On Sun, 2011-01-02 at 15:57 -0600, tun wrote: > i have program of microsoft, i wanted to block internet with program..? > There are a number of unrelated things that 'block the internet' What exactly do you want to block? a) incoming connections to your computer? b) spam and phishing mail? c) mail containing viruses and trojans? d) rootkits? All of the above should be blocked well before they can reach any user application, so use native Linux programs and capabilities. (a) is best blocked by a firewall. The best tools for this are the NAT capability in your router if you're on broadband or wireless and/or the Linux built-in firewall. (b) and (c) can be stopped with Spamassassin and Clamav respectively, but are best used alongside the mail server thats part of every Linux distro. You'll also need some form of glue between these tools and your mail server - look at Amavis, simscan, etc, but the glue is specific to your mailserver. Greylisting is also good and so is using SPF if you own a domain name. Blocking spam and viruses is neither easy or fast, so either start learning about it or switch to an ISP with good spam and virus filters and let them take care of the problem. (d) (rootkit detection and prevention) is entirely your responsibility - practise safe computing, NEVER run anything under root thats not a native backup or system maintenance tool and use whatever Ubuntu uses in place of SELinux or Apparmor. Install chkrootkit, arrange for it to run weekly or daily as a cron job AND READ THE REPORTS it mails to root. If you want more advice, you'll have to tell us exactly what you want to protect your computer from. > i did look for in google but forum ubuntu there is resolved but it's very long steps-steps terminal teminal :( > there is easy and fast for setting? or there is config in regedit? > Windows apps are entirely the wrong things to use for securing your Linux computer. Stick to native packages: they are generally better designed and, more importantly, are built to work in the Linux environment. Martin
