munin-node-configurep - Online in the Cloud

PROGRAM:

NAME

munin-node-configure - View and modify which plugins are enabled.

SYNOPSIS

munin-node-configure [options]

DESCRIPTION

munin-node-configure reports which plugins are enabled on the current node, and suggest
changes to this list.

By default this program shows which plugins are activated on the system.

If you specify "--suggest", it will present a table of plugins that will probably work
(according to the plugins' autoconf command).

If you specify "--snmp", followed by a list of hosts, it will present a table of SNMP
plugins that they support.

If you additionally specify "--shell", shell commands to install those same plugins will
be printed. These can be reviewed or piped directly into a shell to install the plugins.

GENERAL OPTIONS

--help
Show this help page.

--version
Show version information.

--debug
Print debug information on the operations of "munin-node-configure". This can be very
verbose.

All debugging output is printed to STDOUT, and each line is prefixed with '#'. Only
errors are printed to STDERR.

--pidebug
Plugin debug. Sets the environment variable MUNIN_DEBUG to 1 so that plugins may
enable debugging.

--config <file>
Override configuration file [/etc/munin/munin-node.conf]

--servicedir <dir>
Override plugin directory [/etc/munin/plugins/]

--sconfdir <dir>
Override plugin configuration directory [/etc/munin/plugin-conf.d/]

--libdir <dir>
Override plugin library [/usr/share/munin/plugins/]

--exitnoterror
Do not consider plugins that exit non-zero exit-value as error.

--suggest
Suggest plugins that might be added or removed, instead of those that are currently
enabled.

OUTPUT OPTIONS
By default, "munin-node-configure" will print out a table summarising the results.

--shell
Instead of a table, print shell commands to install the new plugin suggestions.

This implies "--suggest", unless "--snmp" was also enabled. By default, it will not
attempt to remove any plugins.

--remove-also
When "--shell" is enabled, also provide commands to remove plugins that are no longer
applicable from the service directory.

PLUGIN SELECTION OPTIONS
--families <family,...>
Override the list of families that will be used (auto, manual, contrib, snmpauto).
Multiple families can be specified as a comma-separated list, by repeating the
"--families" option, or as a combination of the two.

When listing installed plugins, the default families are 'auto', 'manual' and
'contrib'. Only 'auto' plugins are checked for suggestions. SNMP probing is only
performed on 'snmpauto' plugins.

--newer <version>
Only consider plugins added to the Munin core since <version>. This option is useful
when upgrading, since it can prevent plugins that have been manually removed from
being reinstalled. This only applies to plugins in the 'auto' family.

SNMP Options
--snmp <host|cidr,...>
Probe the SNMP agents on the host or CIDR network (e.g. "192.168.1.0/24"), to see what
plugins they support. This may take some time, especially if the many hosts are
specified.

This option can be specified multiple times, or as a comma-separated list, to include
more than one host/CIDR.

--snmpversion <ver>
The SNMP version (1, 2c or 3) to use. ['2c']

--snmpport <port>
The SNMP port to use [161]

SNMP 1/2c authentication
SNMP versions 1 and 2c use a "community string" for authentication. This is a shared
password, sent in plaintext over the network.

--snmpcommunity <string>
The community string for version 1 and 2c agents. ['public'] (If this works your
device is probably very insecure and needs a security checkup).

SNMP 3 authentication
SNMP v3 has three security levels. Lowest is "noAuthNoPriv", which provides neither
authentication nor encryption. If a username and "authpassword" are given it goes up
to "authNoPriv", and the connection is authenticated. If "privpassword" is also given
the security level becomes "authPriv", and the connection is authenticated and
encrypted.

Note: Encryption can slow down slow or heavily loaded network devices. For most uses
"authNoPriv" will be secure enough -- the password is sent over the network encrypted
in any case.

ContextEngineIDs are not (yet) supported.

For further reading on SNMP v3 security models please consult RFC3414 and the
documentation for Net::SNMP.

--snmpusername <name>
Username. There is no default.

--snmpauthpassword <password>
Authentication password. Optional when encryption is also enabled, in which case
defaults to the privacy password ("--snmpprivpassword").

--snmpauthprotocol <protocol>
Authentication protocol. One of 'md5' or 'sha' (HMAC-MD5-96, RFC1321 and
SHA-1/HMAC-SHA-96, NIST FIPS PIB 180, RFC2264). ['md5']

--snmpprivpassword <password>
Privacy password to enable encryption. There is no default. An empty ('') password
is considered as no password and will not enable encryption.

Privacy requires a privprotocol as well as an authprotocol and a authpassword, but all
of these are defaulted (to 'des', 'md5', and the privpassword value, respectively) and
may therefore be left unspecified.

--snmpprivprotocol <protocol>
If the privpassword is set this setting controls what kind of encryption is used to
achieve privacy in the session. Only the very weak 'des' encryption method is
supported officially. ['des']

munin-node-configure also supports '3des' (CBC-3DES-EDE, aka Triple-DES, NIST FIPS
46-3) as specified in IETF draft-reeder-snmpv3-usm-3desede. Whether or not this works
with any particular device, we do not know.

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