nagios的安装

【nagios服务端】

1、检测所需要的软件库

yum -y install gcc gcc-c++ libxml2 libxml2-devel autoconf make libart_lgpl libart_lgpl-devel gd gd-devel openssl-devel libjpeg libjpeg-devel libpng libpng-devel freetype-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel pango-devel cairo-devel

2、Add nagios for nagios system:

#useradd nagios �Cs /sbin/nologin �Cg nagios

#yum �Cy install httpd php gcc glibc glibc-common gd gd-devel openssl openssl-devel

创建Nagios账户和组

[root@UnixHot src]#groupadd nagioscmd

[root@UnixHot src]# useradd -g nagioscmd nagios

[root@UnixHot src]#usermod -g nagcmd apache

#tar zvxf nagios-3.2.3.tar.gz �CC /data/nagios

#cd /data/nagios

# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagioscmd

#make all

#make install

#make install-init

#make install-commandmode

#make install-config

Install nagios-plugins

#cd /data

# tar zvxf nagios-plugins-1.4.15.tar.gz

#cd  nagios-plugins-1.4.15

# ./configure --prefix=/usr/local/nagios

#make all

#make install

Add & Change access nagios web site password:

#htpasswd �Cc /usr/local/nagios/etc/htpasswd.user nagiosadmin

>123456

>123456

Install plugin-nrpe

# tar xf nrpe-2.12.tar.gz

# cd nrpe-2.12

./configure --prefix=/usr/local/nrpe --with-nagios-user=nagios --with-nagios-group=nagioscmd --with-nrpe-user=nagios --with-nrpe-group=nagioscmd

make all

make install-plugin

Install apache

前提：64位操作系统安装apache，需要apr和apr-util的支持，此处省略，这2款软件的安装目录在/usr/local/apache/apr和apr-util，目录需要在编译安装之前就需要建好，而且是在apache之下

解压安装：tar -xf http-2.2.10.tar.gz && cd http-2.2.10 && ./configure --prefix=/usr/local/apache --with-apr=/usr/local/apache/apr --with-apr-util=/usr/local/apache/apr-util && make && make install

Install php(由于后面要用到Pnp,所以这里需要让php支持gd、png、jpeg、zlib等模块)

./configure -prefix=/usr/local/php --with-config-file-path=/usr/local/php --with-apxs2=/usr/local/apache/bin/apxs --with-mysql=/usr --with-freetype-dir=/usr --with-gd=/usr/local/gd --with-png-dir=/usr --with-jpeg-dir=/usr --with-libdir=lib64  --with-zlib  --enable-sockets && make && make install

ps:64位操作系统安装php的库很容易报错，就我在安装的时候出现的问题，总结如下：

1、"configure: error: libjpeg.(a|so) not found“

解决：之前已经安装过了libjpeg 和libjpeg-devel了，仍然找不到库文件，明显是路径问题，默认会在/usr/lib/目录里查找相应的文件.但用whereis libjpeg发现.libjpeg被安装在了/usr/lib64/目录里.

# whereis libjpeg

libjpeg: /usr/lib/libjpeg.so /usr/lib64/libjpeg.so

即复制到/usr/lib目录里

cp -frp /usr/lib64/libjpeg.* /usr/lib/

configure一般的搜索编译路径为/usr/lib/下,因为php默认就在/usr/lib/下找相关库文件,而x64机器上是在:/usr/lib64.这时你就可以直接把需要的库文件从/usr/lib64中拷贝到/usr/lib/中去就可以了.

2、configure: error: Cannot find MySQL header files under /usr/local/src/mysql-5.1.14-beta-linux-i686-glibc23/include/.

Note that the MySQL client library is not bundled anymore!

--解决：查看系统有没有安装mysql header

find / -name mysql.h

root># find / -name mysql.h

/usr/local/mysql/include/mysql.h

/usr/include/mysql/mysql.h

/home/soft/mysql-5.5.28/include/mysql.h

--有的话，重新编译，加入--with-mysql=/usr

修改apache配置

找到：

DirectoryIndex index.html index.html.var

修改为：

DirectoryIndex index.html index.php

接着增加apache支持php：nagios需要php的支持，否则在打开nagios页面的时候，将无法打开，而且会出现下载形式，这就是在调用cgi页面的时候出错

AddType application/x-httpd-php .php

然后为nagios授权，添加如下2行：

ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"

<Directory "/usr/local/nagios/sbin">

       AuthType Basic

       Options ExecCGI

       AllowOverride None

       Order allow,deny

       Allow from all

       AuthName "Nagios Access"

       AuthUserFile /usr/local/nagios/etc/htpasswd.user

       Require valid-user

</Directory>

Alias /nagios "/usr/local/nagios/share"

<Directory "/usr/local/nagios/share">

       AuthType Basic

       Options None

       AllowOverride None

       Order allow,deny

       Allow from all

       AuthName "Nagios Access"

       AuthUserFile /usr/local/nagios/etc/htpasswd.user

       Require valid-user

</Directory>

注意：如果apache和nagios的话，需要先停止防火墙或者清空防火墙规则，而且得注意selinux

临时关闭selinux，getenforce 0

查看selinux是否关闭，setenforce 0

【nagios客户端】--被动端只需要安装nrpe和nagios-plugins

[root@UnixHot src]#groupadd nagioscmd

[root@UnixHot src]# useradd -g nagioscmd nagios

Install nagios-plugins

# tar zvxf nagios-plugins-1.4.15.tar.gz

#cd  nagios-plugins-1.4.15

# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagioscmd

#make all

#make install

# tar xf nrpe-2.12.tar.gz

# cd nrpe-2.12

./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagioscmd --with-nrpe-user=nagios --with-nrpe-group=nagioscmd

make all

make install-plugin

# make install-daemon
# make install-daemon-config

修改nrpe配置文件，添加nagios服务器端Ip

allowed_hosts=127.0.0.1,192.168.1.150（nagios服务器地址）

启动服务：

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg �Cd

# netstat �Clntp

tcp        0      0 192.168.1.165:5666         0.0.0.0:*                   LISTEN      16431/nrpe

【nrpe检测】这一步灰常关键，服务器端如果检测不到客户端版本的话，后面的操作就不需要进行了

root># ./check_nrpe -H xx(xx客户端ip)

NRPE v2.12

如果返回Connection refused or timed out，则要注意防火墙和selinux，可以先清空防火墙规则看看能否检测到版本，不过在真实环境下不可能会让防火墙规则清空，则需要这样添加即可：

vi /etc/sysconfig/iptables

-A INPUT -s xx(nagios服务端ip) -p tcp --dport 5666 -j ACCEPT

然后再重启iptables，注意规则先后顺序

如果客户端在安装nrpe的时候，出现如下错误：

cd ./src/ && make install

make[1]: Entering directory `/home/1/nrpe-2.13/src'

make install-plugin

make[2]: Entering directory `/home/1/nrpe-2.13/src'

/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/libexec

/usr/bin/install: invalid group `nagios'

make[2]: *** [install-plugin] Error 1

make[2]: Leaving directory `/home/1/nrpe-2.13/src'

make[1]: *** [install] Error 2

make[1]: Leaving directory `/home/1/nrpe-2.13/src'

make: *** [install] Error 2

看看nagios用户属于什么组，最好是把nagios加入到nagios本身组中，我曾经把nagios加入到自己建的组中，然后就出现了如上错误

####x64操作系统编译方式安装php出现的种种问题的解决

http://www.oschina.net/question/17_87