Tux magazine has a comparison of su and sudo as ways to administer a linux system. Many people are under the mistaken impression that you just login as root (gui or otherwise) and that’s the only way to do it. In fact, I’ve used su primarily. Although in some circumstance sudo has it’s benefits.
Category: Tech Support
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A tun of trouble….
Sorry, VERY bad pun but I couldn’t resist. I mentioned that I was having tun difficulties that kept me from playing around with anything fancy networking-wise with qemu. For starters let me see if I can explain what tun is. Tun is a method of creating a point-to-point “imaginary” network connection between a program and an operating system. For instance, Qemu sets up a device called /dev/tun0 in the host operating system. This /dev/tun0 can communicate with the kernel and then the outside world. /dev/tun0 behaves just like any other network interface to the viewers on the outside (even getting it’s own ip address that is network reachable.)
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Linux: Using Mandrake (Mandriva’s) URPMI tool
As background for this, I’ve used Mandrake Linux (now Mandriva) for my main desktop since around 8.2 I can’t remember quite how long ago that’s been, but around 3 to 4 years I think. The why is something best saved for another writeup. Early on I was frustrated by installing software. I read everyone give instructions on installing from source. That went along the following lines….
from a command prompt type the following….
tar -xzvf yournewsoftware.gz
cd yournewsoftware
./configure
make
su
enteryourrootpassword
make install
and your done!Well…. no it isn’t always that simple
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Simple Backup
This is going to explain some ideas for a really simple way to make your own backup routine. (more…)
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How do I find my IP address
This is one that can be handy from time to time, trying to find your ip address. If you’re on a lan there aren’t too many ways to find your public ip within the operating systems software. However, under Windows if you go to, Start, Run and then type cmd and press enter you’ll get a command prompt from which you can type ipconfig and see the ip address for each network interface. One (more…)