Thursday 18 December 2014

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Thursday 20 November 2014

Simple Steps - Protect your Computer Online

By: Nam Sss So you've bought your computer and want to get online? It's not as simple as connect the wire and off you go these day's. The internet is a weird and wonderful place as long as you can control what you do. That's why you need to protect yourself. These can be done in a number of very simple steps. This article will get you started but you should always try to be smart when your surfing the net! Step 1: Anti-Virus Scanner Whether you're connecting to the internet or not, you need an Anti-Virus scanner. Your computer can become infected with "viruses". These are little files or codes that have been written to ruin your computer! That's why they must be stopped! There are many programs out there that can help, but it's best to trust only the mainstream programs as these are used widely and updated regularly. Recommendations: AVG Anti-Virus Free http://free.grisoft.com/doc/1 Avast antivirus http://www.avast.com/ Step 2: Firewall Ok so your thinking what is a "firewall" sounds scary right? Well it's not really. It is again another line of defence against the number of ways your computer can be attacked. In simple terms it blocks other computers and programs from connecting to you and playing with your stuff. Think of it as an internet wall of fire, where you allow what can pass through. Software - Again there are many programs available to protect you, Recent Microsoft Windows machines come with Windows Firewall, which can be described as basic at best. We do recommend you go for mainstream again. Hardware - A firewall can also be included as part of your hardware, like an internet router "that's the box that sits between your pc and the internet line". This is the best and recommended way to have a firewall. As it blocks intruders before it gets to your pc. Recommendations: Zone Alarm http://www.zonelabs.com/store/content/company/products/znalm/freeDownload.jsp Step 3: Be AWARE!! Simply put watch what you download and accept to save to your PC, sometimes people can send you files in e-mails. They look ok but when you run them they will install something onto your PC and leave you upset and distraught. Always scan something that has been downloaded before opening it and never open/run programs that have been sent in an e-mail from unknown sources. Step 4: Go for it That's pretty much it to get you going. If you think something doesn't look right, it probably isn't. Hopefully this will get you going to start with, wait till you find out about spy ware and Trojan's!! Good Luck and Safe Surfing Author Bio Nam www.LionBlade.com Article Source: http://www.ArticleGeek.com - Free Website Conten

Practical Use of Open Source Code Software

By: Roberto Sedycias As we started the project of our web site, we knew that the proprietary software costs would be too high for our financial resources. Our only option then was to make use of Open Source Code softwares. However, within the Open Source Code there are lots of softwares to choose from, and it´s up to the system analyst/programmer to pick the ones that best suit the project goals. In our case, we picked Linux as our operating system. However we faced a big question: Which Linux distribution ? There are dozens of linux distributions, each one with specific advantages, sometimes with or without paid services. We chose linux Slackware because we thought that it would suit better our needs, in terms of stability and reliability. Slackware is a conservative distribution, meaning that it only offers in its distribution package kernel versions and third party libraries, once it´s been proved to be stable and reliable. As a result, Slackware is one the most stable Linux operating system on the market. If the user wishes the most recent Linux kernel and libraries, we recommend to look for a different distribution. Another reason for us picking Slackware, was because of its text interface, which at the beginning may become a bit difficult, in the long run however it offers a better understanding of the Linux environment. This way most of Slackware configurations are done thru text scripts. Once it was set the operating system, we picked Apache as our web server. Apache is one of the most popular web server in the internet. For server programming language, we chose PHP. Also, a very popular programming language. Our experience with Apache/PHP proves that this setup is very reliable, working extremely well in our production environment. For workstation programming language, we chose javascript, which besides of having a simple syntax, it offers lots of resources. Apache web server is really a complete web server. Also, it can become very complex with many configuration setups. For our database, we picked Postgresql. This database has been made available to the public for more than 15 years, and besides of being well debugged, it offers so many resources that it has become one of the best database options from Open Source Code softwares. Extremely reliable, Postgresql has reported cases where there have been databases in production with over 4 terabytes. Besides all of that, Postresql is not the most popular Open Source Code database. A matter of marketing ? Probably. As for the programming language PHP, we had to use an object oriented application structure. There are many PHP application structures being offered with Open Source Code license. Object oriented application is very important, because it makes programming very easy and scalable up to the point where the system may grow without many problems. Also, it helps to keep PHP code separated from HTML, with the help of some specific libraries, such as Smarty. We make use of Smarty library and we believe that it is a very important resource, which can even make web pages faster thru the use of its cache functions. Also a very important set of libraries worth mentioning for PHP systems, is the PEAR libraries. In PEAR web site, among the many libraries being offered, there are the database interface DB and the MAIL_QUEUE, which sends emails thru the use of database. As we came to the end of our project, we had to use some sort of real time database replication. For that we chose the DRBD and Heartbeat libraries. The use of database replication is very important and should not be postponed. Just after 3 months our system got into production, our server hard disk became bad. Thru the use of DRBD/Heartbeat we were able to put the system back into production within seconds, without loosing any data. DRBD/Heartbeat replication is done thru the use of a lan network between the server and slave nodes. Our project also makes use of ImageMagick (enlarge and reduce images), Iptables (firewall), Tsearch2(text search in portgresql) and Mon (linux monitoring tasks). Also a very important library worth mentioning is the pseudo APC compiler for PHP. Speed is always a critical factor for internet sites. Our web site is already in production and based upon our experience we can say that the Open Source Code softwares we picked, proved to be extremely reliable and stable. Open Source Code softwares can certainly be an excellent option for developing web sites. Send this page to: Author Bio Roberto Sedycias - IT Consultant This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author´s name and all the URL´s (links) mentioned in the article and biography must be kept. This article can also be accessed in portuguese language from the News Article section of page PoloMercantil Roberto Sedycias works as IT consultant for polomercantil. Article Source: http://www.ArticleGeek.com - Free Website Content

Cure Insomnia By Relaxation

By: Philip Jubb Insomnia cures by relaxation have been popular since before man invented fire. We can trace them back, certainly in the case of China, for many thousands of years. It has only been in the last few years that we have been able to confirm the efficiency or otherwise of the Insomnia cure by relaxation. Insomnia itself is a pernicious affliction bringing with it misery and despondancy. Many sufferers of Insomnia and other sleep disorders lay there night after night staring into the dark checking the alarm clock every five minutes and worring about the effects of sleep loss on their performance during the coming day. Getting more and more tense and finding relaxation ever more difficult. How can we use relaxation to help to cure insomnia? One of the first stops for the sufferer looking to cure Insomnia by relaxation or any other way is the doctors surgery. This is an excellent idea as a physical checkup will reveal wether or not there is a physical reason for the Insomnia or just the need to relax. The drawback is that if the doctor finds no physical reason for the Insomnia he is likely to reach for his prescription pad. The drawbacks here are well known. Unbeliveably simply to cure insomnia you could also suffer addiction, morning headaches, daytime fatigue, personality changes, memory impairment, impaired concentration, poor judgment, mood disturbances, and in extreme cases irregular heartbeat, and high blood pressure. The list goes on and on. A safer insomnia cure may well lie in the direction of lerning relaxation, a more natural remedy. This is the reason why drug companies can afford large scale advertising such as TV ads and big internet ad campaigns. They know if they can get a hold of you once, they will trap you and continue to make money off of you for years to come. Their mission is to program you. Whenever you have sleep problems, they want you to think about their products. Used to cure insomnia and many other ailments for thousands of years relaxation rechniques are becoming more and more popular with main stream health care professionals to cure insomnia. As a cure for insomnia you need to practice relaxation regularly , notice the experience of the sounds of the simple things in life. Look into what causes your need for relaxation. When you discover the ways you create stress, you can look for ways you to relax and avoid these stress creators. Plan to cure your insomnia - You need to consider the timing of your relaxation. It should be daily. Perhaps a weekend is better suited to a night out so that you don't have to wake early the next morning for work or during the night for the bathroom. Try relaxing music. Keep your favorite relaxation CD at the office, in the car, or wherever you'll need it most. Certainly by the bedside. Walk a while. If you have at least ten minutes to spare, walking is one of the best relaxation techniques. I have a dog and we walk as often as we can. Pounding the streets or woodland paths is an excellent way of getting rid of frustrations, relaxing, and ultimately, when gently tired, I can can think much more productively. Exercise - Find a form of exercise you will enjoy - yoga and tai chi are great for relaxation. Schedule in relaxation time every day - This could be for as little as 30 minutes a day or one hour away from the office during lunch time. Get into yoga. This type of exercise puts an emphasis on relaxation and breath control. Could have been designed to cure insomnia by relaxation. Practise this at least twice a day, perhaps on waking and when you go to bed. This will train your unconscious mind to be able to quickly take you into abdominal breathing and hence relaxation. A massage is also a great way to relieve stress from the body and ease insomnia. Its great fun and as long as its not your partner doing it :) It's very conducive to relaxation. I will make a bold promise to you right off the bat: I will change the way you think about sleep forever. Send this page to: Author Bio Philip Jubb THE Insomnia Solution Article Source: http://www.ArticleGeek.com - Free Website Conten