Thank you writing such an informative book on firewalling. We have
benefitted from this book tremendously and opened our eyes to some of the
issues of network security.
We are using the Red Hat Linux 6.0 and followed your book closely.
Especially in Chapter 7 where we tried to install the firewall script that
you have provided in the text.
On p203 where you suggested that we create an 'S09firewall' file in
/etc/rc.d/rc3.d (we used /etc/rc.d/rc5.d since our run level was 5, which
you mentioned on p309). When we rebooted, it failed during the startup
time (with great big RED lettering instead of the GREEN lettering for other
services) and a note:
execvp: No such file or directory
Perhaps you can share your experience on this at your support web site or
e-mail me directly then?
Thanks for your help.