Notes » security http://alexpb.com/notes Tue, 27 Dec 2011 13:04:59 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Privacy #1 http://alexpb.com/notes/articles/2010/08/31/privacy-1/ http://alexpb.com/notes/articles/2010/08/31/privacy-1/#comments Tue, 31 Aug 2010 23:19:24 +0000 Alex http://alexpb.com/notes/?p=853
  • Full-Body Scan Technology Deployed In Street-Roving Vans
  • The Government’s New Right to Track Your Every Move With GPS without a warrant by installing a tracking device on your car while it’s in your driveway.
    • ]]>     http://alexpb.com/notes/articles/2010/08/31/privacy-1/feed/ 0     Block Spiders/Bots who just don’t want to conform to your robots.txt http://alexpb.com/notes/articles/2007/06/12/block-spidersbots-who-just-dont-want-to-listen-to-robotstxt/ http://alexpb.com/notes/articles/2007/06/12/block-spidersbots-who-just-dont-want-to-listen-to-robotstxt/#comments Wed, 13 Jun 2007 01:19:34 +0000 Alex http://alexpb.com/notes/articles/2007/06/12/block-spidersbots-who-just-dont-want-to-listen-to-robotstxt/ Add these to your .htaccess file:
    By User-Agent:

    RewriteCond %{HTTP_USER_AGENT} Twiceler
    RewriteRule .* - [F,L]

    PS: Replace Twiceler with the bots name found in the user-agent. Another good one to block is Java, they have been hammering my website lately.

    By IP Address or Host Name:

    order allow,deny
    deny from xxx.xxx.xxx.xxx
    deny from xxx.xxx.xxx
    deny from isp_name.com
    allow from all

    See also http://www.closetnoc.org/help/security.html for a user-agents list.

    ]]>     http://alexpb.com/notes/articles/2007/06/12/block-spidersbots-who-just-dont-want-to-listen-to-robotstxt/feed/ 0     Home Camera Security System http://alexpb.com/notes/articles/2007/03/22/home-camera-security-system/ http://alexpb.com/notes/articles/2007/03/22/home-camera-security-system/#comments Thu, 22 Mar 2007 23:14:42 +0000 Alex http://alexpb.com/notes3/archives/10 Resources for setting up a motion-detection camera security system controlled from your PC using an analog camera.

    1. Tutorials

    2. Software

      • Dorgem (Free)Supports an unlimited number of simultaneous cameras. It has a built-in webserver for still images and can be used as security camera because of its motion detection. (Windows)
      • Motion (Free)Software motion detector for Linux. Guide or Download
      • ZoneMinder (Free)Set of applications which together provides a complete surveillance solution allowing capture, analysis, recording and monitoring of any cctv cameras attached to a Linux based machine. Documentation
        or Download
      • Gspy (Free)Special motion detection algorithms are used to reduce the size of the daily movies by eliminating pictures with similar content as well as the mpeg compression. (Linux)
      • VideoLAN (Free)Video streaming server with extended features (Multi-Platform)
      • DSLR Remote ProAllows remote operation of a Canon EOS 5D, 1D Mark II, 1Ds Mark II, 1D, 1DS, 30D, 20D, 10D, 400D/Digital Rebel XTi/Kiss Digital X , 350D/Digital Rebel XT/Kiss Digital N or 300D/Digital Rebel/Kiss Digital digital SLR via a PC using a FireWire or USB cable.
      • Webcam Camera System

    3. Recommended Cheap Hardware

      Look for a TV Tuner card or USB capture device with composite(RCA) input if you have an analog camera. Get one which uses one of the following chipset (Should be listed in the product’s specifications):

      You should be able to find something for about $20 to $30 on the internet.

    4. My Setup

      • I have a TV Tuner card with cable, composite and s-video inputs which has an SAA7130 chip (Module SAA7134 from Kernel 2.6.X is
        required)

        • I couldn’t get it to work with Zone Minder, but it does work pretty well with Motion. I got it from eBay for $15.

      • I also bought an analog wireless camera with receiver for $30 on eBay (composite output).
      • Motion. It is not a GUI program but it is easily setup from the
        motion.conf file and has many nice features (capture video or pictures on motion detection for example).
      • I use Slackware on a P-III 1Ghz (I get about 5 frame per second while motion is detected)

    You could also use a webcam like the one listed below, which features infrared lights for improved night vision (and it is USB so don’t need any special hardware for composite input).

    ]]>     http://alexpb.com/notes/articles/2007/03/22/home-camera-security-system/feed/ 0     Spyware Tips http://alexpb.com/notes/articles/2007/01/19/spyware-tips/ http://alexpb.com/notes/articles/2007/01/19/spyware-tips/#comments Fri, 19 Jan 2007 23:05:13 +0000 Alex http://alexpb.com/notes3/archives/4 Spywares, viruses and trojans are everywhere on the Internet, you have to be very careful to avoid them.

    Prevention

    1. Keep Windows up-to-date, check for updates at least once a week using windows update, or even better set Windows Update to be launched automatically everyday
    2. Use a firewall preferably with stateful packet inspection, like the one included with Windows XP, ZoneAlarm (Free) or Kerio Winroute Firewall 6 which is a 30 shareware trial.
    3. Use 2 or 3 Spyware removal utilities such as (because none of them can catch them all):
    4. Use an antivirus and keep the virus definition database updated.
    5. Get Firefox to browse the web along with flashblock and adblock extensions to block most of the ads and popups if you wish.
    6. *Be very careful with this* Stop any Windows Services you don’t use (but don’t stop any that you aren’t 115% sure what they do, some are required for your computer to work). See : Windows XP Service Configuration
    7. Never execute a file you don’t expect to receive (ie, by E-mail)
    8. Nothing is free (generally), so don’t accept any deals, softwares or offers that feels too good to be true, they aren’t
    9. Don’t read SPAM E-mails (they can contain viruses or spywares)

    Detecting presence of badware (spyware, malware and such)

    1. Many popup windows when Windows starts or when you browse the web
    2. New search bar in Internet Explorer
    3. Can’t change your browser homepage (browser hijacking)
    4. Your computer gets very slow or gives you error messages
    5. Check running programs and verify if they are bad
      • Using Process explorer, you can see all running programs and processes.
      • Then go to Task List Programs or
        Windows Process Library and make sure all programs are
        good and supposed to be running. If you can’t find a process, use Google, you should be able to find some information about it.
      • Then right click on the bad process and Kill it (that doesn’t remove the spyware, it just stop it for now.)

    Removal Tools Links

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