp
/sbin/service httpd start - web

---->> check status
*run
*stop

• linux save budjet sebab most of the application in linux are free
• not less 2% virus only will effect linux
• open source code
• acting as server and can acting as client
• linux is stabil than microsoft
• linux is sesuai as a server

1. What u need to have?
- at least 2 network card
- 2 cross cable
- install fedora 8 (for configuration)

2. What u need to do?
- set IP forwarding
- set IP
- routing (buat routing + gw)

* Linux router guna command line untuk configuration

1. nak upkan network card
service network restart
/etc/init.d/network restart
eth0 .................................[/]
eth1 ................................ [/]

2. set ip
/sbin/ifconfig eth0 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255

3. set gateway
/sbin/route add-net 192.168.1.0 netmask 255.255.255.0 gw 192.168.1.255 dev eth0

4. set ip_forwarding
echo 1 > proc/sys/net/ipv4/ip_forward
(0 untuk stop) dan (1 untuk up)

5. tengok routing table
/sbin/ip route show

6. tengok ada routing @ x
/sbin/route -v

7. delete routing dalam routing table
/sbin/route del -net ............./sm

8. up network card one by one
/sbin/if up eth0
/sbin/if up eth1

** if pc <-> x bole nak ping:
- firewall pc x off
- anti virus x off
- ip_forwarding tiap kali x up
- firewall linux->ip table

6.

4.What is proxy server proxy server bole jugak dikatakan sebagai orang tengah

5.What is application that can allow you to access any website
These site will allow you to access any block website. There are:

http://www.proxyblind.org/
http://www.kortaz.com/
http://www.a-bypass.com/
http://www.yourprox.com/
http://www.myspaceproxy1.com/
http://www.topproxy.com/
http://www.vtunnel.com/
http://www.offsurf.com/
http://www.antibloxx.com/
http://www.43proxies.com/

http://www.s67.net

http://www.cg7.info

proxy sometimes can be:

• firewall


• filtering


• gateway

  

  Apabila terima respon, proxy akan copy content yang diminta oleh client pada dirinya sendiri dan satu keadaan lagi ianya akan hantar content tersebut kepada clientnya.
  

Ianya merupakan satu teknik yang digunakan untuk menceroboh website internet daripada
remote computer.

Sql injection
*Salau sql injection, ianya akan berlaku pada menu login untuk kita dapatkan username dan password

Remote SQL Injection
Ianya berlaku pada bahagian url @ address di mana kita akan "paste"kan injection pada text area url utk dapatkan username dan password
dimana:
username = plaintext
passwoord = hash (r7hy89p10) ::> yg x bole difahami
utk dptkan pswrd kita kena dapatkan md5 coder @ base64 coder

Ia merupakan satu teknik yang digunakan oleh attacker untuk hantar sebarang script pada web user. XSS biasanya berlaku pada aplikasi web. Script yang biasa digunakan oleh XSS ialah java script @ vb script. Biasanya XSS ini digunakan untuk mencuri cookies pada mana-mana website.

Ways how to protect from sql injection

1. Kita gunakan if...else statement pada bahagian login
2. Escape from all single quote ('')

example:

Username : 1'or'1'='1
Password : 1'or'1'='1

$SqL="Select namapenyelia, tahap_penyelia, id_penyelia
from penyelia where username='$name' and password='$pass'

if($name="1'or'1'='1"){break;} ->mana-mana username yang ada "quote" kita reject

Tujuan if...else statement adalah untuk :

1.Check $name (variable) contain.
2.Reject kalau ada single quote.

Another way to protect your website:

1. Encrypt HTML files and hide source code
2. Disable content filters
3. Block website rippers
4. Customize HTML and add some effects

more info ->http://www.aerotags.com/products/tlp.php

SQL injection is a type of security exploit in which the attacker adds Structured Query Language (SQL) code to a Web form input box to gain access to resources or make changes to data. An SQL query is a request for some action to be performed on a database. Typically, on a Web form for user authentication, when a user enters their name and password into the text boxes provided for them, those values are inserted into a SELECT query. If the values entered are found as expected, the user is allowed access; if they aren't found, access is denied. However, most Web forms have no mechanisms in place to block input other than names and passwords. Unless such precautions are taken, an attacker can use the input boxes to send their own request to the database, which could allow them to download the entire database or interact with it in other illicit ways.

By using this magic quote...we easily can hack many website that are having low security

cuti 4 ari...nak balik kampung...bestnyer...nnt next week aku edit dis page k...

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