This page lists the errors in the book and the CD-ROM. I apologize that a few errors were not caught despite many passes through the text and programs and scripts were uploaded from tested code.
In the second line, the wrong Appendix is listed. It should be E.1.
A line was omitted from the book, as described here. (Note that the CD-ROM is correct.) In the fifth line from the bottom of page 455, that reads
$IPT -A FORWARD -p udp --dport $i -j DROPl
insert the following above it.
$IPT -A OUTPUT -p udp --dport $i -j DROPl
On the third and sixteenth lines, each of which start
$IPT -A OUTPUT -i
please change -i to -o.
These files' updated cryptographic signature files are issue.sig and issue.net.sig. Shift-clicking on the links will download the files.
To check the signature for, say, issue, after downloading issue and issue.sig, issue the command
gpg --verify issue.sig issue
The GNU Privacy Guard program should respond with
gpg: Signature made Fri Jan 03 16:58:16 2003 EST using DSA key ID E3A1C540
gpg: Good signature from "Bob Toxen (New standard email address for book)
It is important for the DSA key ID to be
E3A1C540
and the text to include
Good signature from "Bob Toxen (New standard email address for book) <book@verysecurelinux.com>"
The date may vary.
These files' updated cryptographic signatures files are
rc.fwsoho.sig.
and
rc.fwdmz.sig.
Shift-clicking on these links will download the files.
rc.fwsoho and rc.fwdmz files
On the CD-ROM, under the book/iptables directory, these files have
minor errors.
Thanks to Erik Terwiel for pointing this out.
To correct, shift click on the links
rc.fwsoho
and
rc.fwdmz.
Maintained by
book@verysecurelinux.com