Best of Technical Support
I run Linux Red Hat 6.0 and Netscape 4.7, and I am struggling to install Real Player. I successfully installed (using RPM) Real Player 5.0 (rvplayer) and verified using GNOME; RPM shows the program is installed correctly. In the Netscape options, I set up MIME for file RA and RAM to use rvplayer. When I click on an Internet site with radio, nothing happens. There is a message on a Linux newsgroup, saying there seems to be a problem with rvplayer 5.0 and the 2.2. —Yossi HaYored, firstname.lastname@example.org
That is correct; you need the beta version of the G2 player. You can get it from proforma.real.com/mario/player/player.html. —Marc Merlin, email@example.com
I had trouble getting rvplayer 5.0 to work on a 2.2.5 kernel myself, but rvplayer 6.0 worked just fine for me. —Scott Maxwell, maxwell@ScottMaxwell.org
I have been trying to install Linux and have had one successful installation using a monitor other than my personal one. When I took it home to my monitor, it gave me a blank screen, and the monitor's on light goes from green to maroon, indicating a problem after it entered its graphical interface. When I try to reinstall Linux Mandrake or Caldera 2.2, it gives me a blank screen when it does its graphical interface or when I try to probe for a video card. I have a Compaq V50 monitor and Creative Labs 4MB video card. When I was able to get a successful installation, I was using a Micron monitor. Could there be a compatibility issue, and will there be a way to get Linux installed at all? This monitor configuration works with Windows just fine. —Andy Kissner, firstname.lastname@example.org
What's apparently happening is that X is trying to drive your monitor too hard. For this reason, graphical installs are not necessarily going to work. At least with Red Hat, you can ask for a text-mode install when you boot the first floppy. Some distributions, like Debian, will install only in text mode, which is fine for you, and others expect to see a VESA-2-compliant video card and a monitor that can accept suitable refresh rates. Your best bet, once a distribution is installed, is to edit XF86Config (usually in /etc/X11 or /etc) and reduce the value of those two parameters:
HorizSync 30-50 VertRefresh 50-70
The values given here may work, but you should really put in the ones specified in your monitor's manual. —Marc Merlin, email@example.com
I actually have several questions.
1. How do I access my Zip drive? I suppose I could try mounting and unmounting everything in /dev, but that seems particularly ungraceful.
2. How do I log out? I can switch to superuser and shut down, but letting my kids and wife be superuser defeats at least one reason for preferring Linux over Windows.
3. I tried to set my default shell to tcsh instead of bash. It doesn't seem to have taken. In particular, my .cshrc file (or .tcshrc) is not read at login. —Tim Allison, firstname.lastname@example.org
1. The answer is very different, depending on whether your Zip is parallel, IDE or SCSI. There are two HOWTOs which you should read: ZIP-Drive and ZIP-Install.
2. In a shell, type logout. In X, you have to find the logout option. It depends on which window manager you are using and whether you use XDM (runlevel 5). When in doubt, CTRL-ALT-BACKSPACE will kill your X session, but that's the sledgehammer approach.
3. To change your shell, you can use chsh or simply edit /etc/passwd and change the last field for root. Make sure that whatever shell you specify exists. To find out which shell you are currently running, try echo $SHELL. If you are indeed running tcsh, try doing an echo in ~/.tcshrc to see if it is run or not, and consult the tcsh man page which explains which files are being run, depending on whether your shell is a login shell or not. —Marc Merlin, email@example.com
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide