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Munin Documentation Release 2.0.44
Munin Documentation Release 2.0.44 Stig Sandbeck Mathisen <[email protected]> Dec 20, 2018 Contents 1 Munin installation 3 1.1 Prerequisites.............................................3 1.2 Installing Munin...........................................4 1.3 Initial configuration.........................................7 1.4 Getting help.............................................8 1.5 Upgrading Munin from 1.x to 2.x..................................8 2 The Munin master 9 2.1 Role..................................................9 2.2 Components.............................................9 2.3 Configuration.............................................9 2.4 Other documentation.........................................9 3 The Munin node 13 3.1 Role.................................................. 13 3.2 Configuration............................................. 13 3.3 Other documentation......................................... 13 4 The Munin plugin 15 4.1 Role.................................................. 15 4.2 Other documentation......................................... 15 5 Documenting Munin 21 5.1 Nomenclature............................................ 21 6 Reference 25 6.1 Man pages.............................................. 25 6.2 Other reference material....................................... 40 7 Examples 43 7.1 Apache virtualhost configuration.................................. 43 7.2 lighttpd configuration........................................ 44 7.3 nginx configuration.......................................... 45 7.4 Graph aggregation -
20 Linux System Monitoring Tools Every Sysadmin Should Know by Nixcraft on June 27, 2009 · 315 Comments · Last Updated November 6, 2012
About Forum Howtos & FAQs Low graphics Shell Scripts RSS/Feed nixcraft - insight into linux admin work 20 Linux System Monitoring Tools Every SysAdmin Should Know by nixCraft on June 27, 2009 · 315 comments · Last updated November 6, 2012 Need to monitor Linux server performance? Try these built-in commands and a few add-on tools. Most Linux distributions are equipped with tons of monitoring. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of a performance problem. The commands discussed below are some of the most basic commands when it comes to system analysis and debugging server issues such as: 1. Finding out bottlenecks. 2. Disk (storage) bottlenecks. 3. CPU and memory bottlenecks. 4. Network bottlenecks. #1: top - Process Activity Command The top program provides a dynamic real-time view of a running system i.e. actual process activity. By default, it displays the most CPU-intensive tasks running on the server and updates the list every five seconds. Fig.01: Linux top command Commonly Used Hot Keys The top command provides several useful hot keys: Hot Usage Key t Displays summary information off and on. m Displays memory information off and on. Sorts the display by top consumers of various system resources. Useful for quick identification of performance- A hungry tasks on a system. f Enters an interactive configuration screen for top. Helpful for setting up top for a specific task. o Enables you to interactively select the ordering within top. r Issues renice command. -
Platform RTM User Guide
Platform RTM User Guide Platform RTM Version 2.0 Release date: March 2009 Copyright © 1994-2009 Platform Computing Inc. Although the information in this document has been carefully reviewed, Platform Computing Corporation (“Platform”) does not warrant it to be free of errors or omissions. Platform reserves the right to make corrections, updates, revisions or changes to the information in this document. UNLESS OTHERWISE EXPRESSLY STATED BY PLATFORM, THE PROGRAM DESCRIBED IN THIS DOCUMENT IS PROVIDED “AS IS” AND WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL PLATFORM COMPUTING BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION ANY LOST PROFITS, DATA, OR SAVINGS, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS PROGRAM. We'd like to hear You can help us make this document better by telling us what you think of the content, organization, and usefulness of the information. from you If you find an error, or just want to make a suggestion for improving this document, please address your comments to [email protected]. Your comments should pertain only to Platform documentation. For product support, contact [email protected]. Document This document is protected by copyright and you may not redistribute or translate it into another language, in part or in whole. redistribution and translation Internal You may only redistribute this document internally within your organization (for example, on an intranet) provided that you continue redistribution to check the Platform Web site for updates and update your version of the documentation. -
Observing the Clouds: a Survey and Taxonomy of Cloud Monitoring Jonathan Stuart Ward† and Adam Barker*†
Ward and Barker Journal of Cloud Computing: Advances, Systems and Applications (2014) 3:24 DOI 10.1186/s13677-014-0024-2 RESEARCH Open Access Observing the clouds: a survey and taxonomy of cloud monitoring Jonathan Stuart Ward† and Adam Barker*† Abstract Monitoring is an important aspect of designing and maintaining large-scale systems. Cloud computing presents a unique set of challenges to monitoring including: on-demand infrastructure, unprecedented scalability, rapid elasticity and performance uncertainty. There are a wide range of monitoring tools originating from cluster and high-performance computing, grid computing and enterprise computing, as well as a series of newer bespoke tools, which have been designed exclusively for cloud monitoring. These tools express a number of common elements and designs, which address the demands of cloud monitoring to various degrees. This paper performs an exhaustive survey of contemporary monitoring tools from which we derive a taxonomy, which examines how effectively existing tools and designs meet the challenges of cloud monitoring. We conclude by examining the socio-technical aspects of monitoring, and investigate the engineering challenges and practices behind implementing monitoring strategies for cloud computing. Keywords: Cloud computing; Monitoring Introduction most accepted description of the general properties of Monitoring large-scale distributed systems is challeng- cloud computing comes from the US based National Insti- ing and plays a crucial role in virtually every aspect of tution of Standards and Technology (NIST) and other a software orientated organisation. It requires substantial contributors [3,4]: engineering effort to identify pertinent information and to • obtain, store and process that information in order for it On-demand self service: A consumer is able to to become useful. -
Rrdtool – Perl Module • Net::Snmptrapd(Install It from CPAN by Root) • Netsnmp::Agent(Embedded on Net-Snmp) Requirement – SNMP Agent
Homework 5 DNS、HTTPD、SNMP Requirements One dedicated domain name for yourself Setup DNS server with following records SOA, NS, MX Make them reasonable NS Delegation (with team mates) Dedicate a sub domain to each of your team mates Building a slave server for your team mate And a stub server for another team mate Updates should be synchronized Reverse resolution for your NAT 192.168.x.0/24 for each of team mates Requirements (Cont.) slave a.nctucs.net 140.113.a.a stub 192.168.0.1/24 b.nctucs.net c.nctucs.net 140.113.b.b 140.113.c.c 192.168.0.2/24 192.168.0.3/24 Requirements (Cont.) View Create view.example.csie.net A record: Queries from 192.168.0.0/24: view.example.csie.net A 192.168.0.1 Otherwise, get your normal ip Logging Record all records to /var/log/named.log Do log rotate Note: you will be asked for explaining the what does the log entry means in named.log Requirements (Cont.) SPF/DomainKeys record for your server Add resonable SPF/DomainKeys records Configure your mail system to support these feature SSHFP record for your server Make a reasonable setting Requirements (Cont.) Dynamic DNS update Your DNS should accept the update requests from 140.113.17.225 and your team mates You should know how to update a dns record Management Your DNS server should support TSIG and allow the connection from 140.113.17.225 Your DNS server should only allow the AXFR request from 140.113.17.225 Only allow recursion query from your team mates and 140.113.17.225 Appendix Use ldap as backend database dns/bind9-sdb-ldap http://www.openldap.org/ http://bind9-ldap.bayour.com/ SPF setup wizard http://old.openspf.org/wizard.html DKIMproxy http://dkimproxy.sourceforge.net HTTPD Requirements HTTPD apache, lighttpd, nginx, etc. -
Fireware V12.4 Release Notes (PDF)
Fireware v12.4 Update 2 Release Notes Supported Devices Firebox T10, T15, T30, T35, T50, T55, T70, M200, M270, M300, M370, M400, M440, M470, M500, M570, M670, M4600, M5600 FireboxV, Firebox Cloud, WatchGuard AP Release Date 4 April 2019 Release Notes Revision 10 October 2019 Fireware OS Build 592447 (updated for Fireware v12.4 Update 2 on 26 April 2019 589964 (original Fireware v12.4 release) WatchGuard System Manager Build 592565 (updated for Fireware v12.4 Update 2 on 26 April 2019 591532 (updated for WSM v12.4 Update 1 on 11 April 2019) 59007 (original WSM v12.4 release) WatchGuard AP Firmware AP100, AP102, AP200: 1.2.9.16 AP300: 2.0.0.11 AP125: 8.6.0-644.3 AP120, AP320, AP322, AP325, AP420: 8.6.0-646 Introduction Introduction On 29 April 2019, we release Fireware and WatchGuard System Manager (WSM) v12.4 Update 2 to resolve several issues, mostly related to Firebox management and the HTTPS proxy. See Enhancements and Resolved Issues for more information. On 11 April 2019, we released WatchGuard System Manager (WSM) v12.4 Update 1 to resolve an issue with Policy Manager. See Enhancements and Resolved Issues for more information. Fireware v12.4 is a significant release for Firebox T Series, Firebox M Series, FireboxV, and Firebox Cloud appliances. This release offers major enhancements, feature improvements, and resolves numerous bugs. Some of the key features included in this release are: SD-WAN for VPN and Private Lines This release extends SD-WAN benefits to more than just external WAN connections, enabling organizations to cut back on expensive MPLS connections. -
Escribir El Título De La Tesis
UNIVERSIDAD TÉCNICA DE AMBATO FACULTAD DE INGENIERÍA EN SISTEMAS ELECTRÓNICA E INDUSTRIAL CARRERA DE INGENIERÍA EN SISTEMAS COMPUTACIONALES E INFORMÁTICOS TEMA: “SISTEMA DE ANÁLISIS Y CONTROL DE RED DE DATOS & VoIP PARA EL GOBIERNO PROVINCIAL DE TUNGURAHUA” Trabajo de Graduación. Modalidad: Proyecto de Investigación, presentado previo la obtención del título de Ingeniero en Sistemas Computacionales e Informáticos. SUBLÍNEA DE INVESTIGACIÓN: Redes de Computadoras AUTOR: Franklin Edmundo Escobar Vega TUTOR: Ing. David Omar Guevara Aulestia Mg. Ambato - Ecuador Diciembre, 2015 APROBACIÓN DEL TUTOR En mi calidad de Tutor del Trabajo de Investigación sobre el Tema: “SISTEMA DE ANÁLISIS Y CONTROL DE RED DE DATOS & VoIP PARA EL GOBIERNO PROVINCIAL DE TUNGURAHUA.”, del señor Franklin Edmundo Escobar Vega, estudiante de la Carrera de Ingeniería en Sistemas Computacionales e Informáticos, de la Facultad de Ingeniería en Sistemas, Electrónica e Industrial, de la Universidad Técnica de Ambato, considero que el informe investigativo reúne los requisitos suficientes para que continúe con los trámites y consiguiente aprobación de conformidad con el Art. 16 del Capítulo II, del Reglamento de Graduación para Obtener el Título Terminal de Tercer Nivel de la Universidad Técnica de Ambato. Ambato, Diciembre de 2015 EL TUTOR Ing. David O. Guevara A., Mg. ii AUTORÍA El presente trabajo de investigación titulado: “SISTEMA DE ANÁLISIS Y CONTROL DE RED DE DATOS & VoIP PARA EL GOBIERNO PROVINCIAL DE TUNGURAHUA”. Es absolutamente original, auténtico y personal, en tal virtud, el contenido, efectos legales y académicos que se desprenden del mismo son de exclusiva responsabilidad del autor. Ambato, Diciembre 2015 Franklin Edmundo Escobar Vega CC: 0503474827 iii DERECHOS DE AUTOR Autorizo a la Universidad Técnica de Ambato, para que haga uso de este Trabajo de Titulación como un documento disponible para la lectura, consulta y procesos de investigación. -
Install Cacti (Network Monitoring) on RHEL/Centos 7.X
Install Cacti (Network Monitoring) on RHEL/CentOS 7.x Cacti tool is an open source web based network monitoring and system monitoring graphing solution for IT business. Cacti enables a user to poll services at regular intervals to create graphs on resulting data using RRDtool. Generally, it is used to graph time-series data of metrics such as network bandwidth utilization, CPU load, running processes, disk space etc. Cacti Required Packages: The Cacti required following packages to be installed on your Linux operating systems like RHEL / CentOS . Apache: A Web server to display network graphs created by PHP and RRDTool. MySQL: A Database server to store cacti information. PHP: A script module to create graphs using RRDTool. PHP-SNMP: A PHP extension for SNMP to access data. NET-SNMP: A SNMP (Simple Network Management Protocol) is used to manage network. RRDTool: A database tool to manage and retrieve time series data like CPU load, Network Bandwidth etc. Installing Cacti Required Packages on RHEL/CentOS First, we need to install following dependency packages one-by-one using YUM package manager tool. Here, you need to install and enable EPEL Repository. [root@ns1 ~]# yum install epel-release Install httpd server: # yum -y install httpd httpd-devel Start and enable httpd server # systemctl enable httpd # systemctl start httpd Check status of httpd server to make sure it’s running [root@ns1 ~]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled) -
The Cacti Manual.Pdf
The Cacti Manual Ian Berry Tony Roman Larry Adams J.P. Pasnak Jimmy Conner Reinhard Scheck Andreas Braun The Cacti Manual by Ian Berry, Tony Roman, Larry Adams, J.P. Pasnak, Jimmy Conner, Reinhard Scheck, and Andreas Braun Published 2017 Copyright © 2017 The Cacti Group This project is licensed under the terms of the GPL. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. All product names are property of their respective owners. Such names are used for identification purposes only and are not indicative of endorsement by or of any company, organization, product, or platform. Table of Contents I. Installation...................................................................................................................................................................................1 1. Requirements.....................................................................................................................................................................1 2. Installing Under Unix.......................................................................................................................................................2 -
Munin Documentation Release 2.999.10-Detached-2018-12-16-C13-G47debb5
Munin Documentation Release 2.999.10-detached-2018-12-16-c13-g47debb5 The Munin project and its contributors Dec 16, 2018 Contents 1 Preface 3 1.1 What is Munin ?...........................................3 1.2 Conventions.............................................3 1.3 Further Information.........................................3 1.4 Bug Reporting Guidelines......................................6 1.5 Documenting Munin.........................................7 2 Tutorial 11 2.1 Getting Started............................................ 11 2.2 Wildcard Plugins........................................... 13 2.3 Using SNMP plugins......................................... 14 2.4 Let Munin croak alarm........................................ 15 2.5 Munin and Nagios.......................................... 20 2.6 Advanced Features.......................................... 24 2.7 Extraordinary Usage......................................... 25 2.8 Monitoring the “unreachable” hosts................................. 25 2.9 Troubleshooting........................................... 28 3 Munin’s Architecture 35 3.1 Overview............................................... 35 3.2 Components............................................. 36 3.3 Protocols............................................... 60 3.4 Syntax................................................ 62 3.5 API.................................................. 64 4 Munin Installation 65 4.1 Prerequisites............................................. 65 4.2 Installing Munin.......................................... -
Storage of Network Monitoring and Measurement Data
Storage of Network Monitoring and Measurement Data A report submitted in partial fulfillment of the requirements for the degree of Bachelor of Computing and Mathematical Sciences at The University of Waikato by Nathan Overall c 2012 Nathan Overall Abstract Despite the limitations of current network monitoring tools, there has been little investigation into providing a viable alternative. Network operators need high resolution data over long time periods to make informed decisions about their networks. Current solutions discard data or do not provide the data in a practical format. This report addresses this problem and explores the development of a new solution to address these problems. Acknowledgements I would like to show my appreciation to the following persons who have made this project possible. Members of the WAND Network group for their continued support during the project, including my supervisor Richard Nelson. I would also like to give a special mention to Shane Alcock and Brendon Jones for their ongoing assistance to the project while they developed the WAND Network Event Monitor. DR. Scott Raynel for his support and advice throughout the project. The WAND network group and Lightwire LTD for providing the resources necessary to conduct the project. Contents List of Acronyms vi List of Figures vii 1 Introduction1 1.1 Network Operation.......................1 1.2 Overview of the Problem....................2 1.3 Goals...............................2 1.4 Plan of Action..........................3 2 Background4 2.1 Introduction...........................4 2.2 Round Robin Database.....................4 2.3 Tools using Round Robin Database (RRD)..........8 2.3.1 Smokeping...........................8 2.3.2 Cacti..............................9 2.4 The Active Measurement Project...............9 2.5 OpenTSDB.......................... -
Performance-Analyse in Großen Umgebungen Mit Collectd
Performance-Analyse in großen Umgebungen mit collectd Performance-Analyse in großen Umgebungen mit collectd Sebastian tokkee\ Harl " <[email protected]> FrOSCon 2009 2009-08-22 Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Gliederung Was ist collectd? Wichtige Eigenschaften Wichtige Plugins Eigene Erweiterungen Uber¨ den Tellerrand Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Was ist collectd? I collectd sammelt Leistungsdaten von Rechnern I Leistungsdaten sind zum Beispiel: I CPU-Auslastung I Speichernutzung I Netzwerkverkehr I Daten werden erhoben, verarbeitet und gespeichert I H¨aufig: Darstellung als Graphen I Nicht verwechseln mit Monitoring! Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Kontakt I Homepage: http://collectd.org/ I Mailinglist: [email protected] I IRC: #collectd auf irc.freenode.net Web 2.0\: http://identi.ca/collectd I " Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Wichtige Eigenschaften Wichtige Eigenschaften I Daemon I Freie Software (gr¨oßtenteils GPLv2) I Portierbar (Linux, *BSD, Solaris, . ) I Skalierbar (OpenWrt, . , Cluster / Cloud) I Effizient (Default-Aufl¨osung: 10 Sekunden) I Modular (Uber¨ 70 Plugins) Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Wichtige Eigenschaften Wichtige Eigenschaften I Daemon I Freie Software (gr¨oßtenteils GPLv2) I Portierbar (Linux, *BSD, Solaris, . ) I Skalierbar (OpenWrt, . , Cluster / Cloud) I Effizient (Default-Aufl¨osung: 10 Sekunden) I Modular (Uber¨ 70 Plugins) Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Wichtige Eigenschaften Wichtige Eigenschaften: 10-Sekunden-Aufl¨osung Performance-Analyse in großen Umgebungen mit collectd Was ist collectd? Wichtige Eigenschaften Wichtige Eigenschaften I Daemon I Freie Software (gr¨oßtenteils GPLv2) I Portierbar (Linux, *BSD, Solaris, .