VLC player on Fedora: solved

While installing VLC player on Fedora 10 I ran into following error:
rpm -ivh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
Retrieving http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
warning: /var/tmp/rpm-tmp.mBuC1o: Header V3 RSA/SHA256 signature: NOKEY, key ID 16ca1a56
error: Failed dependencies:
    system-release >= 12 is needed by rpmfusion-free-release-12-3.noarch

I got over it by changing into this:
rpm -ivh http://download1.rpmfusion.org/free/fedora/releases/10/Everything/x86_64/os/rpmfusion-free-release-10-1.noarch.rpm

if it is other than x86_64, replace it with either of i386, ppc or ppc64 depending on your system architecture.To check your system architecture, run this:
#arch

The problem here was probably 'coz latest release of rpmfusion does not support pre versions of Fedora 12.

wifi on linux : solved

Finally got wifi up on linux.. Have been trying from 2 days reading tutorials and downloading drivers.. All you guys trying the same on FC distributions(I'm using FC10), on Dell(dual  boot),

follow these steps[...]

Errors welcome:) 

• Download the driver file from DRIVER
• Extract the exe file using unzip.

[root@localhost trial_wifi_varsha]# unzip dell.exe

• Need to follow ndiswrapper instructions if you see any errors while you using ndiswrapper.

          (NDISwrapper is a free software driver wrapper that enables the use of Windows XP drivers for network devices on Unix-like operating systems.)

            [root@localhost trial_wifi_varsha]# ndiswrapper -i DRIVER_US/bcmwl5.inf
            [root@localhost trial_wifi_varsha]# ndiswrapper -l
             bcmwl5 : driver installed
            device (14E4:4315) present

• [root@localhost trial_wifi_varsha]# ndiswrapper –m

module configuration information is stored in /etc/modprobe.d/ndiswrapper.conf

            ( -m writes  an alias for wlan0 (default wireless device) into module  configuration file so that ndiswrapper kernel module  is  loaded automatically when this interface is used.)

•  [root@localhost trial_wifi_varsha]# depmod -a
(so that the correct module dependencies will be available immediately after booting the system.)
• [root@localhost trial_wifi_varsha]# modprobe ndiswrapper

• edit /etc/modprobe.conf

(manually add the alias into /etc/modprobe.conf)

[root@localhost trial_wifi_varsha]# vim /etc/modprobe.conf

add this line: alias wlan0 ndiswrapper

• Configure network manager System>Administration>Network to get associated with the Access Point or manually configur using following commands.

1. To list the Access Points available.

[root@localhost trial_wifi_varsha]# iwlist wlan0 scan

2. Configure to get associated with one of the AP:

Assuming you want to use the ESSID named MyEssid:

Ø  No encryption

 # iwconfig wlan0 essid "MyEssid"

Ø  WEP

using an hexadecimal key:

 # iwconfig wlan0 essid "MyEssid" key 1234567890

using an ascii key:

 # iwconfig wlan0 essid "MyEssid" key s:asciikey

Ø  WPA/WPA2

  (might get this error!                       

Error for wireless request "Set Encode" (8B2A) : SET failed on device wlan0 ; Invalid argument.)

You need to edit the /etc/wpa_supplicant.conf file as described in WPA_Supplicant. Then, issue this command:

 # wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf

This is assuming your device uses the wext driver. If this does not work, you may need to adjust these options. Check WPA_Supplicant for more information and troubleshooting. 

3. Finally, provide an IP address to the network interface.

for DHCP,

# dhcpcd wlan0

Or
for static IP.

# ifconfig wlan0 192.168.0.12

# route add default gw 192.168.0.1

4. Regardless of the method used, you can check if you have associated successfully as follows:

[root@localhost trial_wifi_varsha]# iwconfig wlan0

wlan0     IEEE 802.11g  ESSID:"MyEssid" 

Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1B:57:EC:4A:27  

Bit Rate=54 Mb/s   Tx-Power:32 dBm  

RTS thr:2347 B   Fragment thr:2346 B  

Encryption key:”the key!” Security mode:restricted

Power Management:off

Link Quality:70/100  Signal level:-51 dBm  Noise level:-96 dBm

Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Blogger Static Home page

To make a static start page add this code just after <body> tag n before main-wrapper

<b:if cond='data:blog.url == data:blog.homepageUrl'> 

   <div id='startpage'>

    <!-- Start Page-->

    </div>

<b:else/> 

     <div id='main-wrapper'>

        <b:section class='main' id='main' showaddelement='no'>

        <b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>

        </b:section>

      </div>

</b:if>

Oracle thin driver on Eclipse

1.      Add jar files

In Eclipse, after creating a new project -> right click on projname-> properties -> select Java Buildpath-> Add External Jars-> jar file path -> Ok

Jar file pathàC:\oraclexe\app\oracle\product\10.2.0\server\jdbc\lib

2.      Start adding new class file

To use the DriverManager class to create connection objects, you need to know how to make a connection URL that provides access information to the Oracle server. The Oracle connection URL for the thin client-side driver ojdbc14.jar has the following format:

jdbc:oracle:thin:[user/password]@[host][:port]:SID

jdbc:oracle:thin:[user/password]@//[host][:port]/SID

  user - The login user name defined in the Oracle server.

  password - The password for the login user.

  host - The host name where Oracle server is running.

         Default is 127.0.0.1 - the IP address of localhost.

  port - The port number where Oracle is listening for connection.

         Default is 1521.

  SID  - System ID of the Oracle server database instance.

By default, Oracle Database 10g Express Edition creates one database instance called XE.

Ex:       try {

                                      Connection con=null;

                                      Class.forName("oracle.jdbc.driver.OracleDriver");

                                      con=DriverManager.getConnection(

                                        "jdbc:oracle:thin:@localhost:1521:XE",

                                        "system",

                                        "password");

                                      Statement s=con.createStatement();

                                      s.execute("insert into emp values('attr1')");

                                      s.close();

                                      con.close();

                   } catch(Exception e){e.printStackTrace();}