server via direct routing vs/ DR (Virtual Server via Direct Routing), which can greatly improve the scalability of the system. Vs/nat, Vs/tun and VS/DR technologies are three IP load balancing technologies implemented in LVS cluster.
Nagios Introduction
Nagios is a monitoring system that monitors system operation status and network information. Nagios can moni
Nagios-Linux
CentOS release 5.8 (Final)
192.168.1.111
Nagios-plugins, nrpe
Nagios-Windows
Windows XP
192.168.1.113
NSClient ++
The Server has installed nagios software to process the monitoring data and provides a web
Let's take a lookNagiosClient ProgramInstallSituation:
Figure-nagios
The nrpe program is required to monitor the local information of the client.
The principle of NRPE is as follows:
NRPE consists of two parts:
-Check_nrpe plug-in, located on the monitoring host
-NRPE daemon: runs on a remote linux host (usually monitored)
The entire monitoring process is as
1. First make sure that the Nagios monitoring software is installed on the server side650) this.width=650; "title=" 6.jpg "src=" Http://s3.51cto.com/wyfs02/M00/5C/2A/wKiom1UbsOzjKJeBAAR2k-QP5TY349.jpg " alt= "Wkiom1ubsozjkjebaar2k-qp5ty349.jpg"/>2. Install the Nrpe plugin on the monitor side[email protected] ~]# yum install xinetd OpenSSL openssl-devel-y[Email protected] ~]# wget http://liquidtelecom.dl.sourceforge.net/project/
, in the recent research Nagios, there is no way, can only honestly to check some information and some documents to do, after a few configuration to this evening has been able to mail the alarm, Hee, Some small happy, although this is not too difficult, but I still went to consult some Linux New Bei people and their own to think about a period of time, feel the night reading and learning not in vain, Hee, t
Monitoring targetMonitoring target host is divided into four partsHardware ResourcesOperating systemDatabaseApplication softwareMonitoring purpose:Before server performance tuning, know what to adjust and where the system bottleneck ismust be monitored at the same time, including throughput, reaction time, utilization, etc.Monitoring command:Process monitoringPsTopStorage monitoringFreeSwapon-sDf-hNetwork MonitoringIfconfigNetstatPingTraceroutePerformance monitoringCommon Performance Monitoring
In our first part of this article, we ' ve explained in detail on what to install and configure latest Nagios Core 4.2.0on Ce Ntos 7.2 server. In this article we'll show you how to add Remote Linux machine and it's services to Nagios monitoring host using NRPE AG Ent.We hope you already have Nagios installed and runnin
1, usually configure Nagios client nrped boot most commonly used is in the/etc/rc.local file configuration:/usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe.cfg-d2, but there is a better way (so it is easy to use the script to start or close):Create the nrped script file under the/ETC/INIT.D directory and execute
NagiosThe process of monitoring a Linux server is as follows:
Client Configuration:
User Creation:
Useradd nagios can modify the shell of this account in/etc/password to/sbin/nologin)
Passwd nagios
Install plug-ins:
tarzxvfnagios-plugins-1.4.11.tar.gz
cdnagios-plugins-1.4.11
./configure--prefix=/usr/lo
Installation method Please refer to Linux learning Note: Nagios installationClientSince my installation is using xinetd This daemon, I need to adjust the relevant configuration file[[emailprotected]~]#vi/etc/xinetd.d/nrpeservicenrpe{ flags= Ipv4socket_type=stream port =5666wait =nouser =nagios group=nagios server =/usr
Install and configure Nagios monitoring in Linux
Nagios installation Configuration:Nagios http://www.nagios.orgEnvironment setup:CentOS6.6 192.168.11.30 serves as the server.Centos6.6 192.168.11.100 as the client
1. Install Nagios-server (192.168.11.30)Centos6's default yum
1.nagios to add a monitoring service that monitors the number of scan engines on the client, the engine runs on the KVM virtual machine, as follows:[Email protected] libexec]# Virsh listId Name State----------------------------------avpscan_000 RunningAVPSCAN_001 RunningAVPSCAN_002 RunningAvpscan_003 RunningAvpscan_004 RunningAvpscan_005 RunningPanax Notoginseng avpscan_006 RunningAvpscan_007 RunningAvpscan
Powershell updates Nagios Windows Client
Beans found on a newly configured Nagios server today that the Windows Server's memory check still uses check_nt, and check_nt checks the sum of physical memory and virtual memory; I only need to check the physical memory, so I need to change it to check_nrpe. The configuration on the
Nagios's official QuickStart URL https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/quickstart-fedora.htmlAbout Nagios's diagram with other servers (the simplest description)650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/7A/C4/wKiom1a0FDjz4crOAABYV7wIrvQ573.png "title=" Qq20160205110546.png "alt=" Wkiom1a0fdjz4croaabyv7wirvq573.png "/>The simplest is because this is just the most common way to deploy, and there is a cluster pattern that is not being studied here.Way
This article describes installing Nagios on a Linux host and monitoring this machine.Experimental environment: rhel5.6, nagios-3.2.3.tar.gz, nagios-plugins-1.4.15.tar.gzExperimental process:A small shortcut to this experiment is to install Apache first, then unzip Nagios, co
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