The purpose of this note is to explain in detail how OpenNMS performs SNMP data collection. Knowing how this works is key to troubleshooting SNMP data collection problems. The discovery process in OpenNMS is really simple. We send out a "ping" in order to see if an IP address exists and is responsive (and which IP addresses we try are set in the discovery-configuration.xml file). When that happens, a NewSuspect event is generated. It is also possible to use the send-event.

With OpenNMS 0.9, the concept of a "primary" SNMP interface was added to the database. By default the interface with the lowest IP address is designated as the primary interface for SNMP queries. Also by default, performance data is only collected for that interface. If you would like to collect data on all of the interfaces on the node, you need to make a change to the /opt/OpenNMS/etc/datacollection-config. See similar questions...

By default, net-snmp is configured only to allow a really small amount of information to be accessed by the default community name of "public". The easiest way to change this is to find a line like: view systemview included .1.3.6.1.2.1.1 See similar questions...

While this is not meant to be a tutorial on RRD, here is some information on how the data is stored in OpenNMS. When a collection is first started, RRD reserves disk space to store all of the values it plans to collect. This has the benefit that the RRD file will never grow beyond its initial size, but the downside is that if you are collecting over a long period of time, this file will be large. lt;step>300</step> <rra>RRA:AVERAGE:0.5:1:8928</rra> <rra>RRA:AVERAGE:0. See similar questions...

Knoppix 5 supports write access for NTFS partitions using libntfs and fuse. While preliminary results show generally good stability and a low likelihood of data corruption on the NTFS partition, these libraries are still beta and there is risk of data loss and disk corruption (back up your data first). Knoppix (and the Linux kernel) can read NTFS partitions just fine, the danger is only present when attempting to write to it. See similar questions...

Simple Network Management Protocol (SNMP) is a family of protocols that provide a means for monitoring and controlling networked devices. Computer vendors have built into some network devices, including some UPS models, network management capabilities so that you can query their status remotely, as devices are usually referred to as "smart" devices. See similar questions...

edit] Q: "Can you please add a password feature?" A: The core developers ? which includes those with long-term experience with well-known names/brands in computer security ? believe that each app should do one thing well, and leave other concerns to other apps. Especially "tricky", critical concerns like data security. In this case, GnuCash would do a poor job of being a good security application. See similar questions...

A : Using modern scientific testing equipment the acupuncture channels and individual points can be traced on the body as they are the pathways on the body that have the least resistance to electrical or chi flow. Technological advancements have made it possible to validate the existence and location of the channels and points. Using sophisticated PET Scan technology, it has been shown that certain specific locations in the brain are energized and activated through the use of acupuncture. See similar questions...

A:The init scripts are located in /etc/init.d and are symlinked to in the /etc/rcX.d directorys in a sysV like fashion. See similar questions...

If there is no response within 30 days, a 2nd request letter is sent by certified mail. A copy of this letter also goes to the PI/Dept. and ORD. If there is still no response and/or if the sponsor neglects to pay, a "Final Request" letter is mailed to the sponsor. This letter informs the sponsor that the amount due will be sent to the State Central Collection Unit if payment is not received in 30 days. See similar questions...

Yes, Klir protects customer data through a combination of secure communications, authentication, and data center security solutions. Klir Analytics is secured with a combination of internal policies and network security measures. Internal policies that safeguard the hosted application include the following: strict rights management, limited physical access, high availability, database backups and archives. See similar questions...

Yes. Solar electricity systems that are tied into public utility systems sell power back to the utility grid in the summer, while still producing smaller amounts of power on cloudy days. In the summer, when electricity use is highest, solar systems generate the most power, thereby offsetting some of the increased demand. The result is less dependence on non-renewable energy and more clean power from the sun. See similar questions...

Recognizing that the value of data often depends on their timeliness, data sharing should occur in a timely fashion. NIH expects the timely release and sharing of data to be no later than the acceptance for publication of the main findings from the final dataset. This time point will be influenced by the nature of the data collected. Data from small studies can be analyzed and submitted for publication relatively quickly. See similar questions...

Currently 79 percent of the electricity used in Corvallis is derived from the combustion of coal. On a per capita basis, Corvallis has the dirtiest power in the nation. See similar questions...

explicit request to do a garbage collection does a full collection (both young generation and tenured generation). A full collection is always done with the application paused for the duration of the collection. See similar questions...

In general, Neuros product version comes in the form of 'a.bb-c.dd', where 'a.bb' denotes the hardware version and 'c.dd' indicates the firmware version. For historical reason, Neuros I & II have separate firmware and hardware versions. This wiki is user updated and the information here cannot be considered official Neuros communication See similar questions...

The MSXML parser is used to handle a Quest-object. Any editing is done to it in memory. There's a lot of form-controls (like input areas) to XML conversion, and vice versa. If you save or chose the preview mode, the HTML files are saved to disk. Preview mode is just an IE browser control, the rest is handled by the client-side VBS routines. See similar questions...

edit] Q: Is the Postgres DB / SQL backend supported? A: A postgres/SQL backend was introduced in the 1.6 code line, but it never supported any features introduced since the 1.6 release, especially the Business features and Scheduled Transactions. Even so, modulo those features, the postgres backend should still basically function, even in the 2.2 release. However, since the 2. See similar questions...

There is none; all passwords are locked/scrambled by default; you set one yourself for those situations which call for it. You can set the root password by going to Knoppix Menu->Root Shell and typing "passwd", then entering a root password. In Version 5.0.1 you can also go to Knoppix Menu -> Configure -> Set password for root. There are several sections you can read dealing with this subject in KNOPPIX/README_Security.txt. See similar questions...

First of all, you have to have Knoppix installed on your hard drive. You won't be able to execute the following proceedure if you are running it from the CD. I beleve if you used a USB to hold the changes you make on a system couldnt you use that to watch a dvd? I imagine that would be more useable. Add the following lines to your /etc/apt/sources.list: deb http://www.videolan.org/pub/videolan/debian $(ARCH)/ deb-src http://www.videolan. See similar questions...