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Search results for How To Monitor A System With Sysstat On Centos 4.3

Debian

Monitoring Network Latency With Smokeping (Debian Etch)

Post date: September 15, 2007, 00:09 Category: Network Views: 7196 Comments
Tutorial quote: This guide shows how to install and configure Smokeping on Debian Etch to monitor network latency. From the Smokeping web site: "SmokePing is a deluxe latency measurement tool. It can measure, store and display latency, latency distribution and packet loss. SmokePing uses RRDtool to maintain a longterm data-store and to draw pretty graphs, giving up to the minute information on the state of each network connection."
Debian

How to set up VoIP calls in your Cybercafé with Xorcom Rapid, Asterisk PBX and *starShop-OSS

Post date: September 18, 2006, 14:09 Category: Software Views: 4475 Comments
Tutorial quote: In this howto i will guide you step-by-step on how to successfully setup long distance calls service in your Cybercafé, using open source software. The main element is *starShop-OSS, an open source application designed to monitor and bill, in real time, calls made via Asterisk PBX. This service is commonly called : callshop or taxiphone.
Fedora

Automatic And Up-To-Date Fedora 9 Installations With Kickstart And Novi

Post date: October 30, 2008, 12:10 Category: Miscellaneous Views: 4062 Comments
Tutorial quote: Kickstart allows you to do automatic Fedora/RedHat/CentOS installations. This is useful and time-saving if you have to deploy tens or hundreds of similar systems (e.g. workstations). Kickstart reads the installation settings from a Kickstart configuration file. The problem with Kickstart is that it usually uses the distribution's packages from the time the distribution was released, i.e., it does not consider updates which means you would have to update each system manually after the Kickstart installation. This guide explains how you can do up-to-date Kickstart installations with the help of a tool called novi.
Debian

How To Set Up A Loadbalanced High-Availability Apache Cluster

Post date: April 28, 2006, 06:04 Category: Network Views: 4949 Comments
Tutorial quote: This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
Ubuntu

How To Set Up A Loadbalanced High-Availability Apache Cluster On Ubuntu 8.04 LTS

Post date: June 12, 2008, 11:06 Category: Installing Views: 3909 Comments
Tutorial quote: This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
Ubuntu

Monitoring Servers and Clients using Munin in Ubuntu

Post date: February 13, 2007, 18:02 Category: Network Views: 4771 Comments
Tutorial quote: Munin” means “memory”.Munin the tool surveys all your computers and remembers what it saw. It presents all the
information in in graphs through a web interface. Its mphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort. Using Munin you can easily
monitor the performance of your computers, networks, SANs, and quite possibly applications as well. It makes it easy to determine “what’s different today” when a performance problem crops up. It makes it easy to see how you’re doing
capacity wise on all limited resources.
Mandriva

Server Monitoring With munin And monit On Mandriva 2008.0

Post date: February 26, 2008, 11:02 Category: Installing Views: 4017 Comments
Tutorial quote: In this article I will describe how you can monitor your Mandriva 2008.0 server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphic that lets you recognize current or upcoming problems, and a watchdog that ensures the availability of the monitored services.
Mandriva

Server Monitoring With munin And monit On Mandriva 2010.0

Post date: April 11, 2010, 12:04 Category: Installing Views: 5242 Comments
Tutorial quote: In this article I will describe how you can monitor your Mandriva 2010.0 server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems, and a watchdog that ensures the availability of the monitored services.
Linux

Building a Virtual Cluster with Xen

Post date: September 28, 2006, 04:09 Category: Emulation Views: 8662 Comments
Tutorial quote: It is a common practice to have development and test servers for each production server, so that you can experiment with changes without the fear of breaking anything important, but this is usually not feasible with clusters. So how do you try that new version of your favorite program before committing it to the production cluster? A cheap and convenient possibility is to build a virtual cluster.

Thanks to the Xen virtual machine monitor, you can create a number of virtual machines, all running simultaneously in your computer, install different operating systems in them, or just different configurations, and connect them via (virtual) network cards. Xen is a terrific tool for building virtual Beowulf clusters. It can prove useful when learning or teaching about clusters or for testing new features/software without the fear of causing major damage to an existing cluster.
CentOS

Settings up a SFTP Only Chroot Jail

Post date: December 13, 2007, 22:12 Category: Security Views: 8672 Comments
Tutorial quote: This tutorial describes how to set up a chroot jail (SFTP only) to allow your users to ONLY use sftp (no ssh/bash/…), and keep them stuck inside their own home directory. This tutorial is known to work on many other distributions as well as CentOS.
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