backtrack5安装完毕后，使用putty远程登录时显示network error：Connection refused
解决方法：

登录系统（系统默认用户名密码是root/toor，startx可以进入图形界面）

在命令终端输入命令，

#sshd-generate （系统可能会询问是否覆盖，全部选Y）。

或者

#ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key

密码置空

#ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

密码置空

然后

:~# /etc/init.d/ssh restart

问题解决。

Joomscan is one of penetration testing tool that help to find the vulnerability in Joomla CMS.   TheUpdated version can detects 550 Vulnerabilities. Let me show how to use this joomscan in Backtrack5.

Download the Joomscan from here:

 http://web-center.si/joomscan/joomscan.tar.gz

Step 1: Moving to PenTest folder

Copy/Move the downloaded files in directory

/pentest/web/scanners/joomscan/

Step2: Set Permission

Now you have to set permission for the Joomscan file. In order to this, Type the following command in Terminal(if you don't know how to open terminal at all, please stop reading this and start it from basics of Linux).

CHMOD 0777 joomscan.pl

Step 3: Update

Update the scanner to latest version. To do this, enter the following command in Terminal:

./joomscan.pl update

Step 4: Scanning for Vulnerability

Now everything ok, we have to scan our joomla site for vulnerability. To do this, enter the following command in Terminal:

./joomscan.pl -u www.YourJoomlasite.com

Wait for a while, and it will list of the vulnerability found.

This tutorial is completely for Educational purpose only. This tutorial is for PenTester and Ethical Hackers .