+----- On Fri, 18 Dec 1998 10:19:55 -0100, serguei chabanov writes: | | Does anybody know where to find texts on file permissions on unix/linux | (on the internet)? On the basic level it's all clear, but after a | certain point, like background processes, databases, etc. I get confused | with how it all works. There is nothing more than the basic level, well not much more anyway. Background processes are owned by someone and they have the same rights as it that person ran that program in the foreground. Databases are different and often (always?) have their own protection mechanism. One thing that can be confusing is that you can change identity when you run a program. A lot of the ppp programs are like this, if you are a member of the dialout group then you can run them but the programs have all of the power of root when they run. A slightly different case is programs that need to check passwords on systems with shadow, these programs act as if you were a member of shadow which can read /etc/shadow. These types of programs are known as setuid and setgid programs respectively. /Michael - To get out of this list, please send email to majordomo@suse.com with this text in its body: unsubscribe suse-linux-e Check out the SuSE-FAQ at <A HREF="http://www.suse.com/Support/Doku/FAQ/"><A HREF="http://www.suse.com/Support/Doku/FAQ/</A">http://www.suse.com/Support/Doku/FAQ/</A</A>> and the archiv at <A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html"><A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html</A">http://www.suse.com/Mailinglists/suse-linux-e/index.html</A</A>>