Marcelo M. Garcia wrote: > '/users/newt2/mgarcia/Downloads/Nagios-3.0.3/net-snmp-5.4.2/perl/SNMP/../blib/arch/auto/NetSNMP/default_store/default_store.so' > for module NetSNMP::default_store: libnetsnmp.so.15: cannot open shared > object file: No such file or directory at You don't have the snmp library installed that the program is looking for. I don't see libnetsnmp.so.15 on either of my CentOS 4.6 or CentOS 5.1 systems so it seems like you may of installed net-snmp from source..in which case you need to point the program at the location of your net-snmp installation so it can find the library. rpm -qa | grep -i net-snmp nate