Add a mib for cacti !!!

wookii · Post by **wookii** » Wed Mar 30, 2005 6:48 am

I know that i'm not in a good forum, but if anyone can help me et's cool.

I want to add a perfmib.mib in my mibs share (/usr/local/share/snmp/mibs on my Fedora Core 3) for monitoring the snmp oid of my windows 2000 server (user session / files open).

How can i do this ???

Thanks a lot and sorry for the forum mystake

Post by **rony** » Wed Mar 30, 2005 9:12 am

You don't really need to add the mib. Cacti will not use it, typically, you use the OID.

wookii · Post by **wookii** » Thu Mar 31, 2005 2:24 am

Are you sure !!!

Why Cacti use net-snmp ???

wookii · Post by **wookii** » Thu Mar 31, 2005 3:26 am

I want to monitor the number of users connected in my server w2k.
the OID is .1.3.6.1.4.1.311.1.1.3.1.1.8.16 but no data are graph.

Where is the mistake ???

Post by **rony** » Thu Mar 31, 2005 8:39 am

Yes, I'm sure cacti doesn't need and doesn't care about the MIBS.

Can you query that OID with snmpget from that cacti machine? Do you have your SNMP version correct?

wookii · Post by **wookii** » Mon Apr 04, 2005 4:16 am

With GETIF in a windows 2000 workstation, i can tell this oid with a correct answer.

Linux machin can send snmp query to .1.3.6.1.2 but not for a private section of microsoft that begin on .1.3.6.1.4 ... why ???

Post by **rony** » Mon Apr 04, 2005 7:57 am

I would venture that the SNMP agent on the server isn't allowing it. Also, from the Linux box, try to use snmpwalk, that way you see if you are in a tree, and if it's a single value, it will still return it.

wookii · Post by **wookii** » Tue Apr 05, 2005 2:35 am

I can't acces to the private section with snmpwalk.

I have integrate the snmp4w2k agent on a server (http://www.snmp4tpc.com/) W2K, and modify the getif program.
In the doc it explain that perfmib is the mib for microsoft server.
Getif return the true value of private mib section.

I think that i have to modify (perhaps) this mib (perfmib) and add it to the mib of my linux net-snmp, but i don't know how !!!

Post by **TheWitness** » Tue Apr 05, 2005 4:30 am

Wookii,

Please understand that the need for a Linux MIB to be "compiled" (aka added to perfmib) would never be a requirement. From Cacti's perspective, SNMP has two components (there are actually more):

1) Agent Component - That which responds to requests relative to a MIB based OID value (this is where the agents host system need to know how to respond to MIB requests, and in the case of Microsoft, integration into the MIB.BIN file via the MIBCC application)
2) Poller Component - A device which randomly (or not so randomly) uses the network to obtain data from SNMP agent's (aka Cacti). The Pollers host device does not needs the snmp agent unless you are a) Running Windoz (because I don't know why) or b) You want Cacti to graph it's performance.

Therefore, you should not have to "compile" another hosts agent MIB information to the Windoz MIB.BIN file. I think you are just a little confused.

There are MIB files that you place in a MIBS directory on your poller system to allow you to access intellegent, english language, information about each OID (download GetIF to see), but they are not needed for Cacti unless you are creating Templates.

TheWitness

wookii · Post by **wookii** » Tue Apr 05, 2005 4:51 am

OK ... thanks a lot ... so why can't i SNMP request in the Private section of Windows Server with snmpget ???

Sure i'm confused, but i try to resolve me problem, and i all my action fail !!!

So ... give me a method to graph a number of session in my W2K Server with Cacti ... please !!!

Post by **TheWitness** » Tue Apr 05, 2005 4:55 am

Ok,

You need to obtain a copy of the Windows200x resource kit and find documentation on the MIBCC application. Then you can add additional information such as DHCP, DNS, IIS Web Server, and Other (eg. HP Insight Manager) information.

If you are using a Compaq/HP Server, HP actually has an excellent writeup as to how to use their product to integrate other mibs with the MIB.BIN file.

Good Luck,

TheWitness

wookii · Post by **wookii** » Tue Apr 05, 2005 8:51 am

I have resolve the problem !!!

snmp.conf must have this line to can explore all oid in the MIB.
"view systemview included .1"

My snmp.conf just have :
view systemview included .1.3.6.1.2.1.1
view systemview included .1.3.6.1.2.1.25.1.1

Pfff ...

Post by **TheWitness** » Tue Apr 05, 2005 9:40 am

Yes, your agent is net-snmp and not microsoft. Net-snmp makes microsoft look quite weak.

TheWitness

wookii · Post by **wookii** » Tue Apr 05, 2005 10:01 am

Sorry for a mistake !!!

Add a mib for cacti !!!

Add a mib for cacti !!!

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