nagios安装及简单配置（ZT）
摘自网址：
系统安装
下载nagios, nagios plugin, apache, php, gd lib
下载地址：
Nagios & Nagios Plugins
Apache
PHP
gd lib
一些画图的lib
安装过程：(用ｒｏｏｔ权限)
1, 安装gd lib
tar zxvf gd-2.0.33.tar.gz
cd gd-2.0.33; ./configure && make && make install
2, 安装 apache
tar httpd-2.0.54.tar.gz
cd httpd-2.0.54
./configure --prefix=/usr/local/apache2 --enable-so && make && make install
3, 安装php
tar php-5.0.4.tar.gz; cd php-5.0.4
./configure --with-apxs2=/usr/local/apache2/bin/apxs && make && make install
4, 安装Nagios
adduser nagios
Mkdir /usr/local/nagios
Chown nagios.nagios /usr/local/nagios
Groupadd nagcmd
Usermod –G nagcmd apache
Usermod –G nagcmd nagios
tar zxvf nagios-xxx.tar.gz
Cd nagios-xxx
./configure //默认会安装在/usr/local/nagios下。
Make && make all && make install
make install-config ＃安装配置文件的样例
make install-init ＃将nagios注册为service
4, 安装Nagios plugin
Tar zxvf nagios-plugins-xxx.tar.gz
Cd nagios-plugins-xxx
./configure
Make && make install
到目前为止环境已经准备好了，下一步是配置nagios Good Luck ……
系统配置
Apache配置选项修改
将以下配置加入到httpdconf中。
Alias /nagios/cgi-bin/images/ "/usr/local/nagios/share/images/"
AllowOverride None
Options None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/.htpasswd
Require valid-user
ScriptAlias /nagios/cgi-bin/ "/usr/local/nagios/sbin/"
AllowOverride None
Options 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/"
AllowOverride None
Options None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/.htpasswd
Require valid-user
在浏览器中用应该能够看到nagios的界面。
/usr/local/apache2/bin/htpasswd -c /usr/local/nagios/etc/htpasswd ddl
Nagios配置（重头戏 ^_^,官方文档非常详细，以下只是说一下最重要的配置文件及说明）
安装完nagios后，默认安装在/usr/local/nagios下，目录结构如下
Bin nagios 程序代码
Etc nagios 的配置文件目录
Libexec nagios 的plugin的目录
Sbin nagios CGI的目录
Share nagios 静态页面和调用cgi的目录
Var nagios 日志目录
Var/rw nagios 及扩展脚本文件
Nagios的主要配置文件
在etc下有几个对nagios相关的配置文件。
Cgi.cfg 定义cgi的一些值
Nagios.cfg Nagios的主要配置文件
checkcommands.cfg 定义一些监控命令
contactgroups.cfg 定义联系人的组
contacts.cfg 定义联系人
dependencies.cfg 没有用到
escalations.cfg 没有用到
hostgroups.cfg 定义服务组
hosts.cfg 定义服务器
servicegroup.cfg 定义监控服务组
services.cfg 定义要监控那些服务
timeperiods.cfg 定义监控时间
resource.cfg 定义指定plugin的目录配置文件
plugincommands.cfg 定义plugin的命令
cgi.cfg配置文件其中主要的选项
main_config_file=/usr/local/nagios/etc/nagios.cfg 定义nagios主配置文件的路径
physical_html_path=/usr/local/nagios/share 定义nagios 静态页面的路径
url_html_path=/nagios 定义在用url访问时的目录
use_authentication=0/1 定义是否需要认证访问监控系统
refresh_rate=60 定义多长时间刷新一次页面
nagios.cfg配置文件其中主要的选项
log_file=/usr/local/nagios/var/nagios.log 定义nagios的日志文件
cfg_file=/usr/local/nagios/etc/checkcommands.cfg
cfg_file=/usr/local/nagios/etc/plugincommands.cfg
cfg_file=/usr/local/nagios/etc/misccommands.cfg
cfg_file=/usr/local/nagios/etc/contactgroups.cfg
cfg_file=/usr/local/nagios/etc/contacts.cfg
cfg_file=/usr/local/nagios/etc/dependencies.cfg
cfg_file=/usr/local/nagios/etc/escalations.cfg
cfg_file=/usr/local/nagios/etc/hostgroups.cfg
cfg_file=/usr/local/nagios/etc/hosts.cfg
cfg_file=/usr/local/nagios/etc/services.cfg
resource_file=/usr/local/nagios/etc/resource.cfg
cfg_file=/usr/local/nagios/etc/timeperiods.cfg cfg_file指定要include进来的配置文件
checkcommands.cfg配置文件其中主要的选项
# 'check_local_disk' command definition
define command{
command_name check_local_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}
contactgroups.cfg配置文件其中主要的选项
define contactgroup{
contactgroup_name spider
alias sogou-monitor monitor
members ruiguo, guorui
}
contacts.cfg配置文件其中主要的选项
define contact{
contact_name ruiguo
alias Guo Rui
service_notification_period 24x7
host_notification_period 24x7
service_notification_options c,r
host_notification_options d,r
service_notification_commands notify-by-email
host_notification_commands host-notify-by-email
email ruiguo at sohu-inc dot com
pager 13681374598
}
hostgroups.cfg 配置文件其中主要的选项
define hostgroup{
hostgroup_name spider
alias spider servers
members spider01,spider02,spider03,spider04
}
hosts.cfg配置文件其中主要的选项
define host{
name sogou-server
notifications_enabled 1
event_handler_enabled 1
flap_detection_enabled 1
process_perf_data 1
retain_status_information 1
retain_nonstatus_information 1
register 0
notification_interval 0
}
#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
# spider host definition
#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
define host {
use sogou-server
host_name spider01
alias spider01
address 10.10.66.133
check_command check-host-alive
contact_groups spider
max_check_attempts 10
checks_enabled 1
failure_prediction_enabled 1
notification_period 24x7
notification_options d,u,r
}
services.cfg配置文件其中主要的选项
define service{
name generic-service
active_checks_enabled 1
passive_checks_enabled 1
parallelize_check 1
obsess_over_service 1
check_freshness 0
notifications_enabled 1
event_handler_enabled 1
flap_detection_enabled 1
process_perf_data 1
retain_status_information 1
retain_nonstatus_information 1
register 0
notification_interval 0
notification_period 24x7
notification_options w,u,c,r
}
#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
# spider service
#;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
define service {
use generic-service
hostgroup_name spider
service_description crawler
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
contact_groups spider
check_command ssh_procs!Crawler!root #监控命令
notification_options w,u,c,r
}
define service {
use generic-service
hostgroup_name clustor
service_description Disk space
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
contact_groups clustor
check_command ssh_disk!20%!10%!/DATA #监控硬盘空间
notification_options w,u,c,r
}
timeperiods.cfg配置文件其中主要的选项
# '24x7' timeperiod definition
define timeperiod{
timeperiod_name 24x7
alias 24 Hours A Day, 7 Days A Week
sunday 00:00-24:00
monday 00:00-24:00
tuesday 00:00-24:00
wednesday 00:00-24:00
thursday 00:00-24:00
friday 00:00-24:00
saturday 00:00-24:00
}
# '22x7' timeperiod definition -- zhaoliyang
define timeperiod{
timeperiod_name 22x7
alias 22 Hours A Day, 7 Days A Week
sunday 00:00-01:00,02:00-24:00
monday 00:00-01:00,02:00-24:00
tuesday 00:00-01:00,02:00-24:00
wednesday 00:00-01:00,02:00-24:00
thursday 00:00-01:00,02:00-24:00
friday 00:00-01:00,02:00-24:00
saturday 00:00-01:00,02:00-24:00
}
# 'workhours' timeperiod definition
define timeperiod{
timeperiod_name workhours
alias "Normal" Working Hours
monday 09:00-17:00
tuesday 09:00-17:00
wednesday 09:00-17:00
thursday 09:00-17:00
friday 09:00-17:00
}
# 'nonworkhours' timeperiod definition
define timeperiod{
timeperiod_name nonworkhours
alias Non-Work Hours
sunday 00:00-24:00
monday 00:00-09:00,17:00-24:00
tuesday 00:00-09:00,17:00-24:00
wednesday 00:00-09:00,17:00-24:00
thursday 00:00-09:00,17:00-24:00
friday 00:00-09:00,17:00-24:00
saturday 00:00-24:00
}
# 'none' timeperiod definition
define timeperiod{
timeperiod_name none
alias No Time Is A Good Time
}
resource.cfg配置文件其中主要的选项
$USER1$=/usr/local/nagios/libexec 设置变量
plugincommands.cfg配置文件其中主要的选项 （定义一些plugin的命令）
# 'check_ssh_procs' command definition
define command{
command_name ssh_procs
command_line /usr/local/nagios/libexec/check_by_ssh -H $HOSTADDRESS$ -l root -C "/usr/local/nagios/l
ibexec/check_procs -w 1:1 -c 1:1 -C $ARG1$ -u $ARG2$"
}
运行nagios
注意用绝对路径，在运行nagios之前应该将这台机器到被监控的服务器上的信任关系建好。
1, 第一次运行首先测试一下配置文件是否正确
/usr/local/nagios/bin/nagios –v /usr/local/nagios/etc/nagio.cfg
2, 没有问题运行
/usr/local/nagios/bin/nagios –d /usr/local/nagios/etc/nagio.cfg
3, ps –ef 应该看到nagios进程存在。
4, 用浏览器访问应该能看到界面及定义好的监控主机及对象的列表。
运行Nagios
#service nagios start
安装NRPE
服务器端
安装环境
Red Hat Enterprise Linux AS release 4 U4
LANG=en_US.UTF-8
软件列表
nrpe-2.5.2.tar.gz
软件存放位置
/data/software
安装过程
#cd /data/software
#tar zxvf nrpe-2.5.2.tar.gz
#cd nrpe-2.5.2
#./configure
#make all
#cp /data/software/nrpe-2.5.2/src/check_nrpe /usr/local/nagios/libexec/
客户端
Linux客户端
安装环境
CentOS 4.3 LANG=en_US.UTF-8
软件列表
nagios-plugins-1.4.5.tar.gz
nrpe-2.5.2.tar.gz
软件存放位置
/home/software
安装过程
#cd /data/software
#mkdir /usr/local/nagios
#groupadd -g 810 nagios
#useradd -u 811 -g 810 nagios
#tar zxvf nagios-plugins-1.4.5.tar.gz
#cd nagios-plugins-1.4.5
#./configure --prefix=/usr/local/nagios --with-cgiurl=/nagios/cgi-bin --with-htmurl=/nagios/ --with-nagios-user=nagios --with-nagios-grp=nagios
#make
#make install
#tar zxvf nrpe-2.5.2.tar.gz
#cd nrpe-2.5.2
#./configure
#make all
#cd src/
#cp nrpe /usr/bin/
#cp ../nrpe.cfg /etc/
#echo "/usr/bin/nrpe -c /etc/nrpe.cfg --daemon" >>/etc/rc.local
#vi nrpe.cfg
--------------------------------------------------------------------------------
server_port=5666
allowed_hosts=127.0.0.1,60.28.24.188
nrpe_user=nagios
nrpe_group=nagios
debug=0
command_timeout=60
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 80% -c 50%
command[check_root]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /
command[check_opt]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /opt
command[check_data]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /data
command[check_www]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /www
--------------------------------------------------------------------------------
启动nrpe
#/usr/bin/nrpe -c /etc/nrpe.cfg --daemon
Windows客户端
安装环境
Windows Server 2003 Enterprise Edition SP1
软件列表
nrpe_nt.0.7f-bin.zip
check_disk-1.13c.zip
nrpe_nt_plugins.zip
软件存放位置
D:/software
安装过程
将文件解压到D:\nrpe
在cmd执行
D:\nrpe>NRPE_NT.exe -i -n
NRPE_NT Service sucessfully installed!
打开注册表，在
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\NRPE_NT
修改ImagePath＝"D:\nrpe\NRPE_NT.exe -n"
启动服务
Nagios Remote Plugin Executor for NT/W2K
注意：check_nrpe 需要nrpe-2.0并且需要-n选项
mail.php
include "smtp.class.php";
exec("echo 2 >> 1.txt");
$smtpserver ="smtp.163.com";
$port = 25 ;
$smtpuser ="clay_333";
$smtppwd ="*******";
$mailtype ="HTML";
$sender = "";
$smtp = new smtp($smtpserver,$port,true,$smtpuser,$smtppwd,$sender);
$smtp->debug = true;
$to = "";
#$subject ="nagios";
$subject =$argv[1];
#$body = "";
$body=$argv[2];
$host=$argv[3];
#echo $_SERVER['QUERY_STRING'];
#echo $argv;
#print_r($argv[1]);
$send=$smtp->sendmail($to,$sender,$subject,$body,$mailtype);
if($send==1){
# echo "mail end";
`/home/haijun/write-maillog.sh "mail success"`;
}
else{
# echo "mail fail";
`/home/haijun/write-maillog.sh "mail fail"`;
#echo "resion:".$this->smtp->logs;
}
$return=`/usr/local/nagios/libexec/check_nrpe -H $host -t 90 -c check_writelog`
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