Dell iDRAC6 User Manual page 260

"Log In Retry Restriction (IP Blocking) Properties" lists the user-defined
parameters.
Table 15-6. Log In Retry Restriction (IP Blocking) Properties
Property
cfgRacTuneIpBlkEnable
cfgRacTuneIpBlkFailCount
cfgRacTuneIpBlkFailWindow The time frame in seconds during which the failure
cfgRacTuneIpBlkPenaltyTime Defines the time span in seconds that login
Enabling IP Blocking
The following example prevents a client IP address from establishing a session
for five minutes if that client has failed five login attempts in a one-minute
period of time.
racadm config -g cfgRacTuning -o
cfgRacTuneIpRangeEnable 1
racadm config -g cfgRacTuning -o
cfgRacTuneIpBlkFailCount 5
racadm config -g cfgRacTuning -o
cfgRacTuneIpBlkFailWindow 60
racadm config -g cfgRacTuning -o
cfgRacTuneIpBlkPenaltyTime 300
260
Using the RACADM Command Line Interface
Definition
Enables the IP blocking feature.
When consecutive failures
(cfgRacTuneIpBlkFailCount) from a single
IP address are encountered within a specific amount
of time (cfgRacTuneIpBlkFailWindow), all further
attempts to establish a session from that address are
rejected for a certain time span
(cfgRacTuneIpBlkPenaltyTime).
Sets the number of login failures from an IP address
before the login attempts are rejected.
attempts are counted. When the failures exceed
this limit, they are dropped from the counter.
attempts from an IP address with excessive failures
are rejected.