Thanks all. Actually I even don't know how to check where there was/is attach or not.
I am looking for a firewall is mainly to have some sense of guarantee, otherwise I will definitely freak out in front of attack. I will start learning something about iptables. Just know so little ^_^ Thanks again, Best regards, -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cag9cjmmgdtnk9blp5p6dv4qerr5dabvcgmmqwzp-nz31-sq...@mail.gmail.com