Hi @ all,

 I ran into some issues with my snort install on Debain 5r2. And I thought, it might be helpful to post the solutions I found:

1.  While ./configure... I got mysql.h not found

You need to install the package libmysqlclient-dev

2. Loading dynamic detection library /usr/local/lib/snort_dynamicrules/bad-traffic.so... ERROR: Failed to load /usr/local/lib/snort_dynamicrules/bad-traffic.so: /usr/local/lib/snort_dynamicrules/bad-traffic.so: cannot open shared object file: No such file or directory
Fatal Error, Quitting..

This one can be fixed by copying all files from <snort_src_folder>/so_rules/precompiled/Debian-Lenny/i386/2.8.4/ to /usr/local/lib/snort_dynamicrules/

3. When trying to start snort, I also got the following: ERROR: ERROR /etc/snort/rules/exploit.rules(23): Couldn't resolve hostname HOME_NET
Fatal Error, Quitting..

 That was tricky one, since it wasn't that easy to localize the evil's root. In snort.conf you have to change the line:

var EXTERNAL_NET !HOME_NET

to

var EXTERNAL_NET !$HOME_NET

Because the Dollar-sign is missing there.

Hope this helps a few unlucky as I was ;-)