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From: Michael Hancock <michaelh@cet.co.jp>
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: UCD-SNMP
Date: Wed, 26 Jun 1996 09:55:03 +0900
Organization: CET
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For those who asked here's the readme...
-mh
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DISCLAIMER
The Author, the University of California, the University of
California at Davis, and the Electrical Engineering department at
the University of California at Davis assume no responsibility for
damage or loss of system performance as a direct or indirect result
of the use of this software. This software is provided "as is"
without express or implied warranty.
INTRO
This package contains a port and modified code of the CMU 2.1.2.1
snmp agent. It has been modified to allow extensibility quickly
and easily. It is far from the best and most configurable systems;
but hey: its free.
A while back, we wanted to monitor problems on our network and hosts
that were easily noticeable. Therefore, we needed an extensible
agent. We started with the agent distributed with Ultrix 4.2, but
had serious problems with it (there is now way to distinguish
between get/getnext requests causing the agent to loop forever).
Then we decided to look into the HP extensible agent. Looked
perfect. Then we saw the price. Too much for an educational
facility (it was ~$1000/host but is now closer to $200/host).
We opted for the third route: modifying the CMU code to do the
things we wanted. This gives the added benefit of being free and
would be identical on all the architectures we wished to support.
This package is a result of that effort.
We use this agent here to monitor known system problems before they
take the machine over. The agent can be easily configured to
monitor the number of a given process running, run external scripts
to check and report functional status. Examples: mountd(s) under
Ultrix 4.3 which tend to fork themselves crazy and eventually fill
up the process table; On our hp700s, "amd" sometimes stops working,
HP VUE hangs and fails to start X, etc.
We use HP-OpenView to poll the enclosed agent every half an hour
looking for these problems. The problems are then logged in a file,
which the programmers monitor using xlbiff. Additionally, we use
the perl/tk 'snmpcheck' script found in the local subdirectory to
automatically check and fix these problems. I don't know how useful
this package will be to the outside world, but I thought I'd let you
decide that for yourself.
SUPPORTED ARCHITECTURES
I'm using it on these architectures:
hppa1.1-hp-hpux9.05
-- I develop here... Its the architecture best supported in
this package. It is the only architecture that supports
swap space checks.
hppa1.1-hp-hpux10.01
- known to work under 10.10
mips-dec-ultrix4.3
- known to work under 4.2, 4.4
sparc-sun-solaris2.4
- known to work under 2.3, 2.5
sparc-sun-sunos4.1.4
- known to work under 4.1.2, 4.1.3
alpha-dec-osf3.2
*-netbsd1.1
- arp table mib disabled
Please let me know if you compile it on other OS versions and it
works for you so I can add them to the above list.
AVAILABILITY
ftp.ece.ucdavis.edu:/pub/snmp/ucd-snmp.README
ftp.ece.ucdavis.edu:/pub/snmp/ucd-snmp.tar.gz
This file will always point to the latest revision. If you see
newer revisions in the directory marked with a -A[1-9] or -B[1-9]
please note that these are alpha ports of the next release. Beware.
INSTALLATION
See the INSTALL file distributed with this package.
COPYING AND COPYRIGHTS
See the COPYING file distributed with this package.
CODE UPDATE ANNOUNCEMENTS / MAILING LIST(s)
See the NEWS file and the ChangeLog file for details on what changes
between releases.
I hate broadcasting announce messages to other mailing lists and
newsgroups, so there is a mailing list setup to handle release
announcements. Anytime I put new software out for ftp, I'll mail it
to ucd-snmp-announce@ece.ucdavis.edu. To subscribe/unsubscribe
yourself to/from this list, mail a note to
ucd-snmp-announce-request@ece.ucdavis.edu with a subject line of
'subscribe' or 'unsubscribe'. I will post new announcements on a
very infrequent basis to the other channels (the snmp mailing lists
and comp.protocols.snmp), but only for major code revisions and not
for bug-fix patches or small feature upgrades.
The above mailing list is not a general purpose discussion list. A
separate list has been created for that purpose. To subscribe to
it, mail a note to ucd-snmp-request@ece.ucdavis.edu with a
subject line of 'subscribe' or 'unsubscribe'. To use it, mail to
ucd-snmp@ece.ucdavis.edu.
EXTENSIBILITY
The agent that comes with this package is extensible through use of
shell scripts and other methods. See the configuration manual pages
and the EXAMPLE.conf file for details.
Note: This agent uses its own API for extensibility. The IETF's
agentx working group is working on developing a common API for
subagent extensibility. See them for details.
EXAMPLE USAGE
See the 'EXAMPLE.conf' file in this directory (you must build the
package for this file to be generated). Do NOT look at the
EXAMPLE.conf.def file. It will only confuse you.
CONFIGURATION
See man/snmpd.conf.5 and the EXAMPLE.conf file mentioned above.
SNMPv1 vs. SNMPv2
Typically, I doubt you want people to look at most of your mib tree.
By defining GLOBALSECURITY in the config.h file, you can restrict
access to any of the mibs implemented in this package to the
security type you define it to. I define mine to SNMPV2AUTH, or
authenticated requests only. I then define the SECURITYEXCEPTIONS
to allow .100 requests, since HP Openview can only use SNMPv1
protocols. The CMU code does not have hooks for privacy protocols,
so nothing is mentioned about it here. If you don't understand
anything I have said here, change GLOBALSECURITY to SNMPV1 and you
shouldn't have problems.
THANKS
The following people have contributed various patches and
improvements. To them I owe my deepest thanks (and you do too!):
Dan A. Dickey <ddickey@transition.com>
Dave Shield <D.T.Shield@csc.liv.ac.uk>
Giovanni S. Marzot <gmarzot@baynetworks.com>
Niels Baggesen <recnba@mediator.uni-c.dk>
Mike Perik <mikep@crt.com>
Sanjai Narain <narain@thumper.bellcore.com>
francus@metsny.delphi.com
I've probably forgotten people on this list. Let me know if you've
contributed code and I've left you out.
CLOSING
Have fun,
I love patches. Send some to me!
Also, I'm interested if anyone actually uses/likes/hates/whatever this
package... Mail me a note and let me know what you think of it!
_____
/ ___ \
Wes Hardaker / / \/
Department of Electrical and Computer Engineering \--/ /\
University of California at Davis __________________ \/ /--\
Davis CA 95616 / Recycle \ /\___/ /
(hardaker@ece.ucdavis.edu) / It's not too late! \ \_____/
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