SNMP community in host configuration

[Andreas Ericsson]

Patrick Proy wrote:
> Hi,
> 
> Did anybody test the patch ? 
> 

Like I told you before you went along hacking up this patch, it 
addresses a very limited usergroup. I believe most networks have at the 
most two or three snmp communities/username-password-pairs.

> 
> Patrick
> 
> 
>>Envoyé : mardi 21 décembre 2004 16:04
>>À : 'nagios-devel'
>>Objet : [Nagios-devel] RE: SNMP community in host configuration
>>
>>Hi,
>>
>>I updated my patch. Works with today's CVS : "patch -p0 < 
>>patch_nag_snmp_2004.12.21.patch" :
>>
>>- added "snmp_community" in host/template definition, 
>>accessed by $SNMPCOMMUNITY$ macro.
>>
>>- Changed the "hostuser" macro in "hostmacro" : 
>>	- in host/template definition : "hostmacro<n>   SomeData"
>>	- In services : "$HOSTMACRO<n>$"
>>
>>- In nagios.cfg, the option is now named "host_snmp_login", 
>>same syntax. 
>>
>>As usual, feedbacks are welcome !
>>
>>Patrick
>>nagios AT proy.org
>> 
>>
>>>How to patch : 
>>> - it work with the CVS version of 19 Dec 2004
>>> - in the "nagios-cvs" directory : "patch -p0 < 
>>
>>patch_nag_snmp.patch"
>>
>>>Note : only works with template based config files.
>>>
>>>I tested it on Linux only for now, but as nothing is platform 
>>>specific, it should be OK.
>>>Here are the modified files (if a new CVS version is out) : 
>>>- common/objects.c base/config.c base/nagios.c base/utils.c 
>>>include/common.h include/objects.h include/nagios.h.in 
>>>xdata/xodtemplate.c xdata/xodtemplate.h
>>>
>>>
>>>What it does :
>>>
>>>1) SNMP for each host
>>>
>>>You can put snmp information in three ways : 
>>>- In the host definition :
>>>	snmp_version <int>    # stores snmp version
>>>	snmp_login <string>   # stores snmp login (for v3)
>>>	snmp_pass  <string>   # stores snmp password for v3 or 
>>>community for
>>>v1
>>>None of them are compulsory of course
>>>- In the host template (will then only overwrite what's not in host
>>>definition)
>>>	Same syntax
>>>
>>>- In the nagios.cfg file : 
>>>	snmp_login=1,<comunity>,<network>/<mask>
>>>	snmp_login=3,<login>,<pass>,<network>/<mask>
>>>	
>>>	This is generic snmp login for networks : it will be 
>>
>>put in the host
>>
>>
>>>snmp info if the host hasn't got any, and if it's address 
>>
>>matches the 
>>
>>>network/mask definition. Mask with best precision will be chosen 
>>>first.
>>>	Example : 
>>>	snmp_login=1,private,10.100.0.0/16
>>>	snmp_login=3,login1,pass1,10.100.0.3/32
>>>
>>>	This means : 
>>>	- on the 10.100.0.0/16 network : v1, private
>>>	- for the 10.100.0.3 host : v3 : login1, pass1
>>>	
>>>	10.100.3.45 : will get v1, private
>>>	10.100.0.3 : will get v3, login1, pass1
>>>
>>>- The information is available as macro : 
>>>	- $SNMPVERSION$
>>>	- $SNMPLOGIN$
>>>	- $SNMPPASS$
>>>	
>>>
>>>2) user variables for host
>>>	
>>>- Each host can have up to 10 user variables (you can put more or 
>>>less, just by modifying a number in the code), specified in its 
>>>definition :
>>>	hostuser<n>	<string>
>>>	
>>>	example : 
>>>	hostuser3	SomeInformation
>>>
>>>- Of course, host templates can have hostuser<n> too. (will 
>>
>>be put in 
>>
>>>host definition is the host doesn't have the hostuser<n> already).
>>>
>>>- Available as macro : 
>>>	$HOSTUSER<n>$
>>>
>>>TODO : 
>>>- I forgot snmp v2c : maybe 2 will be okay but it would be 
>>
>>cleaner to 
>>
>>>have "2c".
>>>- Hostuser are from 0->9..., maybe it would be cleaner to put 1->10.
>>>
>>>
>>>Please test it and give me feedback !
>>>
>>>
>>>Patrick
>>>nagios AT proy.org
>>>
>>
> 
> 
> 
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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