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.
The Web Server
|
323
Logs can reveal sensitive information in the URLs (GET parameters) and in the refer-
rer. An attacker with write access can plant cross-site scripting bugs that would be
triggered by a log analyzer as it processes the URLs.
Logs also grow like crazy and fill up the disk. One of the more common ways to
clobber a web server is to fill up the disk with logfiles. Use logrotate to rotate them
daily, or less often if your server isn’t that busy.
Setup Time: Configuring Apache
Configuring a web server is like configuring an email or DNS server—small changes
can have unforeseen consequences. Most web security problems are caused by con-
figuration errors rather than exploits of the Apache code.
Apache configuration files
I mentioned that Apache’s configuration files could be found under /etc/httpd/conf, /usr/
local/apache/conf, or some less well-lit place. The most prominent file is httpd.conf, but
in 1.3, you will also see access.conf and srm.conf. These are historic remnants from the
original NCSA web server. Only httpd.conf is used for Apache 2.0.
To keep local changes together, you can use a separate file like mystuff.conf and pro-
cess it with the
Include directive:
Include mystuff.conf
In Apache 2.0, you can specify a directory, and all files in it will be processed in
alphabetical ...
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.