Monit is a small, easy to configure monitoring system for *nix systems that will attempt to restart services that have failed. Grab the tarball, extract, configure, make, and make install: [usr-1@srv-1 ~]$ tar -xzf mon*4.7*.gz [usr-1@srv-1 ~]$ cd mon*7 [usr-1@srv-1 monit-4.7]$ ./configure checking for gcc… gcc checking for C compiler default output file name… a.out […]
Monitoring and Automatic Recovery of Services with Monit
Monitoring Java VM Performance With JConsole
J2SE 5.0 includes monitoring. For more details on management of Java-based systems, see this article. The JDK 5.0 includes a tool called JConsole that will provide performance information. In this article we will use JConsole to monitor a Geronimo server. The first step is to call the jar file for the app you want to […]
Logging Performance Monitor Counters to SQL Server – Part 1
There are 4 parts to this article: Part 1 – Part 2 – Part 3 – Part 4 On Windows Server 2003, Perfmon counters can be logged directly to a SQL database. Let’s do that. Create a database on your SQL Server. We called the database pmon: We’ll create a device for the database with […]
Installing SNMP via RPMs on CentOS 4
SNMP is the primary protocol for monitoring networking equipment; however, due to security and performance considerations, it was often a bad choice for servers. SNMP v 3 now has security improvements that make this a possibility for servers. For more on this, see RFC 3414. We have used Big Brother and Big Sister in the […]
Logging Performance Monitor Counters to SQL Server – Part 2
There are 4 parts to this article: Part 1 – Part 2 – Part 3 – Part 4 Use Windows NT authentication: Do not dynamically determine the port. Uncheck and make sure port 1433 is used: Change the default database to pmon: The rest of the defaults are OK: Click finish, and the summary screen […]
Setting up SNMPv3 Users
[Note: for a Windows version of these instructions, see this article] SNMP version 3 has the capability of using authentication. It can be configured so that you need a user name and password before you can request information from a particular agent. For binary folks, make sure you have the net-snmp-devel package. We used yum […]
Logging Performance Monitor Counters to SQL Server – Part 3
There are 4 parts to this article: Part 1 – Part 2 – Part 3 – Part 4 Click Test Data Source, and if all is happy, a window showing the results of the ODBC connectivity test will pop up: Another summary of the ODBC connection: Let’s use our perfmon database. In performance monitor, create […]
Installing SNMP on Windows Server 2003 Using Net-SNMP
Net-SNMP is an open source SNMP project that is released under a BSD license. Installing SNMP will allow you to further Monitor your Servers or Network devices via a Centralized software or management console as well as monitoring bandwidth usage and utilization. To install on Windows Server, grab the .exe from here. Simply run the […]
Logging Performance Monitor Counters to SQL Server – Part 4
There are 4 parts to this article: Part 1 – Part 2 – Part 3 – Part 4 After you close out the settings, the counter log should be started. If not, then start it: Add the counters from the database by clicking on the log icon from System Monitor and selecting the database via […]
Configuring SNMPv3 Security On Windows Server 2003
In this article we set up SNMP using the Net-SNMP package. We showed how to set up user security for GNU/Linux on our Centos 4 box in this article. The procedure is a little different for Windows, because the net-snmp-config command is not available. The userid and passphrase need to be in the snmpd.conf file: […]
Lua Monitoring Script
Here is a Lua script we put together that measures the latency of a web host, the time to resolve the host, and the time to retrieve a page: — time to resolve host, time to ping host, time to get host/page print (“\”page name\”,\”host latency ms\”,\”dns resolve ms\”,\”page receive ms\””) — fromCSV from http://www.lua.org/pil/20.4.html […]
Live Graph of Apache Processes – Part 1 – Introduction
There are 3 parts to this article: Part 1 – Part 2 – Part 3 One benchmark that we are interested in while monitoring Apache on GNU/Linux is the number of httpd processes running. Here is an example graph of the number of httpd processes running that is created by the scripts in this article: […]
Installing Rsyslog With a MySQL and Loganalyzer
Ahhh… how to keep track of all of those logs. You could go fabulous and use Splunk (or one of splunks alternatives), but if you want some free and simple analysis with not a lot of extra load, rsyslog dumping into a database with Loganalyzer is a pretty decent option. For an introduction to rsyslog, […]
Installing SNMP on Windows Server 2003 Using Net-SNMP
Installing SNMP on Windows Server 2003 Using Net-SNMP
Configuring SNMPv3 Security On Windows Server 2003
In this article we set up SNMP using the Net-SNMP package. We showed how to set up user security for GNU/Linux on our Centos 4 box in this article. The procedure is a little different for Windows, because the net-snmp-config command is not available. The userid and passphrase need to be in the snmpd.conf file: […]
