【nagios 一】自动化安装nagios
由于nagios的源码安装过程比较繁琐，于是将整个编译安装过程写进脚本让系统自动运行，这样减少人为干预，提高效率。思路来源于“dl528888”的博客，http://dl528888.blog.运维网.com/
实验环境：centos 6.3 x86_64， 关闭防火墙，SELinux设为Disabled
安装包： nagios-3.4.1.tar.gz
nagios-plugins-1.4.16.tar.gz
nrpe-2.13.tar.gz
将该脚本nagiosauto.sh 和nagios的安装包nagios-3.4.1.tar.gz和插件安装包nagios-plugins-1.4.16.tar.gz 以及nrpe-2.13.tar.gz放在目录/usr/local/src下，并执行nagiosauto.sh脚本即可进行安装。
脚本执行完后，打开浏览器，输入http://ip/nagios, 提示输入用户名和密码，分别为nagiosadmin 和你所设置的密码 即可进入nagios的控制界面。
关于nagios的详细配置还需继续深入研究。
[*]#!/bin/bash
[*]#auto install nagios
[*]#v2.0 -- add nrpe and correct path
[*]#2012-12-10
[*]
[*]LANG=C
[*]nagiosdir="/usr/local/nagios"
[*]
[*]function init_pack() #安装需要的包和库文件
[*]{
[*] yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5-devel libidn libidn-devel openssl openssl-devel nss_ldap openldap openldap-developenldap-clients openldap-servers libxslt-devel libevent-devel ntplibtool-ltdl bison libtool vim-enhanced gd*
[*]}
[*]
[*]
[*]function install_httpd()#安装httpd和php 服务
[*]{
[*] yum -y install httpd* php*
[*] chkconfig httpd on
[*] service httpd restart
[*]}
[*]
[*]function user_group() #添加nagios用户和组
[*]{
[*] if [ ! $(grep 'nagios' /etc/passwd) ]; then
[*] useradd nagios
[*] fi
[*] if [ ! $(grep 'nagcmd' /etc/group) ]; then
[*] groupadd nagcmd
[*] fi
[*] usermod -G nagcmd nagios
[*] usermod -G nagcmd apache
[*]}
[*]
[*]function install_nagios() #编译安装nagios
[*]{
[*] cd /usr/local/src
[*] tar zxvf nagios-3.4.1.tar.gz
[*] tar zxvf nagios-plugins-1.4.16.tar.gz
[*] tar zxvf nrpe-2.13.tar.gz
[*]
[*] cd /usr/local/src/nagios
[*] ./configure --with-command-group=nagcmd --prefix=$nagiosdir
[*] make all
[*] make install
[*] make install-init
[*] make install-config
[*] make install-commandmode
[*] make install-webconf
[*]
[*] cd /usr/local/src/nagios-plugins-1.4.16
[*] ./configure --with-nagios-user=nagios --with-nagios-group=nagios --perfix=$nagiosdir
[*] make && make install
[*]
[*] cd /usr/local/src/nrpe-2.13
[*] ./configure
[*] make all
[*] make install-plugin
[*] make install-daemon
[*] make install-daemon-config
[*]
[*] htpasswd -bc $nagiosdir/etc/htpasswd.users nagiosadmin "bcd123" #设置自己的密码
[*] chown -R nagios:nagios $nagiosdir
[*] chmod -R 755 $nagiosdir
[*] chcon -R --reference=/var/www/html/ $nagiosdir
[*] chkconfig --add nagios
[*] chkconfig nagios on
[*] $nagiosdir/bin/nagios -v $nagiosdir/etc/nagios.cfg
[*] service nagios start
[*]}
[*]
[*]init_pack
[*]install_httpd
[*]user_group
[*]install_nagios
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