کد :
Download Nessus from link
http://www.tenable.com/products/nessus/select-your-operating-system
Redhat & Fedora Des :
# wget http://downloads.nessus.org/nessus3dl.php?file=Nessus-5.0.1-fc16.i686.rpm
# rpm -ivh Nessus-5.0.1-fc16.i686.rpm
Debian & Ubuntu Des :
# wget http://downloads.nessus.org/nessus3dl.php?file=Nessus-5.0.1-debian6_i386.deb
# dpkg --install Nessus-5.0.1-debian6_i386.deb
After installation its time to add the user on the same terminal type
# /opt/nessus/sbin/nessus-adduser
Than enter your login name and password for root user.
Now click here to go on nessus website and register your product for home feed means free of cost ( http://www.nessus.org/register ).
After registration open your email and copy the activation code and type in terminal.
# /opt/nessus/bin/nessus-fetch --register "your code"
Without commas
Its time to start nessus on terminal type
# /etc/init.d/nessusd start
Now open your browser and open
https://127.0.0.1:8834/
You will get your nessus enter your login name and password that you enter while installation.