hw to limit SysDescr Variable in snmp

Hi All,

The SNMP service enables remote system management.

The SNMP SysDescr variable can be returned from a remote system. The SNMP SysDescr may contain sensitive information that can be used by an attacker to launch further attacks against the affected system.

Limit the SysDescr variable access.

what need to be modified in a file and in which file to Limit the SysDescr variable access.


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- either disable snmp as a whole, as I described in your other snmp related case,
- modify the community name in /etc/snmpdv3.conf.
The default entry looks like this -
COMMUNITY public    public     noAuthNoPriv         -
Modify both occurrences of the default name "public" to some arbitrary, not easily guessable string, and issue
refresh -s snmpd
Please check beforehand if you have some snmp-based monitoring application running. This  application must be made aware of the change!

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