Tech Blog - A "defunct" process or a zombie process is a process that is actually finished which depends on a parent process, which for some reason usually due to error did not terminate.You can usually see defunct process using the ps -ef command, this process mostly are harmless and can be left alone, however they are annoying in my opinion so I often want them removed, the catch is you can't kill an already dead process, good thing Unix has a utility that will help us removed it.prea... Read Full Story
Tech Blog - Olympus is one of the famous companies manufacturing imaging and audio products, medical, scientific and industrial solutions. Olympus WS-300M MP3 Player is the latest model introduced into the world of music.Olympus WS-300M MP3 Player is a flash based player with WMA audio formats. The interfaces that come in this model MP3 player are USB direct and 2.0 full speed. The output sound mode is in stereo format. The headphones that come with this model MP3 Player is binaural. It comes... Read Full Story
Tech Blog - Here is a very usefull command on sending files as attachement on Linux/Unix command line, this is specifically very usefull when using it in script to send daily report, or just for mailing client certificate directly from the server, there are two ways I know that you can use to send a file as attchemnt using command line, one is using uuencode utility with the "mail" command and the other one using "mutt", I find using mutt command to be much more reliable compared to using uue... Read Full Story
Tech Blog - Here is a simple howto on using mdadm to alert you of failing array Linux Software RAID. this is important becasue failed or failing devices needs to be replaces as diffrent RAID level have different capabilities when it comes to dealing with disk failure.Lets us try to send a test e-mail to make sure that mail is working on your server$ mdadm --monitor --scan --mail= YourEmailAddress /dev/md0 -t -1If your mail is working you will receive a test message from your serverNow we s... Read Full Story
Tech Blog - Here is a simple howto on creating your own CA or Certificate Authority unders Cent OS 5, this howto would also work on other Linux distribution with modification to path where the command could be found, this howto covers creating a certificate authority using OpenSSL and setting up a secure website using Apache with mod_ssl module.For Cent OS 5, you will need to have Openssl, Apache with mod_ssl module, and Openssl tools(openssl-perl), you can easily serach for this packages usi... Read Full Story
Tech Blog - Here is a quick guide in manually editing Varitas Cluster configuration file main.cf, Veritas Cluster is a High-availability cluster software, it provides application cluster capabilities to systems running databases and applications.Veritas HA config file can be found in /etc/VRTSvcs/conf/configSteps in editing the main.cfFirst we stop all the cluster with the hastop command$ hastop -allThen we create a backup copy of the current configuration file$ cp main.cf main.cf.backu... Read Full Story
Tech Blog - If your sick and tired of being stuck on using Internet Explorer, you might want to check out Google Chrome Frame, Google Chrome Frame is an open source plug-in that brings Google Chrome's open web technologies and speedy JavaScript engine to Internet Explore. * Start using open web technologies - like the HTML5 canvas tag - right away, even technologies that aren't yet supported in Internet Explorer 6, 7, or 8. * Take advantage of JavaScript performance improvements to make ... Read Full Story
Tech Blog - This is an update review of Smart Bro Broadband Service I did last year which can be found here, After subscribing to their service for one and half year I have finally decided to discontinue their service, my primary reason is their pathetic customer service and long down time period, for the first year of my subscripton down time and customer service are in acceptable level meaning, down time and issue related to it are resolve within a day and calling Smart Bro customer servic... Read Full Story
