NAME
Smokeping::probes::SSH - Secure Shell Probe for SmokePing
SYNOPSIS
*** Probes ***
+SSH
binary = /usr/bin/ssh-keyscan # mandatory
forks = 5
offset = 50%
step = 300
timeout = 15
# The following variables can be overridden in each target section
keytype = dsa
pings = 5
port = 5000
# [...]
*** Targets ***
probe = SSH # if this should be the default probe
# [...]
+ mytarget
# probe = SSH # if the default probe is something else
host = my.host
keytype = dsa
pings = 5
port = 5000
DESCRIPTION
Integrates ssh-keyscan as a probe into smokeping. The variable binary
must point to your copy of the ssh-keyscan program. If it is not
installed on your system yet, you should install openssh >= 3.8p1
The Probe asks the given host n-times for it’s public key, where n is
the amount specified in the config File.
As part of the initialization, the probe asks localhost for it’s public
key and tries to parse the output. Make sure you have SSH running on
the localhost as well.
VARIABLES
Supported probe-specific variables:
binary
The location of your ssh-keyscan binary.
Example value: /usr/bin/ssh-keyscan
This setting is mandatory.
forks
Run this many concurrent processes at maximum
Example value: 5
Default value: 5
offset
If you run many probes concurrently you may want to prevent them
from hitting your network all at the same time. Using the probe-
specific offset parameter you can change the point in time when
each probe will be run. Offset is specified in % of total interval,
or alternatively as ’random’, and the offset from the ’General’
section is used if nothing is specified here. Note that this does
NOT influence the rrds itself, it is just a matter of when data
acqusition is initiated. (This variable is only applicable if the
variable ’concurrentprobes’ is set in the ’General’ section.)
Example value: 50%
step
Duration of the base interval that this probe should use, if
different from the one specified in the ’Database’ section. Note
that the step in the RRD files is fixed when they are originally
generated, and if you change the step parameter afterwards, you’ll
have to delete the old RRD files or somehow convert them. (This
variable is only applicable if the variable ’concurrentprobes’ is
set in the ’General’ section.)
Example value: 300
timeout
How long a single ’ping’ takes at maximum
Example value: 15
Default value: 5
Supported target-specific variables:
keytype
Type of key, used in ssh-keyscan -t keytype
Example value: dsa
Default value: rsa
pings
How many pings should be sent to each target, if different from the
global value specified in the Database section. Note that the
number of pings in the RRD files is fixed when they are originally
generated, and if you change this parameter afterwards, you’ll have
to delete the old RRD files or somehow convert them.
Example value: 5
port
Port to use when testing the ssh connection -p port
Example value: 5000
Default value: 22
AUTHORS
Christian Recktenwald <smokeping-contact@citecs.de>