Disable or remove SNMPv1/2c authentication and SNMP version-3

Hi;

How can I disable or remove SNMPv1/2c authentication. I would like to use SNMP version 3 authentication.

bash-3.00# uname -a
SunOS SOL9229 5.10 Generic_142910-17 i86pc i386 i86pc
bash-3.00# 

As far as I recall you just need to remove or comment out the rwcommunity and rocommunity entries in snmpd.conf