nagios监控公司内部主机配置
一.实验描述系统：SUSE Linux Enterprise 10 64-bit
nagios服务器IP：192.168.1.122
所需软件：nagios-3.2.0.tar.gz
nagios-cn-3.2.0.tar.bz2
nagios-plugins-1.4.15.tar.gz
apache2-2.2.3-16.21
apache2-mod_php5-5.2.5-9.20
二.安装nagios主程序
1.创建用户及目录并设定权限
#groupadd nagios
#useradd -g nagios nagios
#mkdir /usr/local/nagios
#chown -R nagios.nagios /usr/local/nagios
2.编译安装
# tar zxvf nagios-3.2.0.tar.gz
# cd nagios-3.2.0/
# ./configure --prefix=/usr/local/nagios/ --with-gd-lib=/usr/local/lib --with-gd-inc=/usr/local/include/
报错
http://blog.运维网.com/attachment/201304/175102376.png
解决方法：安装GCC，如下显示表示正常
http://blog.运维网.com/attachment/201304/175155123.png
# make all
出现以下提示，然后按照提示逐步安装就OK
http://blog.运维网.com/attachment/201304/175255958.png
# make install //来安装主程序，CGI和HTML文件
http://blog.运维网.com/attachment/201304/175330745.png
# make install-init //在/etc/rc.d/init.d安装启动脚本
http://blog.运维网.com/attachment/201304/175400451.png
# make install-commandmode //配置目录权限
http://blog.运维网.com/attachment/201304/175431624.png
# make install-config //安装示例配置文件，安装的路径是/usr/local/nagios/etc
http://blog.运维网.com/attachment/201304/175512622.png
# make install-webconf
http://blog.运维网.com/attachment/201304/175539208.png
3.验证时否安装成功
切换目录到/usr/local/nagios/查看是否有以下几个文件存在，如果存在则表示程序被正确的安装到系统上啦
http://blog.运维网.com/attachment/201304/175612185.png
bin nagios执行程序所在目录，nagios文件既为主程序
etc nagios配置文件位置，初始安装完后，只有几个*.cfg文件
sbin nagios cgi文件所在目录。也就是执行外部命令所需文件所在的目录
share nagios网页文件所在的目录
var nagios日志文件，spid等文件所在目录
三.安装插件
1.编译安装
# tar zxvf nagios-plugins-1.4.15.tar.gz
# cd nagios-plugins-1.4.15/
# ./configure --prefix /usr/local/nagios/
http://blog.运维网.com/attachment/201304/175651786.png
# make && make install
http://blog.运维网.com/attachment/201304/175714516.png
# ls /usr/local/nagios/libexec/ \\显示一下内容表示插件安装成功
http://blog.运维网.com/attachment/201304/175750834.png
四.安装apache2
http://blog.运维网.com/attachment/201304/175823672.png
# vim /etc/apache2/uid.conf \\修改成一下内容
http://blog.运维网.com/attachment/201304/175858940.png
# vim /etc/apache2/httpd.conf \\在最后面添加一下内容
ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
AuthName "nagios access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
Alias /nagios /usr/local/nagios/share
Options None
AllowOverride None
Order allow,deny
Allow from all
AuthName "nagios access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
# /usr/sbin/htpasswd2 -c /usr/local/nagios/etc/htpasswd shilong
http://blog.运维网.com/attachment/201304/180109590.png
重启apache和nagios，输入访问地址http://192.168.1.100/nagios
五.监控局域网主机（windows和linux都行）
1.修改nagios主配置文件
# cd /usr/local/nagios/etc
# vim nagios.cfg
http://blog.运维网.com/attachment/201304/180413999.png
2.添加配置文件
# vim /usr/local/nagios/etc/objects/hosts.cfg
define host {
host_name 192.168.1.1
alias Hillstone Firewall \\别名
address 192.168.1.1 \\填写被监控主机IP
contact_groups admins \\这个值是来自contacts.cfg文件里面,contactgroup_name后面的值
check_command check-host-alive
max_check_attempts 5
notification_interval 10
notification_period 24x7
notification_options d,u,r
}
# vim /usr/local/nagios/etc/objects/servers.cfg
define service {
host_name 192.168.1.1
service_description check-host-alive
check_period 24x7
max_check_attempts 4
normal_check_interval 3
retry_check_interval 2
contact_groups admins \\此处的值同上
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive \\检查主机是否存活
}
如果监控多个主机只需要在hosts.cfg添加多个host,并在servers.cfg里面也添加相关配置
3.配置报警发送邮件
# vim /usr/local/nagios/etc/objects/contacts.cfg
http://blog.运维网.com/attachment/201304/180758426.png
六.配置所遇到的报错
1.如果这里打开页面出现403错误，证明你的php没有安装（我这里就安装啦一个apache2-mod_php5-5.2.5-9.20然后把相关的依赖包都安装上去啦）。重启apache，nagios页面就出来啦。
2.nagios web页面提示
It appears as though you do not have permission to view information for any of the services you requested...
打开cgi.cfg配置文件，里面有个参数:
use_authentication=1
为了保障系统的安全性，nagios设置了这个参数，默认为1,改为0即可
3页面显示
http://blog.运维网.com/attachment/201304/180831703.png
查看nagios进程是否启动。如果没有则进行以下操作
/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
4.nagios页面有部分是乱码,如图:
http://blog.运维网.com/attachment/201304/180918898.png
发现是apache配置文件的编码问题
修改/etc/apache2/httpd.conf
最后添加AddDefaultCharset utf-8
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