[Snort-users] undefined symbol: LibVersion error

David Holder david.holder at ...11827...
Fri Apr 16 11:14:52 EDT 2010

Hi all,

I installed Snort yesterday and configured it based on the guide provided on
the ubuntu forums : http://ubuntuforums.org/showthread.php?t=919472

I'm running ubuntu 9.10 server edition and the latest version of Snort and

I've managed to configure the database, permissions, snort.conf but when I
try and launch snort like so:

snort -c /etc/snort/snort.conf

I get the following:

root at ...2306...:~# snort -c /etc/snort/snort.conf
Running in IDS mode

        --== Initializing Snort ==--
Initializing Output Plugins!
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file "/etc/snort/snort.conf"
PortVar 'HTTP_PORTS' defined :  [ 80 1220 2301 3128 7777 7779 8000 8008 8028
8080 8180 8888 9999 ]
PortVar 'SHELLCODE_PORTS' defined :  [ 0:79 81:65535 ]
PortVar 'ORACLE_PORTS' defined :  [ 1521 ]
   Search-Method = AC-BNFA-Q
Tagged Packet Limit: 256
Loading dynamic engine /usr/local/lib/snort_dynamicengine/libsf_engine.so...
Loading all dynamic detection libs from /usr/local/lib/snort_dynamicrules...
  Loading dynamic detection library
/usr/local/lib/snort_dynamicrules/lib_sfdynamic_example_rule.so... ERROR:
Failed to find LibVersion() function in
/usr/local/lib/snort_dynamicrules/lib_sfdynamic_example_rule.so: undefined
symbol: LibVersion
Fatal Error, Quitting..

Does anyone have any idea how I can resolve this issue?


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