COMMAND

    ucd-snmp

SYSTEMS AFFECTED

    Linux RedHat 5.2

PROBLEM

    Rui  Ribeiro  found  following.   He  found  a feature in the vacm
    ucd-snmp v3.52 when setting up  snmp services under Linux RH  5.2.
    By  default,  v3.5.2  always  delivers  the  system  mib  subtree.
    Request is made with the public community name.  All the  machines
    capable of connecting to your snmp port, will have access to  that
    information.  Quite contrary  to what the documentation  says, you
    can't  change  this  behaviour  with  the  vacm configuration file
    (/etc/snmp/snmpd.conf).  You can try, but it's ignored.

SOLUTION

    ucd-snmp v3.5.2 has indeed the described problem.  v3.6 no  longer
    suffers from it, but the  RH smnpd default directory is  no longer
    recognized  under  it  (RH  joys).   The  best  way  to  check for
    configuration errors  is invoking  snmpd with  the -L  -D options.
    Fixes:

        - upgrade to 3.6, since it also has a better support for  snmp
          traps
        - swapping to another Linux dristribution(?)