Can't open shared library 'db_audit_mysql.so'

I use DB Audit Expert to connect mysql 5.1.33 on 32 bit Red Hat Enterprise Linux ES release 4 (Nahant Update 5)

The error log is:

090609 17:02:50 [ERROR] Can't open shared library 'db_audit_mysql.so' (errno: 0 /usr/local/mysql-5.1.33-linux-i686-glibc23/lib/plugin/db_audit_mysql.so: cannot open shared object file: No such file or directo)
090609 17:02:50 [ERROR] Can't open shared library 'db_audit_mysql.so' (errno: 0 /usr/local/mysql-5.1.33-linux-i686-glibc23/lib/plugin/db_audit_mysql.so: cannot open shared object file: No such file or directo)
090609 17:02:50 [ERROR] Can't open shared library 'db_audit_sendmail.so' (errno: 0 /usr/local/mysql-5.1.33-linux-i686-glibc23/lib/plugin/db_audit_sendmail.so: cannot open shared object file: No such file or dire)
090609 17:02:50 [ERROR] Can't open shared library 'db_audit_sendmail.so' (errno: 0 /usr/local/mysql-5.1.33-linux-i686-glibc23/lib/plugin/db_audit_sendmail.so: cannot open shared object file: No such file or dire)
090609 17:02:50 [Note] Event Scheduler: Loaded 0 events

echo $LD_LIBRARY_PATH
/usr/local/mysql/lib/mysql:/usr/local/mysql/lib/mysql

# cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/opt/dell/srvadmin/dataeng/bin
/opt/dell/srvadmin/hapi/bin
/opt/dell/srvadmin/oma/bin
/opt/dell/srvadmin/omsa/bin
/opt/dell/srvadmin/shared/bin
/opt/dell/srvadmin/sm
/opt/dell/srvadmin/sm/dellvl
/usr/local/mysql/lib
/usr/local/mysql/lib/mysql

I copied db*.so to /lib, /usr/local/msyql/lib, /usr/local/mysql/lib/plugin, I still got the above error,

Can somebody point out the problem here?
Thanks

The error message indicates that MySQL server is unable to find or load this file (or one of the dependencies)
If you copy it to /usr/lib, MySQL should be able to find it there. I assume it has permissions to read from that directory.

Also, you can check dependencies using ldd command and verify you got the required files. For ldd command syntax please see here http://linux.die.net/man/1/ldd

How do I fix GLIBCXX_3.4.5 NOT FOUND ERROR, thanks,

[root@atla-mss-test1 ~]# ldd /usr/lib/db_audit_mysql.so
/usr/lib/db_audit_mysql.so: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.5' not found (required by /usr/lib/db_audit_mysql.so)
librt.so.1 => /lib/tls/librt.so.1 (0x00638000)
libelf.so.1 => /usr/lib/libelf.so.1 (0x00554000)
libdl.so.2 => /lib/libdl.so.2 (0x00178000)
libpthread.so.0 => /lib/tls/libpthread.so.0 (0x005a0000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x003fc000)
libm.so.6 => /lib/tls/libm.so.6 (0x00aac000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00111000)
libc.so.6 => /lib/tls/libc.so.6 (0x0064c000)
/lib/ld-linux.so.2 (0x0079d000)
[root@atla-mss-test1 ~]# ldd /usr/lib/db_audit_sendmail.so
libesmtp.so.5 => not found
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00259000)
libm.so.6 => /lib/tls/libm.so.6 (0x00415000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00333000)
libc.so.6 => /lib/tls/libc.so.6 (0x00111000)
/lib/ld-linux.so.2 (0x0079d000)

Please check http://ronaldbradford.com/blog/solving-the-glibcxx_344-glibcxx_345glibcxx_346-error-2006-02-03/