Java plugin not installed

Solution

The automatic Java plugin in Firefox on Linux will fail all the time, so you have to manually install the plugin to get it working. Install ‘icedtea6-plugin‘ to get over the problem.  Note: For OpenJDK 7 users, you need to install icedtea7-plugin.

sudo apt-get install icedtea6-plugin

Ubuntu IcedTea6-Plugin install

Test for Java

Problem

When the users installs MySQL and Apache server from Synaptic, it automatically gets added to the system startup services. Hence by default these two services will execute. When you try to start XAMPP, it will throw an error saying that the MySQL and Apache daemon are already running. Since we have already covered on how to disable startup service in linux, we are not going to do the same now. Instead this post guides on how to disable the default services and run XAMPP successfully.

Exact Problem message : XAMPP: Another web server daemon is already running. XAMPP: Another MySQL daemon is already running.

Solution

Earlier we used to stop a service by /etc/init.d/mysql stop and /etc/init.d/apache2 stop commands, but these commands are deprecated in some distributions. The best way to stop these services is using the service utility. The commands are

• sudo service mysql stop
• sudo service apache2 stop

Mysql Apache2 Error

Install Adobe flash from Archive tar.gz

1. Download the flash player (tar.gz format) from Adobe page.
2. Extract the file using the command tar -zxf <filename>
3. Make a folder called plugins in the mozilla directory (~/.mozilla) using the command mkdir ~/.mozilla/plugins
4. Move libflashplayer.so file to the plugins directory using the command mv libflashplayer.so ~/.mozilla/plugins
5. Restart firefox for the change to take effect.

Install firefox in Ubuntu using archive

Pre requisites

• You need to have Wine installed in your Linux Distribution.
• Incase you face any problem with DLL issues, use the solution given in this troubleshoot tutorial.

How to use Ultrasurf in Linux

• Download Ultrasurf (most often comes in a archive .zip file), extract the file to a specific destination.
• In my case I have extracted it to the Downloads directory in Ubuntu.
• Open Ultrasurf (.exe) file with Wine Program Loader.
• The below window pops up, click on the Options icon and select Proxy Settingsto set your network proxy settings.
  

  UltraSurf running on Ubuntu with Wine

• Click on Ok to apply the settings. Ultrasurf has now been configured. A status message saying ‘Successfully connected to the server’ will appear if the proxy settings you gave are valid.
• Now you need to change the proxy setting of your browser to connect through Ultrasurf. The proxy settings that must been given in the browser are (IP Address : 127.0.0.1) and (Port : 9666).
  

  Proxy Settings in Linux Ultrasurf

• Your browser and ultrasurf is configured and you are now free to open all blocked websites in your network.

P.S. Incase your college network has restriction on download file size (eg. you cannot download a file greater than 15 mb), ultrasurf gets rid of this problem for you. So no more ‘The request or reply is too large’.

Also you cannot use ultrasurf to download torrents.

Proxy Settings in Google Chrome for Ultrasurf

The quick workaround for this solution is to launch the application with a & (ampersand) in the end. This will launch the application and separate the terminal form it. Hence you are free to use the terminal from there on, without disturbing the launched program.

Example Launch Program

sudo nautilus &

This will open the nautilus in root mode and not log the messages in your terminal. Hence the program will look like its launched separately. Incase if you are writing your custom launch application you can make use of this command argument  (&).

Install PDT in Eclipse from Archive File

1. Incase if you already have Eclipse installed in your computer, skip to step 3.
2. Download the Eclipse archive file and extract it to the OPT directory. (opt is my preference, you can extract to any location). The command “tar -xvf eclipse-jee-helios-SR2-linux-gtk.tar.gz -C /opt”.
3. The online manuals of Eclipse PDT says that you have to extract the Eclipse PDT archive in the dropins folder of the parent Eclipse folder. However after several tries, I came to conclusion that it will never work that way.
4. You need to extract the Eclipse PDT to the parent folder of Eclipse directly. This way all those extra plugins and modules present in the PDT will be copied to the parent Eclipse directory.
5. Thats it, now you can simply run Eclipse and you can see PDT has been installed to your Eclipse.

Note: If you don’t see PHP options, simply browse the Software option in the Help in menu and enable the PDT. (This case its installed but not enabled by default)

Eclipse PDT in Action

1. ixme:storage:create_storagefile Storage share mode not implemented
2. err:seh:raise_exception Unhandled exception code c0000005

I have been trying to run a proxy software under Wine and these two errors were thrown and the application terminated itself. At first I thought the problem was with the graphics card, I removed the graphics card driver and installed the latest one, still no use. Later I figured out that the issue may be with the dll files that I copied.

Wine - Windows Emulator

Wine does not come inbuilt with some dlls, while I executed the application for the first time it prompted me with the warning that the following dlls are missing (msvcp60.dll and mfc42.dll). I downloaded the dlls from the Internet and copied them to the System32 folder of the Wine directory. That was the mistake I committed, the DLLS that I downloaded were old and incompatible.

Solve the DLL Problem in Wine

I resolved this problem by using Winetricks to install the DLLs for me, rather than manually downloading and copying them to the System32 folder.

winetricks corefonts vcrun6

Run the above code in the terminal and it will automatically download the required fonts and dll to your Wine directory. vcrun6 indicates the visual 6 environment files. You can also select vc2003, vc2005 and vc2008 depending on the software that you will be using.

Magnify Screen using Shortcut

The shortcut for magnifying the Screen is

Zoom Up – Windows Key + Scroll Up

Zoom Down – Windows Key + Scroll Down

The Level of Zoom depends on the amount of the scroll. To my amazement the tool can zoom to a much greater level than expected.