2. Open a terminal window and use the following command to determine your DVD device:

$ drutil status
Vendor Product Rev
HL-DT-ST DVDRW GSA-S10N AP09

Type: DVD-ROM Name: /dev/disk1


3. Umount the disk with the following command:

$ diskutil unmountDisk /dev/disk1
Disk /dev/disk1 unmounted


4. Use the dd command to create the ISO file:

$ dd if=/dev/disk1 of=file.iso bs=2048


5. Mount the ISO file to verify that it is readable:

$ hdid file.iso


If you’re looking for a utility to allow you to read ISO files on the Windows platform, try Virtual Clone drive from SlySoft.

rsync -ave ssh --delete myhost.example.com:Documents/ Documents/

The −−delete option ensures that any files or directories that no longer exist on the source are also removed from the destination.

On the server side:
First, we need to ensure the vncserver is actually running. SSH to the server or logon at the console as your regular user account. No root privileges are necessary. Once logged in, just type vncserver. You should see something like this:

[bm@app3 ~]$ vncserver 

You will require a password to access your desktops.

Password:
Verify:
xauth:  creating new authority file /home/bm/.Xauthority

New 'app3.domain.com:1 (app3)' desktop is app3.domain.com:1

Creating default startup script /home/bm/.vnc/xstartup
Starting applications specified in /home/bm/.vnc/xstartup
Log file is /home/bm/.vnc/app3.domain.com:1.log

If this is the first time you’ve run the application, you’ll be prompted to set a password for vnc clients, and it will also create default X Windows session configurations. You probably don’t want to use the defaults, so kill the current vnc server instance and edit those files.

[bm@app3 ~] vncserver -kill :1
Killing Xvnc process ID 29181
[bm@app3 ~]$ cat .vnc/xstartup
#!/bin/sh

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
twm &


Uncomment the lines in bold and then start vncserver again.

On the client side:
Open up a shell window (on your Linux/Mac OS X client) and configure your tunnel to forward the server’s VNC port (e.g., 5901/tcp) to your localhost. Please note that the VNC port range starts at 5900 and increases by screen number. For example, if you are trying to connect to myserver.domain.com:23 (i.e., screen 23), you will need to reference port 5923/tcp. For the purpose of this article, we’re assuming there is only one VNC instance running on the server, and the screen number is :1.

client:~ user$ ssh remoteserver.domain.com -L 5901/127.0.0.1/5901

Now, use your VNC client to connect to localhost:1 or localhost port:5901.

There are several good VNC clients for Mac OS X and Windows, and most distributions of Linux already have VNC installed.

Free VNC Applications:

• TightVNC(multi-platform)
• Chicken of the VNC(Mac OS X)

lookupd -flushcache

On a windows 2000/XP/2003 system you would type the following from a command prompt.

ipconfig /flushdns

defaults write com.apple.dashboard devmode YES

Log out of your session, and then login again to restart the Dashboard process. That’s it! You now have the capability of displaying widgets on your regular desktop. How do you get them there?

• Hit F12 to bring up your Dashboard
• Find the widget you want on your desktop
• While dragging the widget across the Dashboard, hit F12 to return to your regular desktop and drop the widget
• To remove the widget from your desktop, just reverse the process. Hit F12 as you’re dragging the widget, and then drop it back on your Dashboard screen

Alternatively, you can just use the Yahoo Widget Engine (works on Windows as well!).