Br0 IP managed by VM - how to set its gateway?

This is br0 config:
/etc/netctl/bridge
Description="Example Bridge connection"
Interface=br0
Connection=bridge
BindsToInterfaces=(internal)
IP=no
Gateway='192.168.7.1'
## Ignore (R)STP and immediately activate the bridge
#SkipForwardingDelay=yes
It receives DHCP IP from a VM, which means that after a host reboot, there is a time gap between br0 is up, and the VM is up and have its IP online (192.168.7.1).
The problem of which I think this is the cause, is that the gateway does not get set up and I have to do it manually after each host reboot with:
ip route add default via 192.168.7.1
I tried adding it to root dcron with
@reboot sleep 90 ; ip route add default via 192.168.7.1
but it doesn't work. Besides, it is an ugly workaround, anyway.

Will the above method work on a set up with a Verizon Modem to a DLink wireless router to a Time Capsule?
I know of no reason why it would not. Whenever there is another router ahead of the Time Capsule, the Time Capsule must be configured in Briddge Mode. My network has 4 routers. The "main" router is setup to handle DHCP and NAT and the other 3 routers are setup in Bridge Mode. No problems.
Weird thing is Air Video set up tells me I have a double NAT
Double NAT occurs when you have two routers on a network both set up to handle DHCP and NAT services. Your Verizon "modem" may be a gateway....a combination modem/router on the same chassis. If that's the case, then every other router on the network must be confgured as a "Bridge".
If you have the "main" router on the network setup to handle DHCP and NAT, in theory, you can have multiple other routers on the network as long as they are all setup in Bridge Mode. In Bridge Mode, DHCP and NAT are turned off, so the other routers simply pass through the network information from the main router. It's by far the easiest way to configure multiple routers without having to go into special DMZ, port mapping, etc type of configurations.

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    So my "Policy" would say, in the above example, redirect traffic from my public IP (205.100.112.50) -> to my web server -> (192.168.0.5).
    THEN you have to modify this policy with what AdTran calls "Traffic Selectors". You've said, OK, you can get in, but WHAT can get in?
    The "Traffic Selector" is written to say: "Permit" "TCP" traffic from 205.100.112.50 only through Port 80. (That's the port that web traffic goes over. If you wanted a secure website, you'd add another traffic selector that opens port 443, for example.)
    I'll tell you I'm no genius when it comes to this. I called AdTran and had them configure my router for me. I told them what I wanted done, they remoted into the router and configured it. But then I could go to the web interface and see what they did and then added rules later on when I wanted, for example, to get access to the network via Apple Remote Desktop or VPN into the network on my iPad.
    I'd bet that your router has a maintenance agreement that includes this service and if it doesn't it should have.
    I did find that I still had issues when I tried to set this up originally and it had to do with the ORDER of the policies. I can’t remember exactly what the issue was, but, effectively one of the policies highjacked traffic before the policy that I wanted got triggered. Simply moving them around in the list fixed that issue. So if you have this set up but still can’t access the site, check the order of your rules.
    I don’t know if that helps or not, but I try to think about this stuff conceptually and then get someone to help me with the details. I work with this stuff so infrequently that I forgot how I did something 6 months or a year ago. I’m in the process of creating a wiki for the school which documents all this stuff, but that’s a major undertaking.
    Cheers,
    John

  • Once and for all: How to set up and use SSH

    Yes, I know ssh has been discussed on and off, but never in its entirety; and yes, there are step by step instructions on the www, but at one point or another they skip a crucial instruction that would be necessary for unix-dummies (e.g. how to save and close the nano-editor in Terminal). So, please pardon my question:
    There are several points I'd like to ask for ssh-connecting two macs on a local network:
    1) In terminal-file-"connect to server" you can ask for an ssh connection to be set up. For this to work, do I need to create private and public keys first? If so, how? Please point me to a reliable and step-by-step instruction site.
    There are some free ssh-utilities out there, but their documentation is just not helpful enough for a UNIX-dummy.
    2) Apparently I managed to connect via ssh once (from the terminal, see point 1) to a local server (allowing remote connection set to ON at the server). But then, when I connected to that server from the client's finder and tried to get into my user account on that server it told me that no secure connection could be established. What's wrong here? Do I have to continue working from within the terminal to use this connection? That would be difficult for an average MacUser.
    3) What is the security advantage of an SSH connection on a local wireless network (Airport Base Station) over WPA2, if at all?
    4) And how to set up an ssh-connection over the internet cloud to safely build a remote control/desktop sharing connection, e.g., a friend's Mac when she has a problem?
    Thanks for your consideration.

    First I'm not sure what your goals are.
    1) In terminal-file-"connect to server" you can ask for an ssh connection to be set up. For this to work, do I need to create private and public keys first?
    If you have ssh keys, you can do this without passwords. If you have not exchanged keys with the remote system, you will be asked for the password of the user you are attempting to login as.
    If so, how? Please point me to a reliable and step-by-step instruction site. There are some free ssh-utilities out there, but their documentation is just not helpful enough for a UNIX-dummy.
    Log into the remote system. This could be via ssh.
    On the remote system, run the following command to generate an ssh key for that remote system:
    ssh-keygen -t rsa
    Generating public/private rsa key pair.
    Enter file in which to save the key (/Users/username/.ssh/id_rsa): <<take default>>
    Created directory '/Users/username/.ssh'.
    Enter passphrase (empty for no passphrase): <<enter nothing>>
    Enter same passphrase again: <<enter nothing again>>
    Your identification has been saved in /Users/username/.ssh/id_rsa.
    Your public key has been saved in /Users/username/.ssh/id_rsa.pub.
    The key fingerprint is:
    aa:bb:cc:dd:ee:ff:gg:hh:ii:jj:kk:ll:mm:nn:oo:pp [email protected]
    This will generate an ssh key for the remote system. This could be any system that support ssh, such as a Unix system, or another Mac.
    Copy the id_rsa.pub file from the remote system to your Mac. When I say "your Mac" I mean the one that you want to make the ssh connection from. The id_rsa.pub is found in the remote system's ~username/.ssh/ directory.
    Append the copied id_rsa.pub to your Mac's ~himbear/.ssh/authorized_keys2 file
    cat id_rsa.pub >>~himbear/.ssh/authorized_keys2
    Now when you ssh to that specific remote system, it will NOT ask for a password. The first time you ssh to any system, ssh will ask if the system is really the system you thing it is. But once you say "yes", it will not ask that question again.
    Repeat for every remote system you wish to log into using an ssh key.
    2) Apparently I managed to connect via ssh once (from the terminal, see point 1) to a local server (allowing remote connection set to ON at the server). But then, when I connected to that server from the client's finder and tried to get into my user account on that server it told me that no secure connection could be established. What's wrong here? Do I have to continue working from within the terminal to use this connection? That would be difficult for an average MacUser.
    MacUser. A flash from the past, as in the MacUser magazine.
    ssh is not used by default when you make connections. If you want an ssh connection, you have to establish it intentionally.
    ssh can be used to pre-establish a tunnel (or tunnels) that other services can use. Once an ssh tunnel is establish, connections to local host's tunnel port will be connected to the specified remote port. For example:
    ssh -L 5901:localhost:5900 [email protected]
    will establish a tunnel that VNC can use. The VNC client would connect to localhost display 1 or port 5901.
    ssh allows multiple -L tunnels to be specified on the ssh command line.
    3) What is the security advantage of an SSH connection on a local wireless network (Airport Base Station) over WPA2, if at all?
    Inside you home. Not much. Unless of course you do not trust the other members of your family. That is to say, others having your WPA2 password, and are thus on the inside, and can sniff you packets.
    4) And how to set up an ssh-connection over the internet cloud to safely build a remote control/desktop sharing connection, e.g., a friend's Mac when she has a problem?
    If you are using the Mac OS X Leopard built-in *Screen Sharing* and you are connecting to another Mac's built-in Leopard System Preferences -> Sharing -> Remote Management (Tiger's Apple Remote Desktop), then in the *Screen Sharing* preferences, is an "Encrypt all network data" option.
    If you wish to set this option in advance, you can launch *Screen Sharing* by double clicking on System -> Library -> CoreServices -> Screen Sharing.app
    You can *Screen Sharing* connections over the net using iChat. This is one of the easiest ways to take control of their system. Of course they need to cooperate. I use a Free AOL Instant Messager (AIM) account for my iChat connections. And as a side benefit you can text, audio chat and/or video chat with the person at the other end.
    If you are NOT using the build-in Mac OS X *Screen Sharing* and/or you are NOT using the build-in remote Mac OS X remote management server, then this is a situation where an ssh tunnel would be a very good idea.
    However, setting up an ssh tunnel between 2 systems across the internet gets complex.
    In this case you might want to consider using something like LogMeIn.com which will deal with all those nasty home routers without needing to to do nasty router configurations, and it will be a secure connection. LogMeIn.com will not be as fast as a *Screen Sharing* connection or a VNC connection, but it will be secure and easy to establish. Again, this is only if you can not to Mac to Mac *Screen Sharing* using built-in Mac OS X remote desktop.
    Now if you want to roll your own ssh tunnels for VNC, then I'm just going to outline the things you need to do.
    If the remote system is behind a home router, you need to configure that remote home router to "Port Forward" port 22 on the Internet side to port 22 on the target Mac. Bonus points if the internet side using a high number port to discourge net bots from knocking on your door. Use the ssh -p 12345 option to connect to the high numbered port that is forwarded to port 22 of the destination Mac.
    On the remote Mac you need to run a VNC server. If this is a Mac, then Leopard System Preferences -> Sharing -> Remote Management (Tiger's Apple Remote Desktop). If it is not a Mac, then for Windows, TightVNC, UltraVNC, RealVNC are possible options. Linux has a built-in vncserver, or you can install x11vnc which has the advantage of displaying the desktop screen.
    Once you can access the remote system, you use an ssh command like the following:
    ssh -p 12345 -L 5901:localhost:5900 remote.system.address
    You can get the remote system's address by having the remote system surf over to http://whatismyip.com. Then they can tell you the IP address.
    If you are going to be doing this a lot, you can get a free no-ip.com or dyndns.org dynamic DNS name for the remote system, and the remote system can run a dynamic DNS client (available from no-ip.com or dyndns.org) which will keep the dynamic DNS name updated as the remote person's ISP change's their IP address.
    Finally, now that you have an ssh tunnel for VNC traffic, you have your VNC client connect to
    Address: localhost
    Port: 5901
    Depending on your VNC client you may need to specify Display 1 instead of Port 5901. Or if you do not get a Display or Port option you specify localhost:5901

  • How to set up a great Photoshop machine

    How to set up a great Photoshop machine
    From the blog of John Nack, [former?*] Photoshop Principal Program Manager
    At Photoshop World this week, performance testing lead Adam Jerugim
    presented a performance guide with hardware recommendations and
    information about the CS5 performance preferences.  I’ve put his notes
    in this post’s extended entry.
    http://blogs.adobe.com/jnack/2010/09/how-to-set-up-a-great-photoshop-machine.html#more-271 2
    Operating Systems: Mac OS 10.6.4 and Windows 7 64-bit
    CPU: Intel Core i7/Xeon or AMD Phenom II/Opteron with 4 cores. More than 4 cores gives diminishing returns.
    RAM: Enough to keep Efficiency readout at  100%. If Efficiency is low (<95%), adding RAM will provide biggest  benefit. 4GB will cover most digital photography uses. 8GB leaves room  for other apps and fits huge documents in RAM.
    Video Card: Any modern card with at least 512MB VRAM; 1GB if doing heavy 3D work.
    Disk: Use a separate disk for Photoshop  scratch. If you spend a lot of time opening / saving large data  files, another separate disk for data files will speed that up. Faster  disks are better. RAID0 is faster. SSD is faster yet. RAID0 of SSDs is  fastest but super expensive. If you have plenty of RAM (meaning your  Efficiency readout is 95% or more), separate/faster disks for scratch  provide minimal benefit. If Efficiency readout is low, a separate SSD  for Photoshop scratch will be a big win. SSD boot volume will speed  booting and app launch, but not Photoshop operations.
    Memory Usage: this should be no higher than  70% on systems running 32bit Photoshop or with less than 4GB of total  physical RAM. On systems with 8GB or more, use 70% if you plan on  running other applications at the same time as PS, or higher (up to 90%)  if you only plan on using PS on your system.
    Efficiency %: can be found in the document window drop-down options. Operations fit in RAM when this 95% or greater.
    History & Cache: if you work with small  documents with lots of layers, start with the Tall and Thin  button (which will set cache levels = 2, tile size = 128K/132K). If you  work with large documents with few layers, try the Big and Flat button  (which will set cache levels = 6, tile size = 1024K/1028K). Using more  history states uses more scratch disk space.  More history states may  also use more RAM, particularly when running actions or scripts on  large documents. If you see Efficiency drop below 95%, especially after  running actions, try reducing history states or adding RAM.
    Scratch Disks: a separate drive for Photoshop  scratch disk will avoid slowdowns from Photoshop and the OS trying  to access the disk at the same time. If your Efficiency number often  drops below 95%, the gain can be large. Faster disks are better. A RAID0  array is faster, an SSD faster still. If using a RAID or SSD, try  setting the Tile Size to 1024K – AMD CPUs prefer 132K / 1028K sizes, but  128K and especially 1024K are more efficient for RAID and SSD use  regardless of CPU type.
    GPU Settings: you can change GPU settings by  clicking on the Advanced Settings button. For more more modern  video cards there will be three options: Basic, Normal, Advanced.  Changes to this setting will only take effect after PS restart, and  would be worth experimenting with if painting performance is sluggish.
    Posted by John Nack          at 7:10 AM on September 03, 2010
    * I understand Mr. Nack may have moved to a different area of Adobe management?
    Wo Tai Lao Le
    我太老了

    Nice of you to point it out here as I at least don’t follow Mr.Nash’s blog regularly.

  • How to set up set which NIC card to use for multicast?..

              I just downloaded Rolling Patch 1 for WLS6.0SP2.
              While reading the README file it says
              " ISSUE 42518: Provided a way to set which NIC card to use for multicast traffic
              Can anyone tell me how to set this?. on my WebApplication server it has two NIC
              cards and I want to use the NICcard which is being used to talk to internal network
              for multicast messages.
              One more thing,
              Can anyone one tell how to search for bugs (ISSUES) in weblogic. I am looking
              place where I enter ISSUE number and should get the detailed description of bug/issue
              etc..
              Thanks for helping,
              Nilesh
              

              Thanks Kumar, I'll try this.
              Does this -Dweblogic.interfaceAddress used only for multicast. Or this is also
              used to talk to AdminServer?.
              The other problem I am facing is when I restart the AdminServer in recovery mode
              it's not finding my WebApp servers, because my webapp servers are on public network
              and my admin (management) server is on private network.
              please look at http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.management&item=1217&utag=
              , for more details about my problem.
              Thanks,
              Nilesh
              Kumar Allamraju <[email protected]> wrote:
              ><!doctype html public "-//w3c//dtd html 4.0 transitional//en">
              ><html>
              >You should be able to do it via console in 6.1
              ><br>Not sure if it was added in 6.0
              ><p>For 6.0 you can set this via command line
              ><br>java -Dweblogic.interfaceAddress=<addr>
              ><p>You need 6.0 SP2 RP1
              ><p>--
              ><br>Kumar
              ><p>Nilesh Shah wrote:
              ><blockquote TYPE=CITE>I just downloaded Rolling Patch 1 for WLS6.0SP2.
              ><br>While reading the README file it says
              ><br>" ISSUE 42518: Provided a way to set which NIC card to use for multicast
              >traffic
              ><br>"..
              ><p>Can anyone tell me how to set this?. on my WebApplication server it
              >has two NIC
              ><br>cards and I want to use the NICcard which is being used to talk to
              >internal network
              ><br>for multicast messages.
              ><p>One more thing,
              ><p>Can anyone one tell how to search for bugs (ISSUES) in weblogic. I
              >am
              >looking
              ><br>place where I enter ISSUE number and should get the detailed description
              >of bug/issue
              ><br>etc..
              ><p>Thanks for helping,
              ><p>Nilesh</blockquote>
              ></html>
              >
              

  • How to set a   background for jFrame?

    Hai.i have a code for background image.i.e
    * TextOver.java
    * Created on June 23, 2008, 1:53 PM
    * To change this template, choose Tools | Template Manager
    * and open the template in the editor.
    import java.awt.Dimension;
    import java.awt.Graphics;
    import java.awt.image.BufferedImage;
    import java.io.IOException;
    import java.net.MalformedURLException;
    import java.net.URL;
    import javax.imageio.ImageIO;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.JScrollPane;
    import javax.swing.JTextArea;
    public class TextOver
    private static final String IMAGE_PATH =
    "http://upload.wikimedia.org/wikipedia/commons/b/b5/HMS_Cardiff_%28D108%29_1.jpg";
    private BufferedImage image;
    private JTextArea textarea = new JTextArea(20, 40);
    private JPanel mainPanel = new JPanel()
    @Override
    protected void paintComponent(Graphics g)
    super.paintComponent(g);
    if (image != null)
    g.drawImage(image, 0, 0, this);
    public TextOver()
    URL imageUrl;
    try
    imageUrl = new URL(IMAGE_PATH);
    image = ImageIO.read(imageUrl);
    Dimension imageSize = new Dimension(image.getWidth(), image.getHeight());
    mainPanel.setPreferredSize(imageSize);
    JScrollPane scrollpane = new JScrollPane(textarea);
    textarea.setOpaque(false);
    scrollpane.setOpaque(false);
    scrollpane.getViewport().setOpaque(false);
    mainPanel.add(scrollpane);
    catch (MalformedURLException e)
    e.printStackTrace();
    catch (IOException e)
    e.printStackTrace();
    public JPanel getPanel()
    return mainPanel;
    private static void createAndShowGUI()
    admin_login_code a=new admin_login_code();
    a.setVisible(false);
    JFrame frame = new JFrame("TextAreaOverImage Application");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(new TextOver().getPanel());
    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(false);
    public static void main(String[] args)
    javax.swing.SwingUtilities.invokeLater(new Runnable()
    public void run()
    createAndShowGUI();
    i want to give this backgground to my existing jFrame something like
    import java.sql.*;
    import java.io.*;
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    public class admin_login_code extends javax.swing.JFrame {
    String admin_name;
    String password;
    Connection con;
    Statement stmt;
    ResultSet rs;
    public admin_login_code() {
    initComponents();
    jPasswordField1.addKeyListener(new KeyAdapter() {
    public void keyTyped(KeyEvent e) {
    char c = e.getKeyChar();
    if (!(Character.isDigit(c) ||
    (c == KeyEvent.VK_BACK_SPACE) ||
    (c == KeyEvent.VK_DELETE))) {
    getToolkit().beep();
    e.consume();
    jFormattedTextField1.addKeyListener(new KeyAdapter() {
    public void keyTyped(KeyEvent e) {
    char c = e.getKeyChar();
    if (!(Character.isLetter(c) ||
    (c == KeyEvent.VK_BACK_SPACE) ||
    (c == KeyEvent.VK_DELETE))) {
    getToolkit().beep();
    e.consume();
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
    private void initComponents() {
    jLabel1 = new javax.swing.JLabel();
    jPanel1 = new javax.swing.JPanel();
    jLabel2 = new javax.swing.JLabel();
    jFormattedTextField1 = new javax.swing.JFormattedTextField();
    jLabel4 = new javax.swing.JLabel();
    jPasswordField1 = new javax.swing.JPasswordField();
    jPanel2 = new javax.swing.JPanel();
    jButton1 = new javax.swing.JButton();
    jButton3 = new javax.swing.JButton();
    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
    jLabel1.setFont(new java.awt.Font("Tahoma", 1, 36));
    jLabel1.setForeground(new java.awt.Color(255, 0, 0));
    jLabel1.setText("ADMIN LOGIN");
    jLabel2.setFont(new java.awt.Font("Tahoma", 1, 24));
    jLabel2.setText("Admin Name");
    jFormattedTextField1.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
    jFormattedTextField1ActionPerformed(evt);
    jLabel4.setFont(new java.awt.Font("Tahoma", 1, 24));
    jLabel4.setText("Password");
    jPasswordField1.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
    jPasswordField1ActionPerformed(evt);
    org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
    jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jPanel1Layout.createSequentialGroup()
    .add(39, 39, 39)
    .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jLabel4)
    .add(jLabel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 161, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
    .add(43, 43, 43)
    .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jPasswordField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 190, Short.MAX_VALUE)
    .add(jFormattedTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 190, Short.MAX_VALUE))
    .addContainerGap())
    jPanel1Layout.setVerticalGroup(
    jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jPanel1Layout.createSequentialGroup()
    .add(47, 47, 47)
    .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
    .add(jLabel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 34, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(jFormattedTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
    .add(60, 60, 60)
    .add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jLabel4)
    .add(jPasswordField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
    .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    jButton1.setText("Login");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
    jButton1ActionPerformed(evt);
    jButton3.setText("Exit");
    jButton3.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
    jButton3ActionPerformed(evt);
    org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
    jPanel2.setLayout(jPanel2Layout);
    jPanel2Layout.setHorizontalGroup(
    jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel2Layout.createSequentialGroup()
    .add(38, 38, 38)
    .add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 93, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 110, Short.MAX_VALUE)
    .add(jButton3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 93, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(55, 55, 55))
    jPanel2Layout.setVerticalGroup(
    jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(jPanel2Layout.createSequentialGroup()
    .add(38, 38, 38)
    .add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
    .add(jButton3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 32, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 32, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
    .addContainerGap(30, Short.MAX_VALUE))
    org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
    layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(layout.createSequentialGroup()
    .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(layout.createSequentialGroup()
    .add(574, 574, 574)
    .add(jLabel1))
    .add(layout.createSequentialGroup()
    .add(459, 459, 459)
    .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
    .add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))))
    .addContainerGap(521, Short.MAX_VALUE))
    layout.setVerticalGroup(
    layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
    .add(layout.createSequentialGroup()
    .add(149, 149, 149)
    .add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 66, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(43, 43, 43)
    .add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .add(42, 42, 42)
    .add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
    .addContainerGap(250, Short.MAX_VALUE))
    pack();
    }// </editor-fold>
    private void jPasswordField1ActionPerformed(java.awt.event.ActionEvent evt) {
    private void jFormattedTextField1ActionPerformed(java.awt.event.ActionEvent evt) {                                                    
    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                        
    Object src=evt.getSource();
    if(src==jButton3)
    dispose();
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                        
    Object src=evt.getSource();
    if(src==jButton1)
    admin_name=jFormattedTextField1.getText();
    password=jPasswordField1.getText();
    try
    Class.forName("oracle.jdbc.driver.OracleDriver");
    con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcle","scott","root");
    stmt=con.createStatement();
    rs=stmt.executeQuery("select admin_name,password from admin_registration where admin_name='chandana' and password='8989' ");
    while(rs.next())
    if(admin_name.equals(rs.getString(1))&&password.equals(rs.getString(2)))
    admin_registration a=new admin_registration();
    a.setVisible(true);
    dispose();
    else
    JOptionPane.showMessageDialog(null,"Please enter admin name & password ");
    catch(ClassNotFoundException e)
    e.printStackTrace();
    catch(SQLException e)
    e.printStackTrace();
    public static void main(String args[]) {
    java.awt.EventQueue.invokeLater(new Runnable() {
    public void run() {
    admin_login_code a=new admin_login_code();
    a.setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton3;
    private javax.swing.JFormattedTextField jFormattedTextField1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPasswordField jPasswordField1;
    // End of variables declaration
    Can any one can help me how to set a background for jFrame?
    Thank you in advance.
    Edited by: forums.com on Jul 14, 2008 1:40 AM

    90% of the code you posted is not relevant to your question.
    If you want further help post a Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the problem.
    And don't forget to use code tags when posting code.

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