Essential System Administration, Third Edition
by AEleen Frisch 

This errata page lists errors outstanding in the most recent printing.

If you have technical questions or error reports, you can send them to
booktech@oreilly.com.  Please specify the printing date of your copy.

This page was updated June 20, 2008.

Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem
	?page-number?: reader question or request for clarification



Confirmed errors:



[359] POSIX Access Control Lists
====================================
The statements about Linux systems are no longer always true:
* On some Linux systems, ACL support must be added manually,
  although some current distributions now include it by default.
* Not all filesystem types require the acl mount option.



[360] 
========
The statements about how Linux group ACEs are applied are
not correct. Linux interprets ACLs in the same way that Solaris
and Tru64 do. Thus, the final sentence of the second bullet and
the two following paragraphs (including the example) should
be disregarded.


(589) last line;

"Reject if the hostname in the SMPT"

should be SMTP.


{747}  Missing footnote;
CONFIRMED ERRATA FROM AUTHOR

The missing footnote reference mark goes at the end of the first paragraph on that
page (continued from the previous page).

Footnote text:

For simplicity, we are neglecting the overlap in the incremental backup set that
occurs on successive days. For example, on the third day, 30% is the right figure
only if the files that changed are completely distinct from the ones that changed on
the second day. If we assume the change rate is uniform across all files, the actual
change is 30% - (15%*15%) = 27.75%. Ignoring this effect makes the figure's block
size and the table's numbers come out much prettier.