Configuring Port Sentry

Chances are that you will want to make some changes to the way that PortSentry runs. To change how PortSentry behaves, modify the etc portsentry portsentry.conf file. In that file, you can choose which ports to monitor, the mode in which to monitor, and the responses to take when a scan is detected. The responses can include Blocking access by the remote computer Rerouting messages from the remote computer to a dead host Adding a firewall rule to drop packets from the remote computer The other...

Index

DaemonPortOptions option, sendmail, sendmail options daemons, Common Linux Features, Disabling network services named starting, Starting the named (DNS) daemon network services, Networking Service Daemons, The xinetd super-server, The init.d start-up scripts NIS client configuration, Configuring NIS client daemons NIS client daemon configuration, Configuring NIS client daemons NIS servers, configuration, Configuring NIS server daemons smbd, Checking the status of shared directories Darwin...

Running DOS applications

Because Linux was originally developed on PCs, a variety of tools were developed to help developers and users bridge the gap between Linux and DOS systems. A set of Linux utilities called mtools lets you work with DOS files and directories within Linux. A DOS emulator called dosemu lets you run DOS applications within a DOS environment that is actually running in Linux (much the way a DOS window runs within a Windows operating system). Mtools are mostly DOS commands that have the letter m in...

Using your camera as a storage device

Instead of using gtkam or gphoto to download pictures to Linux, some digital cameras let you treat them like a storage device to manage pictures. By mounting a digital camera as a USB mass storage device, you can view, copy, delete, and move the pictures on your camera as you would files on a hard disk or CD (just at a lower speed). The following is a partial list of digital cameras that can be used as a USB storage device Casio Supported models QV-2400UX, QV-2x00, QV-3x00, QV-4000 and QV-8000....

Watching TV with Xawtv

The Xawtv program lets you display video output, in particular television channels, on your desktop. You can change the channels, adjust volume, and fine-tune your picture. Added features let you grab still images in PBM or JPEG formats, or capture video clips in AVI. The Xawtv will display, by default, any device producing video on the dev video0 device. Therefore, you can use Xawtv to view Webcams as well as receive television channels. The following sections describe how to choose a TV...

Creating an Image Gallery with Konqueror

There's a neat feature in Konqueror that lets you create a quick image gallery. The feature takes a directory of images, creates thumbnails for each one, and generates an HTML (Web) page. The HTML page includes a title you choose, all image thumbnails arranged on a page, and links to the larger images. Here's how you do it 1. Add images you want in your gallery to any folder (for example, home jake images). Make sure they are sized, rotated, and cropped the way you like before beginning. (Try...

Checkng your PPP connection

To debug your PPP connection or simply to better understand how it works, you can run through the steps below. They will help you understand where information is being stored and how tools can be used to track this information. Checking that your modem was detected It is possible that your modem is not supported under Linux. If that is the case, your PPP connection might be failing because the modem was not detected at all. To scan your serial ports to see where your modem might be, type the...

Using a Digital Camera with gtkam and gphoto2

With the gtkam window, you can download and work with images from digital cameras. The gtkam window is front end to gPhoto2, which provides support for dozens of digital cameras in Linux. The gtkam window works by attaching a supported digital camera to a serial or USB port on your computer. You can view thumbnails of the digital images from the camera, view full-size images, and download the ones you select from the camera to your hard disk. Note If you have a camera that saves images to a...