V.Fotiadis wrote: > Το γεγονός ότι στο λίνουξ οι ιοι είναι σπάνιοι , κυρίως οφείλεται στην > αρχιτεκτονική του. Ένας ιός ή trojan λειτουργεί με αυτόματο τρόπο, > δηλαδή κάθεται στο σκληρό δίσκο σε κάποιο φάκελο του συστήματος, > εκτελείται και αναπαράγει τον εαυτό του. Γιατί σημβαίνει αυτό; Συμβαίνει [...] > νομίζω ότι κάνεις λάθος - παραθέτω απο παλαιότερο σχετικό post που είχα κάνει στο groklaw:
Common misconceptions about Linux and viruses --------------------------------------------------------- >>> Viruses and Worms in a Linux Desktop!? Don't Ya know that the linux kernel is a rock dude?! Your system's security is as strong as it's weakest point. Linux the kernel is trully very robust but Linux the X distribution is not just the kernel. If half the users with a PC were using application Y daily and that application had a design weakness then you have a door wide open for a virus. If the application is directly connected to the Internet then you can say hello to worms also. >>> linux is immune because in most cases users work under regular non-system accounts. The root account is heavily guarded. This way a virus/worm will only have user-level-access to the system which is not enough to do serious damage and to propagate People that think like that have high experience in the server area where the root account is indeed very important. This is not true in the desktop however. If a virus/worm can read, write and delete all your personal data, can upload to all ftp, samba, webdav, <whatever> shares, places and repositories you have write access to and can sent emails and IMs using your accounts then it is very *very* dangerous. (never mind that if you have access to the account of a desktop user of a workstation it is usually very easy to obtain root access also - easier than it is to obtain root access if you have access to an account used by a daemon of a server system) >>> a virus/warm must be executed in order to do any harm. Unlike the windows world in linux a regular-user can't give execute permitions to a file so it is very hard for the virus/warm to execute it's code. Almost every desktop Linux system has sh, perl, python and probably a dozen more interpreters which will gladly execute any powerful script (read virus/worm) you will pass them as a parameter. -- Ubuntu-gr mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-gr
