CS Phd Linux Network
Frequently Asked Questions



Problem with your Dell PC?

  • Read the basic troubleshooting guidelines.
  • Contact Dell Support at 1-800-822-8965. Please have your Service Tag number and Express Service Code (both are on the Dell Tag found on the side or front of your PC.)
  • You can find out information about your PC at support.dell.com (as well the Express Service Code.)
  • You can also go to premiersupport.dell.com and request on-site support from Dell if your PC is still under warranty. Note that you will need to register with them by providing some basic information.
  • Write an email to comment@cims.nyu.edu

How do I install a new version of Linux on my PC?

  1. Log-on to katahdin.cims.nyu.edu
  2. Copy the boot image /linux/current/bootnet.img onto a floppy, using 'dd' or otherwise.
  3. Register the PC's ethernet address with our DHCP server.
  4. Boot the PC from the floppy, and enter the following at the 'boot:' prompt:
    linux ks=nfs:katahdin.cims.nyu.edu:/linux/current/ks.cfg
  5. The PC will then install itself and reboot.

How do I launch an xterm from a remote server on my machine?

  • To enable X11 packet forwarding, specify the -X flag to ssh.
  • To test X windows system packet forwarding run '/usr/openwin/bin/xlogo'. If the xlogo is displayed on your local machines xwindows display, then it is working.

What is my hostname / MAC / IP address?

  • Use hostname command to get your hostname.
  • Use ifconfig command to get your ip address. Look under the eth0 group: HWaddr is your MAC address, inet addr is your IP address. (Note: ifconfig may not be in your path, in that case try /sbin/ifconfig)

How do I play AVIs, MPEGs, MOVs, or other types of video?

  • Try using gmplayer or xine, if neither of those can play the type of codec, then try xanim. Due to the proprietary nature of codecs, some codecs may not be supported.

How do I get pictures from my USB camera?

  • You should be able to access a USB camera by plugging it into a USB port and then using the Photo Tool Application ("Applications->Graphics->Photo Tool" from your desktop's panel).

How do I tell my file browser (nautilus) to associate file types with a different application?

  • If you are using Nautilus as your File Browser (this is default for GNOME), then right click (left click for you southpaws that swap your buttons) on a file inside of your File Browser, then select properties, this should bring up a new window with file information for that file. Now, select the "Open With" tab. Here you can select an application to associate with files of the same type.
  • Nautilus can be gotten to from "Applications->File Browser" in GNOME, or by running nautilus from the command line.

How do I mount my cdrom?

  • If your computer doesn't automount a cd once you've inserted it, you can mount it by starting your file browser ("Applications->File Browser" from your desktop's panel), then selecting the "Computer" icon inside of the file browser, and finally double clicking the cd device's icon.
  • Run mount /media/cdrecorder or mount /media/cdrom whichever your device is called.

What about security? Is my system secure?

  • Our linux systems are able to stay secure through strong security features such as SELinux, a restrictive set of protocols and firewall rules, as well as nightly updates with one of our servers to keep your programs up to date with the latest security updates and features.

What about security? Is my system secure?

  • Our linux systems are able to stay secure through strong security features such as SELinux, a restrictive set of protocols and firewall rules, as well as nightly updates with one of our servers to keep your programs up to date with the latest security updates and features.

Looking for common software?

Looking for more information?