January 2005
Intermediate to advanced
544 pages
23h 44m
English
Content preview from Linux Server Security, Second Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
This is the Title of the Book, eMatter Edition
Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.
OS Hardening Principles
|
67
Overall, yast2’s Online Update functionality is simple and fast. The only error I’ve
encountered running it on my two SUSE servers was the result of invoking yast2
from an xterm as an unprivileged user: yast2 claimed that it couldn’t find the update
list on ftp.suse.com, which wasn’t exactly true. The real problem was that yast2
couldn’t write that file locally where it needed to because it was running with my
non-root privileges.
Invoking yast2 from a window-manager menu (in any window manager that susewm
configures) obviates this problem: you will be prompted for the root password if you
aren’t running X as root. Running X as root, of course, is another workaround, but
not one I recommend due to the overall insecurity of X. A better approach is to open
a terminal window, su to root by using the command
su -, and then run the com-
mand yast2.Bysu-ing with the “-” (hyphen), you’ll set all your environment vari-
ables to root’s default values, including
DISPLAY.
How to be notified of and obtain security updates: Debian
As is typical of Debian GNU/Linux, updating Debian packages is less flashy yet sim-
pler than with most other distributions. The process consists mainly of two com-
mands (actually, one command, apt-get, invoked twice but with different options): ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.