Install and compile the Nagios document quickly in CentOS 6.5

Install and compile the Nagios document quickly in CentOS 6.5

Install and compile the Nagios documentation-all virtual environments in CentOS 6.5.

The purpose of writing this document is to facilitate and quickly deploy Nagios, which involves configurations that you like. You can modify and apply the configurations on your own.

Network Monitor Nagios Overview

Nagios construction and Configuration

Build a Nagios monitoring platform in the Nginx Environment

Configure the basic Nagios System on RHEL5.3 (using Nagios-3.1.2)

CentOS 5.5 + Nginx + Nagios monitoring and control terminal installation and Configuration Guide

Install Nagios Core for Ubuntu 13.10 Server

1. download and install the required software

1. yum install gcc mysql httpd php gd openssl-devel mysql-server vim wget

Wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-4.0.7.tar.gz

Wget http://nagios-plugins.org/download/nagios-plugins-2.0.3.tar.gz

Wget http://nchc.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.14/nrpe-2.14.tar.gz

Ls can see the nagios-4.0.7.tar.gz nagios-plugins-2.0.3.tar.gz nrpe-2.14.tar.gz

Yum install wget httpd php gcc glibc-common gd-devel make net-snmp

Useradd nagios

Passwd nagios

Groupadd nagcmd

Usermod-a-G nagcmd nagios

(Nagcmd: x: 504: nagios)

Tar-xvzf nagios-4.0.7.tar.gz

Cd nagios-4.0.7

./Configure-with-command-group = nagcmd

You can first./configure-help first to check the help. It should be the main nagios user by default, and you do not need to specify-with-nagios-user or anything else.

Make all

Make install

Make install-init

Install the init script in/etc/rc. d/init. d.

Make install-commandmode

This installation and configuration permission

Directory's external command file

Make install-config

This installation **/usr/local/nagios/etc configuration file example

Before modifying these sample files

Use Nagios. Read the HTML document

Make install-webconf

This Apache configuration file for installing Nagios

Web Interface

Cp-R contrib/eventhandlers // usr/local/nagios/libexec/

(-R: recursively copy the directory, that is, copy the directory together with the subdirectories and files under the directory .)

Chown-R nagios: nagios/usr/local/nagios/libexec/eventhandlers

/Usr/local/nagios/bin/nagios-v/usr/local/nagios/etc/nagios. cfg (check whether the configuration file has an error)

{[Root @ Nagios libexec] # chown-R nagios: nagios/usr/local/nagios/libexec/eventhandlers/

[Root @ Nagios libexec] # ll

Total 4

Drwxr-xr-x. 4 nagios 4096 Oct 21 eventhandlers}

/Etc/init. d/nagios start or service nagios start

Chkconfig -- add nagios

Chkconfig nagios on

Chkconfig httpd on

Service httpd start

2. Create a web User

Switch to ngios user

Htpasswd-c/usr/local/nagios/etc/htpasswd. users nagiosadmin

Enter the password nagios

3. Install nagios-plugins

Tar-xvzf nagios-plugins-2.0.3.tar.gz

Cd nagios-plugins-2.0.3

./Configure {-with-nagios-user = nagios-with-nagios-group = nagios}

Make

Make install

You can skip the previous step and do it once.

Chkconfig nagios on or chkconfig-level 35 nagios on

Chkconfig httpd on or chkconfig-level 35 httpd on

4. Disable firewall and selinux

Service iptables stop

Vim/etc/sysconfig/selinux: Change selinux to "disabled", which requires a restart to take effect.

Http: // 192.168.1.202/nagios/This is the nagios address. You need to enter the nagiosadmin nagios address with the username and password.

****************************** **********

Error: cocould not open command file '/usr/local/nagios/var/rw/nagios. cmd' for update!

This is mainly because apache users do not have permission to execute/usr/local/nagios/var/rw/nagios. cmd,

Solution:

Usermod-a-G nagcmd apache

Add the apache user to the nagios user group.

Date-s adjust the date and time clock-w save

5. Install the NRPE plug-in.

Tar-xvzf nrpe-2.14.tar.gz

Cd nrpe-2.14

./Configure

Make & make install

Make install-plugin

Put check_nrpe under/usr/local/nagios/libex. To use check_nrpe.

**************************************** **************************************** ***

****** **************************************** *****

Install on the monitored machine.

Install Nagios-plugins.

Useradd nagios

Passwd nagios

Tar-xvzf nagios-plugins-2.0.3.tar.gz

Cd nagios-plugins

./Configure

Make

Make install

Chown-R nagios: nagios/usr/local/nagios

Install nrpe-2.14

Tar-xvzf nrpe-2.14.tar.gz

Cd nrpe-2.14

./Configure

Make all

Make install-plugin

Make install-daemon

Make install-daemon-config

Yum install xinetd

Chkconfig -- add xinetd

Chkconfig xinetd on

Make install-xinetd

Vim/etc/xinetd. d/nrpe

Add the address of the monitoring host to the file's only_from = 127.0.0.1 192.168.1.107 //, separated by Spaces

Vim/usr/local/nagios/etc/nrpe. cfg

Vim/etc/services

Start nrpe.

/Usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe. cfg-d

Service xinetd restart

Netstat-at | grep nrpe

Netstat-an | grep 5666

Vim/etc/sysconfig/iptables

-A input-m state -- state NEW-m tcp-p tcp -- dport 5666-j ACCEPT)

If you do not add this line, the check_nrpe: Error-cocould not complete SSL handshake will be reported.

Run ipables-F to clear the rule and save it.

Then, check and confirm iptables-L-n.

Service iptables save

Service iptables restart

2. configuration files:

(1)/usr/local/nagios/etc/nrpe. cfg: the configuration file is correctly configured. Multiple IP addresses are separated by commas (,). Note that the space: allowed_host = 127.0.0.1, 192.168.0.1 is incorrect. It must be allowed_host = 127.0.0.1, there cannot be spaces after 192.168.1.202 comma;

(2) check whether the configuration is restricted in/etc/xinetd. d/nrpe file: add the IP address of the server that is allowed to access. Add the IP address in the line "only_from =". Separate multiple IP addresses with spaces, for example, only_from = 192.168.0.8 192.168.1.202.

Controlled terminal:

Vi/etc/xinetd. d/nrpe

Only_from

Vi/usr/local/nagios/etc/nrpe. cfg

Allowed_hosts adds the master IP Address

Service xinetd restart

Master terminal:

/Usr/local/nagios/libexec/check_nrpe-H the monitored IP address is used to test whether the connection is successful.

After modifying nrpe. cfg, you must restart nrpe. I did this:

Pkill nrpe;

/Usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe. cfg-d

2. Add monitoring nodes and services

3. Added verification users.

That is, when you access nagios through the web, you must use this user to log in. Here we add the user test: the password is 12345.

64. [root @ localhost nagios-plugins-1.4.13] # htpasswd-c/usr/local/nagios/etc/htpasswd test

You can use the which command to view the location of the htpasswd command. If the source code is installed in apache, write the full path of htpasswd. The user is test. After the command ends, you will be prompted to enter the password. Enter 123456 here.

65. View authentication File Content

66. [root @ localhost nagios-plugins-1.4.13] # less/usr/local/nagios/etc/htpasswd

67. Now the nagios installation is basically complete. You can access it through the web.

For more details, please continue to read the highlights on the next page:

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