How to create local repositoy RHEL 6

As in the post How to create local repositoy SLES 10 we also can do the same thing on RHEL (Redhat Enterprise Linux) 6 using yum. Here are the steps :

1. Install the createrepo package:
2. Copy all of the packages into one directory, such as /home/choirul/local_repo/ 
3. Run the createrepo --database command on that directory:
   

   createrepo --database /home/choirul/local_repo

4. Create a new file in /etc/yum.repos.d, with the following contents:
   

   # cat /etc/yum.repos.d/local.repo
   [local]
   name=Repository from DVD
   baseurl=file:/home/choirul/local_repo/
   enabled=1
   gpgcheck=1
   gpgkey=file:/home/choirul/local_repo/RPM-GPG-KEY-release

5. update yum with command
   

   yum clean all
   yum update
   yum list

6. You can find file RPM-GPG-KEY-release in root directory of RHEL DVD

The above step is for repository that locate in folder. Beside, we also can create repositoy using iso file. Here are the steps :

1. create mount point for repository :

   mkdir -p /path/to/repo

2. Mount iso file on the mount point that you just created

   mount -r -t iso9660 -o loop /path/to/image/file.iso /path/to/repo

3. If you use your cd/dvd drive, you must know where is your drive located. To know that see Linux Sysinfo command. Use this command to mount your drive

   mount -r -t iso9660 /dev/device_name /path/to/repo

4. Choose a name for the repo file and open it as a new file

   vi /etc/yum.repos.d/dvd.repo

5. Supply the details of the repository. For example:

   [dvd]
   name=ISO
   baseurl=file:///mnt/repo/Server
   enabled=1
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
   

6. update yum

If for some reasons you need to install library, you can use command yum whatprovides [library_name] as below:

[root@short Downloads]# yum whatprovides libQtGui.so.4
Loaded plugins: presto, refresh-packagekit
1:qt-x11-4.5.3-7.fc12.i686 : Qt GUI-related libraries
Repo        : fedora
Matched from:
Other       : libQtGui.so.4
[root@short Downloads]# yum install qt-x11-4.5.3-7.fc12.i686

How to X Forwarding with Putty

Unix machines have been able to run software on a remote machine and display the GUI locally. Linux and Mac OS X support X Forwarding with no extra software.
Any terminal on Linux should do X Forwarding.
For Mac users need to run "Applications > Utilities > XTerm". In a command line terminal run "ssh -Y user@server virtualbox" and you'll be running matlab on "server" but seeing it on your desktop. In this post we will discuss about How to X Forwarding with Putty.

Windows users need two pieces of software: an secure shell program (putty) to establish the remote connection and an X Server to handle the local display(xming). Click here to install putty and xming.

Below are the steps to configure putty:

1. Add Unix hostname
2. Switch Protocol to SSH
3. Type name of session in saved sessions
4. Click 'Save'

   

   putty: create session

5. Expand the 'SSH' tab from the 'Category' list
6. Choose 'X11' from 'SSH' list
7. Check 'Enable X11 Forwarding'

   

   putty: enable x11 forwarding

8. Choose 'Session' from 'Category' list
9. Click 'Save'

Below are the steps configuring Xming :

Just run "All Programs > Xming Xming" and it should work if you've got PuTTY configured. 

Connectiong putty :

1. Start Xming
2. Start Putty
3. Double click on the saved session that has been configured for X11 Forwarding
4. After connect, run application that use GUI, for example: virtualbox

How to create local repositoy SLES 10

To help us in software management using yast on SLES (Suse Linux Enterprise Server) 10 we can make a local repository in the form of iso image of the DVD SLES10. The following are the steps to create a local repository :

1. Create ISO file from SLES10 DVD
2. Copy ISO file to your server
3. Add the ISO as a service (installation source) using command below :
   

   zypper sa "iso:/?iso=/home/choirul/iso/sles10sp1.iso" "SLES 10 SP1"

4. Verify that the service has been successfully added using this command :
   

   zypper sl

5. Open yast and choose Software > Installation Source. It will appear as below :
    

   

   Add capHow to create local repositoy SLES 10tion

6. There must be 2 items. First for dvd and second for iso. You can optionally disabled the source from DVD

Free Download Flash Game

Flash game is one type of game that is quite popular as entertainment. Besides offering many variants, it is light enough so that you can still play it smoothly in old computer.

There are lots of websites offering flash games that can be played online. Of course, to play it you should always be connected to the internet. How if there is no internet connection when you want to play flash games? The solution is surely to download and play it offline.

Free-soft.ro is one of sites that offer flash games that you can download for free. There are several download options to choose. For the full version untill trial and the large until the small one . If the size is considered too large, you can download partially.

Lock Computer With a USB Flash Drive

We are familiar with USB flash drives that are often called a flash disk. Apparently, the flash disk is not only can be used to store and carry files, but also can be used to lock the computer, with application called Predator. The concept is simple, when we lift our flask disk, the computer is locked. Then when we plug back the flash disk, the computer will be used again.

Predator is a very simple application. We just need to plug the flash disk, run the application, and start working. When we need to leave the computer for a while, we just pull out our flash disk, keyboard and mouse will be locked. The computer screen will also be dark. When we return, we only need to plug the flash disk that serves as the key before, and we can continue with the work.

Predator can also be set to use a password when we will unlock the computer. To anticipate when the flash disk as the primary key is lost, we can make a spare key with a flash disk, which can be used in an emergency.

Predator available in the paid version and free version. We can use it free for personal use. It can only be used on computers running Windows operating systems only.

You can download it in it's official web site.

Dexpot – Virtual Desktop Manager

By default Windows has only one desktop (with wallpaper, icons and taskbar). If you want to have more than one desktop (virtual desktops) then you must install other software.

Backup and Restore using EASEUS Data Backup

Computers can help us to work quickly and efficient. However, there are many things that can interfere with the performance of computers that we use. For example, computers that we use may experience a hardware failure or system crash suddenly. In that time, it is useful if we have a backup of the system, partition, and disk, so we do not need to lose our file that is stored in a computer.

Capturing the Web View Using Screengrab

To capture the screen display we would have used the Print Screen button. To capture the look of our website, we may also use these buttons. But what if we want to capture the whole web interface though it has the long page??

Anti Keylogger with SpyShelter

Internet has become an important part in our lives, as personal or as employment. As the usage of online systems increase, the cybercrime increase too. There are a lot of software designed to steal our data, and their number continues to increase.

Remote Desktop using TeamViewer

We can control a computer remotely, using specific software and Internet networks. The problem is, most software requires a lot of settings that are complicated. However, there is software available that can help us control the computer remotely easily.

Beautify Desktop with Rainmeter

Rainmeter is a free software to display various system information such as CPU, RAM, network connections, weather, playlists, etc as widgets.It is only display the information, but also will beautify our desktop appearance.

Change desktop to be 3D

There are many ways to make desktop look more attractive. One of them is BumpTop 3D. By using this we can change the look of our desktop into 3 dimensions.
Click BumpTopInstaller.exe to download this software.

Desktop make over with 360 Desktop

The display of the desktop on our computer can affect our mood. Desktop that look less attractive and interactive will make us feel saturated, and less enthusiastic in the work. Instead, fresh and attractive desktop looking can be a source of our inspiration in the work.

Backup and Synch using Dropbox

When we work using a computer, we have to deal with so many files. Managing multiple files is not easy. For example when we have to edit some files there, then we want to update our database with a few files that just edited. Doing this manually will be very confusing. To synchronize these easely, we should use a special application.

Convert Video using iWisoft Free Video Converter

Using computers, we can enjoy the convenience to access various types of media. We can see the collection of photos, listening to music and watch movies or videos. Movies or video stored on our computers in a lot of different formats. Some of the formats are AVI, MPEG, DivX, FLV, and so on.

Scheduling using Essential PIM

If you are very busy, you may need a software to organize your schedule. 'EssentialPIM' is one that you should try. EssentialPIM can assist in managing the daily activity schedule, save addresses and contacts, and store a variety of important records.

We often need to create a file in pdf format. A business proposal example, will look more attractive and professional when we send to our business associates in the form of a pdf file rather than a doc or docx file. However, to make the pdf file is not easy. The application must be able to create pdf files from any application that we use in the work. There are so many applications that can be used to create pdf files. One of them is 'Bullzip PDF Printer'.

The limited capacity of harddisk is often a problem for computer users. So, sometimes they need to clean their computers. To clean the unused files, such as temporary files and so on, computer users can do it manually. However, cleaning the hard disk of unnecessary files manually will certainly spend a lot of time. To do it all easely, computer users can use the software called 'BleachBit'.

Change the File Format Online

When working with computers, we use a variety of file types. Sometimes, we need to change the format of a file to another format. For example, maybe we need to change the file with .doc format to .pdf format. Indeed there are many software that can help us. But something often becomes a problem is when we need to change the format of a file quickly, but we do not have the software to change it, and we do not have much time to search for that software.

Backup and Restore Driver using Double Driver

Double Driver is a free software that you can use to backup and restore the drivers on your computer. Backup driver is very useful if one day you need to reinstall Windows and maybe you do not have the CD driver.