Albiore

In Linux to mount an iso image as if on the CD can type the command:

sudo mount /ISOimage.iso/place/where/mount -o loop

but if we dont want or we can’t use the console we can use the program Gmount-iso, which is very easy and have an intuitive interface that allows you to choose the image to mount and where to be mounted, even if is in the cdrom drive, and  we can easily unmount the images that we have mounted.

This program can be found in the repositories and install it as follows for Debian/Ubuntu:

sudo aptitude install gmountiso

If you use Linux and need to create or edit image files there are a variety of open source programs you can use, as Kolourpaint that despite being a very simple to use, can do complex projects and in high quality.

Its interface is very similar to the Windows Paint but has many tools that do a much better choice for working with images.
Besides the common tools such as drawing and selecting, for example, we have the color eraser tool with which delete only the color that we selected in addition to being able to replace with the color in the second selection.
Another useful tool is the “similarity of colors” in which we can choose a color accurate that resemble a 30% complete when a space or delete something.
Besides featuring a great historial record so we can make many changes to an image and return with Control+Z to long ago.
We find from the repositories

When you administer a network and/or care problems and user concerns, is rather uncomfortable and time consuming to go to the place of each one to see what happens.

For these cases there is a very good tool called VNC, with it we can remotely view the desktops of the users of our network, so that you only have to install Real VNC program on the computer of each user, set a password that will ask us at the time to connect and have a list of IP addresses for each computer.

Now we have to install the program on our computer, in Windows is the same as the previous program, for Linux can install the program vncviewer or vinagre.

Now just run these programs, choose which computer to connect using the IP address enter the password we set earlier and ready, and we have the computer control of our user.

For Windows you can download the Real VNC from here.

Almost every Linux distributions bring the vncviewer or vinagre, if not, we most likely find it in your repositories. Or for Debian/Ubuntu
sudo aptitude install vncviewer or vinagre

For a system administrator is vital to have current backups of the information servers.

A great way to have these backups is to use the program Winrar, the best time to do backups with this program is the end of the day when we are about to leave, because this way we are more confident that all files are included in our compilation.

To get the most compression and archive our take up as little space we select the maximum compression option and check the box for “Create a solid file” as shown in the image below:

On this occasion I want to share with you how can boot a Linux distribution directly from a USB drive.

It’s a really simple process, first download the UNetbootin program, you can do it from here for both Windows and Linux.

We executed and we get the following window appears:

If you select the option “Select distribution” you can choose any of those shown in the list, the program will download and install in the USB.

If you select the option “Disk Image” we can select any ISO image that we want to install on the USB.

Click on next and begin the process, take a few minutes and when it finish will show the option to restart or close, our USB memories will be ready to boot, for this we must enable the option in the BIOS and turn on the computer when he asks where we want to “boot” or start, varies from computer to computer,

Although many do not believe or do not want to, when we make some UTP network cable is very important to follow the color code set, not enough that the plugs and jacks in matching colors, this is because the peer Orange and White-Orange, as the Green and White-Green is why, following the standard will result in data traffic, so these are more twisted to have less attenuation and noise, I will explain with an example :

We hired a service of installation of surveillance cameras for a very large complex, the maximum distances were laying cable of about 400 mts. For all the cables Cat6 UTP cable was used when everything was installed it was time to connect the cameras to DVRs (recorders) and we had problems with some of the cameras in which they had a poor quality or was blank and black, after reviewing long wiring, the technicians had to change the pairs of wires and cameras that use the reserve had been left in case one failed. Here I was just an spectator, because they were the “experts”. When they change the wires of the cameras that were failing, the manager told me, “hey what a coincidence, all the cables failing were the blue and brown, I could not hold my BOFH side and said, “Sure, what you spected”, and then I explained the color codes in UTP and he looked at me with an expression of “How long lost,” he said, “oooh now I see”.

For these situations it is important that this kind of work where made by people who know, although easy to see, not everyone can do well, if he does not know it.

So stay in school.

Here I bring you some keyboard shortcuts in Windows that have been very useful:

Win + M = Opens a window to activate the onscreen keyboard and screen magnifier

Win + Pause = Opens the System Properties window

Win + D = Minimize / Maximize All Windows

Win + M = Show the desktop

Win + E = Opens Windows Explorer

Win + L = Locks the screen (session)

Win + R = Opens Run window

Ctrl + Esc = Opens the Windows Start

Ctrl + a = Select All

Ctrl + f = In the file browser window opens search

Alt + F4 = Closes the current window

Alt + Enter = Maximize/desmaximize a playing video

Alt + Tab = Switch between open windows

If you are a newcomer to Linux, or want to make the change but do not do it for fear of not being able to work at 100%, here I show you a list of some of the most used programs in Windows with free alternative to Linux.

I hope might help:

Suite Microsoft Office (Word, Excel, Power Point).- Suite OpenOffice.org, Suite Koffice

Adobe Acrobat.- Xpdf, PDFCreator

Acrobat Reader.- Kpdf, Xpdf

Dreamweaver (can install it with wine).- Kompozer, Blue Fish, se puede emular con wine

FrontPage.- Quanta, Nvu

MSN Messenger.- Kmess, Pidgin, Amsn

Internet Explorer.- Mozilla Firefox, Konqueror

Matlab.- Koctave, Genius

Maple.- YaCas

Autocad (can install it with wine) .- FreeCAD, Qcad

Orcad.- Kicad, gEDA

Pspice.- Electric

Electronic Workbench.- Electric, Gerbv

Adobe Photoshop.- The Gimp, CinePaint

CorelDraw.- Inkscape, Karbon 14

3D Studio Max.- Bender, k-3D, Art Of Ilussion, Maya for Linux

Nero.- K3b, CDbakeoven, Brasero

Windows Media Player.- VLC Media Player, Kaffeine, Mplayer

iTunes.- Amarok (Ipod zync), Rhythmbox