using nmap to scan port

scan sql

nmap -f -sS -v -A -p3306 202.185.x-x

scan web

nmap -f -sS -v -oA dvwa -A -p 80,443 202.185.x.x-x

some tips to improve ssh server

get from http://askubuntu.com/questions/2271/how-to-harden-an-ssh-server

Here's one easy thing to do: install ufw (the "uncomplicated firewall") and use it to rate limit incoming connections.

From a command prompt, type:

$ sudo ufw limit OpenSSH 

If ufw is not installed, do this and try again:

$ sudo aptitude install ufw 

Many attackers will try to use your SSH server to brute-force passwords. This will only allow 6 connections every 30 seconds from the same IP address.

reformat AND reinstall my ubuntu

1- Change to nearest repo

2-

sudo apt-get install ubuntu-restricted-extras

3 install ubuntu tweak

internet data decoder, sniff facebook, ym email etc

packet forensic, peeping user data, internet chat, facebook bla2... using this software by tapping at main gateway.

Xplico

http://www.xplico.org

GUI Ubuntu process manager - kill task

only expert know how to kill running application/process in ubuntu using kill command. There is a gui name: qps

install:

sudo apt-get install qps


run:

sudo qps

easy way to crack wep (ubuntu)

The following is an easy way to install software crack WiFi WEP key.

go to command line:


install aircrack-ng

sudo apt-get install aircrack-ng


install macchanger

sudo apt-get install macchanger

install python

sudo apt-get install python-tk

download wifite

sudo wget -O wifite.py http://wifite.googlecode.com/svn/trunk/wifite.py


change mode to executeable

sudo chmod +x wifite.py

run:

sudo python wifite.py

need software to put a password for your pdf file?

for use in the operating system (Ubuntu), type: sudo apt-get install pdfchain