sorry i was consider posting avast, avg antivirus, firewall setting and check your ports with help of nmap .....also .....apparmor .....etc in same tutorial that why i give it name so linux users get attracted and get it all in one tutorial.
anyways i post them in other tutorials one by one please wait till then
step 1. please go to
step 2. click and download .........avast! Linux Edition (DEB package)
note:- please register your avast as well if you use for home use its free
you get a registration form on same page fill it you get a free license key
step 3. after download rightclick on avast4workstation_1.3.0-2_i386.deb (package) or double click just like windows and install
while installing it will ask for password just type your user password (ie login password)
step 4. click on menu click on terminal and type
step 5. sudo avastgui
step 6. password of user (ie login screen password)
step 7. you get gui mode from there enter new license.