Most of the scalar objects in the 'system' group can be configured via the snmpd.conf file in this way:
sysLocation STRING
sysContact STRING
sysName STRING
set the system location, system contact or system name (sysLocation.0, sysContact.0 and sysName.0) for the agent respectively. Ordinarily these objects are writable via suitably authorized SNMP SET requests. However, specifying one of these directives makes the corresponding object read-only, and attempts to SET it will result in a notWritable error response.
sysServices NUMBER
sets the value of the sysServices.0 object. For a host system, a good value is 72 (application + end-to-end layers). If this directive is not specified, then no value will be reported for the sysServices.0 object.
sysDescr STRING
sysObjectID OID
sets the system description or object ID for the agent. Although these MIB objects are not SNMP-writable, these directives can be used by a network administrator to configure suitable values for them.