Tag: Servers

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VMWare Is Building A Cloud-Computing Powerhouse

While not exactly a household name, virtualization development company VMWare has made great progress in terms of both consumer-based and commercial server and desktop virtualization; the technology that allows for multiple operating systems to run simultaneously in a shared “host” and “guest” infrastructure.  For many day-to-day users, this type of application allows one to run a copy of their favorite Linux distribution within their comfortable Windows or Mac OS X session.

However the value of this functionality is exponentially greater when it comes to server virtualization in large companies, as products like VMWare Server make it viable for IT departments to better utilize resources and ensure better stability by sand-boxing different services in their own virtual operating system environments.

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5 Things to Consider Before Buying Web Hosting

When establishing an online presence for yourself or your business/organization, there are a number of important components that help your content stand a better chance at being found and becoming successful on the vast sea of information that is the Internet.  Personally, I have always been a stickler for creating high-quality content, as I believe that this is the single most important aspect to any blog or website.  In the past, this has led me to write articles about why content is important and even on how to write and produce better content.  At the end of the day, however, content is only one component that helps to drive your websites success, and shouldn’t be your only focus with your online presence.

One aspect of our online presence that many people tend to neglect thinking about is their web hosting service.  Sure, your average consumer will usually check out a number of web hosting providers before purchasing service with one provider or another.  In a previous video, Jeff discussed a number of reliable web hosting and dedicated/virtual server providers.  However, even with the amount of information and reviews that are available for various hosts, many people shop for hosting based on one thing: price.  Sadly, many people simply neglect to consider the reputation and reliability of their web hosts, and ultimately end up missing out on a what could be a much more successful online presence.  But this leaves us with the question; what makes a good web host?

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How To: Disable Root SSH Login on Linux

If you have your own server chances are you will want to keep it secure from unauthorized users. One security tip I always recommend to people who are setting up a new server is to disable the ability to login as root with SSH. By disabling root SSH login capabilities you are putting up another road block for those unwanted users who may try and use brute force techniques to gain access to your server.

When you disable root SSH logins, the intruder would need to know your login and then figure out your root login credentials once they were able to login as you.  Thus making it a bit more difficult for them to gain access.  Before you go ahead and disable root logins via SSH, it’s important that you have a separate user account setup so you can still login via SSH once you disable root logins.

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Why Your Website Should Use A CDN (Content Delivery Network)

The other day I wrote a post, “What Is A CDN?” where I explained what exactly a CDN (Content Delivery Network) is, how it works, and what it does.  I’d like to elaborate a bit on the post and go into a few of the things you can do with a CDN, how it could be beneficial to your site (large or small), and how you can do it for a relatively low price.

There are typically a few different types of Zones you can configure with a CDN – push, pull, vod, and live (still relatively new).

Push Zones are built for larger files that rarely change. The data is uploaded to a storage array which is then automatically pushed to all of the servers in the CDN. The files remain until modified or the zone is deleted. (e.g. PDF’s, Installers, E-Books)

Pull Zones are for your every-day files. A Pull Zone will automatically pull the data from a location that you specify upon the first request for the file. The data is automatically deleted from the server after an customizable amount of time. (e.g. CSS files, Image files, JavaScript files) – Note: this is the type of zone I’m using for BestTechie.

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What Is A CDN (Content Delivery Network)?

A CDN (or Content Delivery Network) is a network of servers that delivers cached static content from websites and applications to an end user based on several factors including the geographic locations of the user, the origin of the static content, and a content delivery server. Essentially, what the job of a CDN is to get the content being requested by the user, delivered to the user as quickly as possible.

In order to fulfill this need the CDN utilizes technology standards like Anycast, lighttpd or nginx, and BGP to send the static content files to the network of servers that are dispersed throughout several strategic geographic locations around the world which then cache the contents of the file. Then once a user who visits a website their computer (browser) makes a request to the server to download the content for viewing. Now this is where a CDN comes into the play. If the website is running a CDN, the CDN will use Point of Presence (PoP) technology to deliver the content being requested by the user using the closest server to their location.

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