Introducing Proxmox VE, Another Awesome Virtualization Platform

In the past on EssayBoard, I’ve often mentioned about VirtualBox.  In this post, I like to introduce you to another awesome virtualization software.  OK, so we all know how cool VirtualBox is — it’s free and awesome at virtualizing such as creating a virtual machine.  What VirtualBox doesn’t have, Proxmox VE probably has them.  For instance, VirtualBox has a powerful graphical user interface which depends entirely on an operating system to control and manipulate each virtual machine, but with Proxmox VE you have to use a browser to do so.  In fact, if your operating system has Java working correctly, Proxmox VE allows you to use Java to open up a console which is known as Open VNC so you can manipulate your virtual machines as if you’re physically sitting right in front of them.  Besides Open VNC, Proxmox VE also allows you to use Qemu to manipulate the virtual machines using the browser (I’m not familiar with qemu yet).  Simply put, Proxmox VE has a very powerful web interface that allows you to manipulate virtual machines.

Installing Proxmox VE is easy as pop in the CD/DVD which has Proxmox VE’s installation image, filling in necessary information that are self-explanatory, and just watch it installing everything without any further intervention.  Before installing Proxmox VE, make sure you backup whatever you need on that hard drive or it will be wiped out by Proxmox VE!  After Proxmox VE is done with the installation, make sure you execute the command [sudo aptitude update] and [sudo aptitude safe-upgrade].  Don’t forget to secure Proxmox VE by installing a firewall and antivirus and so on.  If you’re installing firewall for Proxmox VE, make sure you open up ports 80 and 443 for incoming connection so you will be able to use your browser to manipulate Proxmox VE’s virtual machines.

Creating virtual machines with Proxmox VE is really easy!  I prefer to go with KVM (full virtualized), but if your hardware isn’t capable of doing KVM, you can do OpenVZ.  KVM allows you to upload any operating system image such as an ISO of Ubuntu from Ubuntu’s website; you can install that inside a virtual machine.  OpenVZ requires you to use a ready to deploy images/virtual-machines such as an OpenVZ template, and these you can download inside the web interface of Proxmox VE.  Unfortunately, OpenVZ templates are not up to date since I see many of them are packaged with older operating systems such as Ubuntu 8.04.  We all know at this point in time Ubuntu is at version 10.10.  This is why you should go for KVM when possible.

Promox VE also supports cluster, but I haven’t had a chance to mess around with this yet!  Fortunately, you don’t have to wait for me to get some experience with Proxmox VE’s cluster, because someone else has already post a how-to cluster with Proxmox VE at here.

In summary, I’ve found Proxmox VE very stable for running virtual machines.  The Open VNC console still needs some improvement in my opinion since when I used it to install my virtual machine, I couldn’t open it to full screen view.  Luckily I’m an adept at installing Ubuntu, and so I was able to blindly installing Ubuntu with some of the instruction weren’t showing up on the console.  The web interface is a nice touch since you can control your virtual machines anywhere as long you are near a computer with an Internet connection and without a terminal/shell/putty.  In the end, Proxmox VE is awesome.  I won’t compare Proxmox VE against VirtualBox, because in the end it comes down to personal taste and experience.  Why don’t you try Proxmox VE out and let me know what you think about it in the comment section below this post.

Oh, I forgot to tell you that Proxmox VE is free to download and free to use!  Get it here!


Permanently Stop Services From Running On Ubuntu Using Sysv-rc-conf

Short tip on how to turn off services inside Ubuntu server using command line.  As we all know Ubuntu server does not use graphical interface, and so it’s impossible to use any utility which provides graphical interface to turn off certain running services.  If you know the service daemon name under /etc/init.d/, you can execute the command [sudo /etc/init.d/servicename stop].  That command is only stopping the service from running at the moment you execute it, but the next time you reboot your Ubuntu server, the very same service will run again.

Here is the trick to stop the service permanently by installing sysv-rc-conf.  So inside your terminal, execute the command [sudo aptitude install sysv-rc-conf].  When you have sysv-rc-conf installed, inside terminal, execute the command [sudo sysv-rc-conf].  Sysv-rc-conf will pull up a text screen where you can remove the checks among the run level boxes of each service.  After finishing removing the checks among the run level boxes of each service, type q at the terminal to quit.  That’s it!  The services you want to stop from running forever will forever stop running unless you are going to turn them back on using sysv-rc-conf.

Note Keeping Tool On Steroid, Also An App In Mac’s App Store, Introducing You The Evernote

Keeping notes nowadays isn’t hard, especially tons of apps on Mac, Windows, Linux and mobile devices such as iPad are easily accessible.  Nonetheless, in my opinion not that many apps have came close to be as awesome as Evernote.  Evernote is available for Mac, Windows, and Linux.  In this blog post, I’ll be specifically talking about Evernote on Mac.

Evernote is an app that you can download from Mac’s App Store.  Drag and drop this baby inside your Application and you can begin to use it.  You do have to create an online account with Evernote before you can use the app, but this is cool since Evernote also has a web interface in case you aren’t around your favorite devices.  As long you are near a public computer with an Internet connection, it’s a pretty done deal for you in the case of wanting to access your notes at whatever cost.

Just imagine your favorite note keeping tool is on steroid, this would be Evernote.  Better yet, Evernote has a feature which is known as Sync, and using this feature allows you to hop from one device to the next without losing any note.  Evernote creates your notes inside something they call as notebook.  With Evernote, you can create more than one notebook to organize your notes.

Creating new note is easy since Evernote’s editor is pleasant to use but powerful.  One feature I like is that you can add ToDo checkbox inside your note which is pretty convenient for creating notes such as shopping list.  Talking about shopping list, it’s totally feasible since smart-phone users can download Evernote, open up the shopping list note which they have created on their desktop or laptop a day earlier or however long before the present time thanks to Sync feature, and wandering around inside a shopping center or a grocery store to pick up items that they had recorded inside their notes.

Of course with Evernote you can do a lot more than just create shopping list.  In fact you can clip anything such as a portion of a document or website to your note for editing later.  How about using iSight to snap a snapshot as note?  Obviously, asking such a question to point it out to you that Evernote is allowing you to do just that with iSight.

Since creating notes with Evernote is to simply put you on a course of finding such notes at a later time.  What the point of keeping notes, right?  Evernote has provided many ways for you to pull up a note that you had recorded eons ago.  Since the start of creating a first note, you can already tag the note with tags.  Tags help you pull up notes quickly depending on certain keywords you have in mind.  Finding notes by date is also feasible with Evernote.  Searching for specific text and keywords inside Evernote’s search box also allows you to pull up forgotten notes fast.

With Evernote, you can also exporting notes for backup and later on importing them to restore the notes.  Other cool features that Evernote has such as allowing you to merge notes together.  Oh, sharing notes through email using Evernote is also feasible as long you have an email application installing on your computer.

I think Evernote is one excellent tool for people who have tons of notes to take.  Especially useful for students of all levels.  Evernote is free to download, and free to use.  You can also upgrade your Evernote account to premium, and by doing so Evernote boosts your monthly upload to 1GB each month.  With premium account, Evernote users can also collaborate with each other such as editing the same note together at the same time and so on.  At this point in time of this writing, Evernote charges $5/month or $45/year for a premium account.

By recommending Evernote to you, it doesn’t meant I’ve any affiliate relationship with Evernote’s company.  In fact, I’m only a fan.  I think Evernote deserves my attention fully over all other note keeping utility tools on my computers, because it’s so capable and easy to use.  To learn how to use Evernote on Mac in details, you can visit here.  To learn how to use Evernote’s web interface, you can visit here.  I’m pretty sure you can google for how to use Evernote in details for other operating systems.  Have fun keeping notes with Evernote!