百利工頭 » Linux服務主機討論區 » [轉貼]nagios3.0.5在centos 5.2上安裝

查看完整版本: [轉貼]nagios3.0.5在centos 5.2上安裝

chun 2009-6-19 17:30

[轉貼]nagios3.0.5在centos 5.2上安裝

http://blog.sina.com.cn/s/blog_4e424e210100b6vi.html~type=v5_one&label=rela_prevarticle <div class="articleTitle">
<div style="display: inline;">
Nagios3.0.5在CentOS5.2中安装（一）(2008-11-27 16:09:46)</div></div>
<div class="articleTag">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<script>
var $tag='nagios,monitor,cacti,centos,监控,it';
var $tag_code='6e321478b71e4b676ece173ff917eae7';
</script>
标签：<a href="http://uni.sina.com.cn/c.php?t=blog&k=nagios&ts=bpost&stype=tag" class="tag" target="_blank">nagios</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=monitor&ts=bpost&stype=tag" class="tag" target="_blank">monitor</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=cacti&ts=bpost&stype=tag" class="tag" target="_blank">cacti</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=centos&ts=bpost&stype=tag" class="tag" target="_blank">centos</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=%BC%E0%BF%D8&ts=bpost&stype=tag" class="tag" target="_blank">监控</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=it&ts=bpost&stype=tag" class="tag" target="_blank">it</a> 
</td>
<td valign="top" width="250" align="right">分类：<a href="http://blog.sina.com.cn/s/articlelist_1312968225_1_1.html">网络监控</a></td>
</tr></tbody>
</table>
</div>

1.系统：CentOS 5.2 
 
2.安装前准备： 
1).安装好apache，GD库（我的GD库安装在/usr/local/libgd）。 
2).下载Nagios3.0.5,Nagios-plugins1.4.11,nrpe2.12,nsclient++ 
＃ http://www.nagios.org/download/ 
wget
http://osdn.dl.sourceforge.net/sourceforge/nagios/nagios-3.0.5.tar.gz 

wget
http://osdn.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.11.tar.gz 

＃ Nagios3.0.5,Nagios-plugins1.4.11,nrpe2.12安装在监控服务器上。 
＃去http://www.nagios.org/download/addons/下载nrpe和nsclient++插件。 
＃ nrpe2.12安装在Linux/Unix被监控端。 
＃ nsclient++安装在Windows被监控端。 
3).创建帐号及组 
＃创建帐号 
/usr/sbin/useradd -m nagios 
passwd nagios 
＃创建组 
/usr/sbin/groupadd nagcmd 
/usr/sbin/usermod -a -G nagcmd nagios 
/usr/sbin/usermod -a -G nagcmd daemon 
＃ daemon为运行apache的帐号。 
 
3.安装nagios 
tar xzf nagios-3.0.5.tar.gz 
cd nagios-3.0.5 
./configure --with-command-group=nagcmd
--with-gd-lib=/usr/local/libgd/lib/
--with-gd-inc=/usr/local/libgd/include/ 
make all 
# 使用make install来安装主程序,CGI和HTML文件 
make install 
# 使用make install-init在/etc/rc.d/init.d安装启动脚本 
make install-init 
# 使用make install-cofig来安装示例配置文件,安装的路径是/usr/local/nagios/etc. 
make install-config 
# 使用make install-commandmode来配置目录权限 
make install-commandmode 
 
nagios目录功能的简要说明： 
bin <div class="articleContent" id="articleBody"> 
 Nagios执行程序所在目录，nagios文件即为主程序 
etc  
 Nagios配置文件位置 
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 等文件所在的目录 
var/archives  
 日志归档目录 
var/rw  
 用来存放外部命令文件 
  
配置apache 
将现面行加入apache配置文件的alias模块<IfModule
alias_module> 
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ 
ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin" 
 
<Directory
"/usr/local/nagios/sbin"> 
#  SSLRequireSSL 
   Options ExecCGI 
   AllowOverride None 
   Order allow,deny 
   Allow from all 
#  Order deny,allow 
#  Deny from all 
#  Allow from 127.0.0.1 
   AuthName "Nagios Access" 
   AuthType Basic 
   AuthUserFile
/usr/local/nagios/etc/htpasswd.users 
   Require valid-user 
</Directory> 
 
Alias /nagios "/usr/local/nagios/share" 
 
<Directory
"/usr/local/nagios/share"> 
#  SSLRequireSSL 
   Options None 
   AllowOverride None 
   Order allow,deny 
   Allow from all 
#  Order deny,allow 
#  Deny from all 
#  Allow from 127.0.0.1 
   AuthName "Nagios Access" 
   AuthType Basic 
   AuthUserFile
/usr/local/nagios/etc/htpasswd.users 
   Require valid-user 
</Directory> 
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ 
＃创建apache目录验证文件 
/usr/local/apache/bin/htpasswd -c
/usr/local/nagios/etc/htpasswd.users nagiosadmin 
New password: (输入密码) 
Re-type new password: (再输入一次密码) 
Adding password for user nagiosadmin 
＃重启apache：/usr/local/apache/bin/apachectl -k restart 
 
# 配置nagios配置文件 
vi /usr/local/nagios/etc/objects/contacts.cfg 
# 将里面的email地址改为自己的email地址。 
 
4.安装Nagios插件 
tar xzf nagios-plugins-1.4.11.tar.gz 
cd nagios-plugins-1.4.11 
./configure --with-nagios-user=nagios
--with-nagios-group=nagios 
make 
make install 
 
5.启动Nagios 
＃配置机器启动时自动启动Nagios 
chkconfig --add nagios 
chkconfig nagios on 
＃检查Nagios配置文件 
/usr/local/nagios/bin/nagios -v
/usr/local/nagios/etc/nagios.cfg 
＃启Nnagios 
service nagios start 
 
6.SELinux及防火墙设置 
1).关闭SELinux 
vi /etc/selinux/config 
# 将下面行设为disabled 
SELINUX=disabled 
＃重启系统 
2).如果开启防火墙，应该允许访问apache（一般为80端口）并允许nagios去抓取被监控机信息（一般nrpe为5666端口）。 

 
7.访问Nagios服务器 
http://localhost/nagios/ 
输入用户名及密码登录。 
 
8.安装nrpe插件，用来监控Linux机器 
tar xzvf nrpe-2.12.tar.gz 
cd nrpe-2.12 
./configure 
make all 
＃在Nagios服务器端只要安装nrpe监控插件就行 
make install-plugin 
在/usr/local/nagios/etc/objects/commands.cfg中定义check_nrpe命令 
vi /usr/local/nagios/etc/objects/commands.cfg 
######################################################################## 

# 
# 2008.11.18 add by Stone 
# NRPE COMMAND 
# 
######################################################################## 

# 'check_nrpe ' command definition 
define command{ 
       
command_name check_nrpe 
       
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ 
       
} 
 
 
9.在被监控服务器（Linux/unix）上安装Nagios-plugins和nrpe 
useradd nagios 
tar xzvf nagios-plugins-1.4.13.tar.gz 
cd nagios-plugins-1.4.13 
＃ Nagios-plugins默认安装到/usr/local/nagios 
./configure 
make 
make install 
chown nagios.nagios /usr/local/nagios/ 
chown -R nagios.nagios /usr/local/nagios/libexec/ 
 
tar xzvf nrpe-2.12.tar.gz 
cd nrpe-2.12 
./configure 
make all 
＃安装nrpe插件，本监控端可以不装 
make install-plugin 
# 安装nrpe守护进程 
make install-daemon 
＃安张nrpe配置文件 
make install-daemon-config 
＃修改nrpe配置文件，允许Nagios监控服务器（192.168.0.19）监控 
vi nrpe.cfg 
＃多台机器用逗号隔开 
allowed_hosts=127.0.0.1,192.168.0.19 
＃以独立守护进程启动nrpe，也可以使用xinetd启动nrpe，具体清查看nrpe官方文档。 
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
-d 
＃开机自动启动nrpe 
vi /etc/rc.d/rc.local 
＃加入下面行 
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
-d 
＃检查nrpe是否安装正常 
[root@wiki etc]# /usr/local/nagios/libexec/check_nrpe -H
localhost 
NRPE v2.12 
＃返回nrpe版本说明安装没问题。 
＃查看启动端口 
[root@wiki ~]# netstat -tunlp 
Active Internet connections (only servers) 
Proto Recv-Q Send-Q Local
Address              
Foreign
Address            
State      
PID/Program name   
tcp       
0     
0
0.0.0.0:5666               
0.0.0.0:*                  
LISTEN     
27387/nrpe  
如果有防火墙应该开放5666端口： 
iptables -I eth0 -p tcp -m tcp –dport 5666 -j ACCEPT 
 
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ 
注意：我们需要在/usr/local/nagios/etc/nrpe.cfg中定义我们用到的监控本地资源的命令。 
下面的命令是默认定义的： 
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c
10 
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5
-c 30,25,20 
command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c
10% -p /dev/hda1 
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs
-w 5 -c 10 -s Z 
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w
150 -c 200 
下面的命令是自己定义的： 
＃监控交换分区的使用情况，使用超过20％时为警告状态，超过10％时为严重状态 
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c
10% 
＃监控根分区磁盘使用情况 
command[check_disk_root]=/usr/local/nagios/libexec/check_disk -w
20% -c 10% -p / 
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ <div class="articleTitle">
<div style="display: inline;">
Nagios3.0.5在CentOS5.2中安装（二）(2008-11-27 16:12:48)</div></div>
<div class="articleTag">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<script>
var $tag='nagios,monitor,cacti,centos,监控,it';
var $tag_code='37761662cb99aa65bbb4491f5828c71c';
</script>
标签：<a href="http://uni.sina.com.cn/c.php?t=blog&k=nagios&ts=bpost&stype=tag" class="tag" target="_blank">nagios</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=monitor&ts=bpost&stype=tag" class="tag" target="_blank">monitor</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=cacti&ts=bpost&stype=tag" class="tag" target="_blank">cacti</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=centos&ts=bpost&stype=tag" class="tag" target="_blank">centos</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=%BC%E0%BF%D8&ts=bpost&stype=tag" class="tag" target="_blank">监控</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=it&ts=bpost&stype=tag" class="tag" target="_blank">it</a> 
</td>
<td valign="top" width="250" align="right">分类：<a href="http://blog.sina.com.cn/s/articlelist_1312968225_1_1.html">网络监控</a></td>
</tr></tbody>
</table>
</div>
<div class="articleContent" id="articleBody">
10.Nagios如何监控Linux机器 
<a href="http://photo.blog.sina.com.cn/showpic.html#blogid=4e424e210100b6vj&url=http://static4.photo.sina.com.cn/orignal/4e424e21g5ca78a069af3" target="_blank"><img src="http://static4.photo.sina.com.cn/bmiddle/4e424e21g5ca78a069af3"></a> 

 
NRPE总共由两部分组成: 
(1).check_nrpe插件,运行在监控主机上。 
(2).NRPE daemon,运行在远程的linux主机上(通常就是被监控机) 
按照上图,整个的监控过程如下: 
当Nagios需要监控某个远程linux主机的服务或者资源情况时： 
1).nagios会运行check_nrpe插件,我们要在nagios配置文件中告诉它要检查什么. 
2).check_nrpe插件会通过SSL连接到远程的NRPE daemon. 
3).NRPE daemon会运行相应的nagios插件来执行检查本地资源或服务. 
4).NRPE daemon将检查的结果返回给check_nrpe插件,插件将其递交给nagios做处理. 
注意:NRPE daemon需要nagios插件安装在远程被监控linux主机上,否则,daemon不能做任何的监控. 
 
11.Nagios的配置文件 
＃控制cgi访问的配置文件 
cgi.cfg 
＃ Nagios主配置文件 
nagios.cfg 
＃ resource.cfg定义了一些变量，以便被其他文件引用，如$USER1$ 
resource.cfg 
# objects是一个目录，用于定义Nagios对象 
objects 
# servers是自己创建的一个目录，Nagios可以加载一个目录下面的所有配置文件（需要在nagios.cfg中配置） 
servers 
 
./objects: 
＃命令定义配置文件，里面定义的命令可以被其他文件引用 
commands.cfg 
＃联系人和联系人组配置文件 
contacts.cfg 
＃监控本地机器的配置文件 
localhost.cfg 
＃监控打印机的一个事例配置文件（默认未启用） 
printer.cfg 
＃监控路由器的一个事例配置文件（默认未启用） 
switch.cfg 
＃模板配置文件，在此可以定义模板，在其他文件中引用 
templates.cfg 
＃定义监控时间段的配置文件 
timeperiods.cfg 
＃监控Windows的一个事例配置文件（默认未启用） 
windows.cfg 
 
./servers: 
＃自己创建的主机群组配置文件 
hostgroup.cfg 
＃自己创建的监控远程Linux主机的配置文件 
wiki-l-11.cfg 
 
配置文件是怎样引用的？
<a href="http://photo.blog.sina.com.cn/showpic.html#blogid=4e424e210100b6vj&url=http://static1.photo.sina.com.cn/orignal/4e424e21g5ca78d1f1690" target="_blank"><img src="http://static1.photo.sina.com.cn/bmiddle/4e424e21g5ca78d1f1690"></a>
 
用nagios主要是监控一台主机的各种信息,包括本机资源以及对外的服务等等.这些在nagios里面都是被定义为一个个的项目(nagios称之为服
务,为了与主机提供的服务相区别,我这里用项目这个词),而实现每个监控项目,则需要通过commands.cfg文件中定义的命令。 

为了不必重复定义一些项目，Nagios引入了一个模板配置文件（templates.cfg），将一些共性的属性定义成模板，以便于多次引用。 

我们现在有一个监控项目是监控一台机器的web服务是否正常,
我们需要哪些元素呢?最重要的有下面三点:首先是监控哪台机器,然后是这个监控要用什么命令实现,最后就是出了问题的时候要通知哪个联系人。 

我们首先应该在commands.cfg中定义监控远程服务和资源的命令，以及如何发送邮件的命令。大部分监控远程服务和资源的命令的命令通过/usr/local/nagios/libexec下的脚本实现，如ping命令为check_ping。 

/usr/local/nagios/libexec下的脚本命令的使用发法可以通过-h参数查看，如： 
----------------------------------------------------------------------------------------- 

[root@tech ~]# /usr/local/nagios/libexec/check_ping -h 
check_ping v1991 (nagios-plugins 1.4.13) 
Copyright (c) 1999 Ethan Galstad
<nagios@nagios.org> 
Copyright (c) 2000-2007 Nagios Plugin Development Team 
  
 <nagiosplug-devel@lists.sourceforge.net> 

 
Use ping to check connection statistics for a remote host. 
 
Usage:check_ping -H <host_address> -w
<wrta>,<wpl>%
-c
<crta>,<cpl>% 

 [-p packets] [-t timeout] [-4|-6] 
 
Options: 
 -h, --help 
    Print
detailed help screen 
 -V, --version 
    Print
version information 
 -4, --use-ipv4 
    Use IPv4
connection 
 -6, --use-ipv6 
    Use IPv6
connection 
 -H, --hostname=HOST 
    host to
ping 
 -w, --warning=THRESHOLD 
    warning
threshold pair 
 -c, --critical=THRESHOLD 
    critical
threshold pair 
 -p, --packets=INTEGER 
    number of
ICMP ECHO packets to send (Default: 5) 
 -L, --link 
    show HTML in
the plugin output (obsoleted by urlize) 
 -t, --timeout=INTEGER 
    Seconds
before connection times out (default: 10) 
----------------------------------------------------------------------------------------- 

然后我们在contacts.cfg文件中定义联系人和联系人组，在timeperiods.cfg中定义监控时间段。最后我们在服务器监控配置文件中引用前面定义的元素来监控服务器状态。 

 
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ 

下面引用配置文件中部分配置做说明： 
vi /usr/local/nagios/etc/resource.cfg 
＃定义$USER1$变量，设置插件路径 
$USER1$=/usr/local/nagios/libexec 
 
vi /usr/local/nagios/etc/objects/commands.cfg 
＃定义check-host-alive命令 
define command{ 
       
command_name   
check-host-alive  ＃命令名称 
       
command_line   
$USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p
5 
       
} 
＃上面的$USER1$和$HOSTADDRESS$引用自已定义的配置文件。变量不需现定义才能被引用。 
######################################################################## 

# 
# 2008.11.18 add by Stone 
# NRPE COMMAND 
# 自己定义check_nrpe命令，此命令后接必需接一个参数，用于告诉远程服务器上的NRPE
daemon需要监控的内容，如check_swap参数为监控远程机器的交换分区。 
######################################################################## 

# 'check_nrpe ' command definition 
define command{ 
       
command_name check_nrpe 
       
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ 
       
} 
 
 
vi /usr/local/nagios/etc/objects/contacts.cfg 
＃定义联系人 
define contact{ 
       
contact_name                   
nagiosadmin            
; Short name of user 
       
use                            
generic-contact        
; Inherit default values from generic-contact template (defined
above) 
       
alias                          
Nagios
Admin           
; Full name of user 
 
       
email                          
test@gmaile.com        
; <<***** CHANGE THIS TO YOUR EMAIL
ADDRESS ****** 
       
} 
＃上面的generic-contact在templates.cfg中定义。 
＃定义联系人组 
define contactgroup{ 
       
contactgroup_name      
admins 
       
alias                  
Nagios Administrators 
       
members                
nagiosadmin  
＃在此可以加入多个联系人，中间用逗号隔开 
       
} 
 
vi /usr/local/nagios/etc/objects/timeperiods.cfg 
＃定义监控的时间段 
define timeperiod{ 
       
timeperiod_name 24x7  
＃监控所有时间段（7＊24小时） 
       
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 
       
} 
 
vi /usr/local/nagios/etc/objects/templates.cfg 
＃定义generic-contact联系人模板，并非真正的联系人，真正的联系人在contacts.cfg中定义 
define contact{ 
       
name                           
generic-contact        
; The name of this contact template 
       
service_notification_period    
24x7                   
; service notifications can be sent anytime 
       
host_notification_period       
24x7                   
; host notifications can be sent anytime 
       
service_notification_options   
w,u,c,r,f,s            
; send notifications for all service states, flapping events, and
scheduled downtime events 
       
host_notification_options      
d,u,r,f,s              
; send notifications for all host states, flapping events, and
scheduled downtime events 
       
service_notification_commands  
notify-service-by-email ; send service notifications via
email 
       
host_notification_commands     
notify-host-by-email   
; send host notifications via email 
       
register                       
0                      
; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A
TEMPLATE! 
       
} 
------------------------------------------------------------------------------------------------------------------ 

service_notification_period    
24x7 
服务出了状况通知的时间段,这个时间段就是上面在timeperiods.cfg中定义的. 
host_notification_period       
24x7 
主机出了状况通知的时间段, 这个时间段就是上面在timeperiods.cfg中定义的 
service_notification_options   
w,u,c,r 
当服务出现w—报警(warning),u—未知(unkown),c—严重(critical),或者r—从异常情况恢复正常,在这四种情况下通知联系人. 

host_notification_options      
d,u,r 
当主机出现d—当机(down),u—返回不可达(unreachable),r—从异常情况恢复正常,在这3种情况下通知联系人 

service_notification_commands  
notify-service-by-email 
服务出问题通知采用的命令notify-service-by-email,这个命令是在commands.cfg中定义的,作用是给联系人发邮件. 

host_notification_commands     
notify-host-by-email 
同上,主机出问题时采用的也是发邮件的方式通知联系人 
------------------------------------------------------------------------------------------------------------------ 

 
＃定义generic-host主机模板 
define host{ 
       
name                           
generic-host   
; The name of this host template 
       
notifications_enabled          
1              
; Host notifications are enabled 
       
event_handler_enabled          
1              
; Host event handler is enabled 
       
flap_detection_enabled         
1              
; Flap detection is enabled 
       
failure_prediction_enabled     
1              
; Failure prediction is enabled 
       
process_perf_data              
1              
; Process performance data 
       
retain_status_information      
1              
; Retain status information across program restarts 
       
retain_nonstatus_information   
1              
; Retain non-status information across program restarts 
       
notification_period            
24x7           
; Send host notifications at any time 
       
register                       
0              
; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A
TEMPLATE! 
       
} 
 
＃定义Linux主机模板 
define host{ 
       
name                           
linux-server   
; The name of this host template 
       
use                            
generic-host   
; This template inherits other values from the generic-host
template 
       
check_period                   
24x7           
; By default, Linux hosts are checked round the clock 
       
check_interval                 
5              
; Actively check the host every 5 minutes 
       
retry_interval                 
1              
; Schedule host check retries at 1 minute intervals 
       
max_check_attempts             
10             
; Check each Linux host 10 times (max) 
       
check_command                  
check-host-alive ; Default command to check Linux hosts 
       
notification_period            
workhours      
; Linux admins hate to be woken up, so we only notify during the
day 
                                                       
; Note that the notification_period variable is being overridden
from 
                                                       
; the value that is inherited from the generic-host template! 
       
notification_interval          
120            
; Resend notifications every 2 hours 
       
notification_options           
d,u,r          
; Only send notifications for specific host states 
       
contact_groups                 
admins         
; Notifications get sent to the admins by default 
       
register                       
0              
; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A
TEMPLATE! 
       
} 
 
＃在nagios.cfg配置文件中开启对/usr/local/nagios/etc/servers/中配置文件的引用。 
cfg_dir=/usr/local/nagios/etc/servers 
 
＃远程Linux主机监控文件，如果监控多台主机只需简单复制修改即可。 
＃我们应该牢记wiki-l-11.cfg用到的命令在commands.cfg中定义，在commands.cfg中定义的命令用到/usr/local/nagios/libexec下的插件（命令）。 

vi /usr/local/nagios/etc/servers/wiki-l-11.cfg 
＃定义主机 
define host{ 
       
use                    
linux-server           
; Name of host template to use 
                                                       
; This host definition will inherit all variables that are
defined 
                                                       
; in (or inherited by) the linux-server host template
definition. 
       
host_name              
wiki 
       
alias                  
Docs 
       
address                
192.168.0.11 
       
} 
＃定义Ping远程Linux主机 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
PING 
       
check_command                  
check_ping!100.0,20%!500.0,60%  
;check_ping命令在commands.cfg中定义，后跟两个参数，命令及参数间用!分割。 
       
} 
＃检查远程Linux主机根分区使用情况，check_nrpe命令必须在/usr/local/nagios/etc/objects/commands.cfg中定义（默认未定义） 

define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
Root Partition 
       
check_command                  
check_nrpe!check_disk_root 
       
} 
＃检查远程Linux主机的登录人数 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
Current Users 
       
check_command                  
check_nrpe!check_users 
       
} 
＃检查远程Linux的主机的负载 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
Current Load 
       
check_command                  
check_nrpe!check_load 
       
} 
＃检查远程Linux主机swap分区使用情况 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
Swap Usage 
       
check_command                  
check_nrpe!check_swap 
       
} 
＃检查远程Linux主机的SSH服务 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
SSH 
       
check_command                  
check_ssh 
       
notifications_enabled          
0 
       
} 
＃检查远程Linux主机的HTTP服务 
define service{ 
       
use                            
generic-service        
; Name of service template to use 
       
host_name                      
wiki 
       
service_description            
HTTP 
       
check_command                  
check_http 
       
notifications_enabled          
0 
       
} 
 
vi /usr/local/nagios/etc/servers/hostgroup.cfg 
＃定义主机组（localhost.cfg中有类似的主机组设置，我已将其注释掉，否则可能会有冲突） 
define hostgroup{ 
       
hostgroup_name  linux-servers ; The name of the
hostgroup 
       
alias          
Linux Servers ; Long name of the group 
       
members        
localhost,wiki    
; Comma separated list of hosts that belong to this group 
       
} 
 
#define hostgroup{ 
#       
hostgroup_name  windows-servers ; The name of the
hostgroup 
#       
alias          
Windows Servers ; Long name of the group 
#       
members        
print    
; Comma separated list of hosts that belong to this group 
#       
} 
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ 

＃完成监控主机配置文件的配置后使用下面命令检查配置文件的正确性： 
/usr/local/nagios/bin/nagios -v
/usr/local/nagios/etc/nagios.cfg 
＃确定无误后重启Nagios： 
service nagios restart <div class="articleTitle">
<div style="display: inline;">
Nagios3.0.5在CentOS5.2中安装（三）(2008-11-27 16:14:38)</div></div>
<div class="articleTag">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<script>
var $tag='nagios,monitor,cacti,centos,监控,it';
var $tag_code='7c2aac47d5d5b0b5ce9ee5aecb99392f';
</script>
标签：<a href="http://uni.sina.com.cn/c.php?t=blog&k=nagios&ts=bpost&stype=tag" class="tag" target="_blank">nagios</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=monitor&ts=bpost&stype=tag" class="tag" target="_blank">monitor</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=cacti&ts=bpost&stype=tag" class="tag" target="_blank">cacti</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=centos&ts=bpost&stype=tag" class="tag" target="_blank">centos</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=%BC%E0%BF%D8&ts=bpost&stype=tag" class="tag" target="_blank">监控</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=it&ts=bpost&stype=tag" class="tag" target="_blank">it</a> 
</td>
<td valign="top" width="250" align="right">分类：<a href="http://blog.sina.com.cn/s/articlelist_1312968225_1_1.html">网络监控</a></td>
</tr></tbody>
</table>
</div>

使用Nagios监控Windows服务器
 
12.Nagios使用NSClient++监控远程Windows主机
<a href="http://photo.blog.sina.com.cn/showpic.html#blogid=4e424e210100b6vk&url=http://static7.photo.sina.com.cn/orignal/4e424e21g5ca79d354ac6" target="_blank"><img src="http://static7.photo.sina.com.cn/bmiddle/4e424e21g5ca79d354ac6"></a>
 
下载NSClient++-Win32-0.3.5.msi并安装。 
到安装目录打开NSC.ini文件进行修改： 
在[modules]模块，将除CheckWMI.dll和RemoteConfiguration.dll外的所有dll文件明前的注释（;)去掉。 
在[Settings]模块可以设置一个连接密码password=PWD，为了简单，在此不设密码。设置
allowed_hosts=127.0.0.1/32,192.168.0.19，可以连接的监控服务器的地址，如果写成192.168.0.0/24
则表示该子网内的所有机器都可以访问；如果这个地方是空白则表示所有的主机都可以连接上来（注意在[NSClient]有allowed_hosts的同
样设置，不要设置错了），最后不要忘记去掉前面的注释符（;）。 

运行nsclient＋＋ 
 NSClient++ /install 
 NSClient++ SysTray install 
 NSClient++ /start 
如果有防火墙，请开放相应端口。 
创建监控配置文件，使用check_nt命令监控windows系统信息（此命令默认已定义）。 
 
Ｗindows监控示例配置文件： 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 

[root@tech etc]# cat
/usr/local/nagios/etc/servers/print-w-80.cfg 
############################################################################### 

# WINDOWS.CFG - SAMPLE CONFIG FILE FOR MONITORING A WINDOWS
MACHINE 
# 
# Last Modified: 06-13-2007 
# 
# NOTES: This config file assumes that you are using the sample
configuration 
#     files that
get installed with the Nagios quickstart guide. 
# 
############################################################################### 

 
 
 
############################################################################### 

############################################################################### 

# 
# HOST DEFINITIONS 
# 
############################################################################### 

############################################################################### 

 
# Define a host for the Windows machine we'll be monitoring 
# Change the host_name, alias, and address to fit your
situation 
 
define host{ 
  
 use  
   
 windows-server  
 ; Inherit default values from a template 
  
 host_name  
 print80  
   
 ; The name we're giving to this host 
  
 alias  
   
 Print80  
   
 ; A longer name associated with the host 
  
 address  
   
 192.168.0.80  
 ; IP address of the host 
    } 
 
############################################################################### 

############################################################################### 

# 
# HOST GROUP DEFINITIONS 
# 主机组在/usr/local/nagios/etc/servers/hostgroup.cfg中单独配置 
############################################################################### 

############################################################################### 

 
 
# Define a hostgroup for Windows machines 
# All hosts that use the windows-server template will automatically
be a member of this group 
 
#define hostgroup{ 
#  
 hostgroup_name  
 windows-servers  
 ; The name of the hostgroup 
#  
 alias  
   
 Windows
Servers    ;
Long name of the group 
#    } 
 
 
############################################################################### 

############################################################################### 

# 
# SERVICE DEFINITIONS 
# 
############################################################################### 

############################################################################### 

 
 
# Create a service for monitoring the version of NSCLient++ that is
installed 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 NSClient++ Version 
  
 check_command  
   
 check_nt!CLIENTVERSION 
    } 
 
# Create a service for monitoring the uptime of the server 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 Uptime 
  
 check_command  
   
 check_nt!UPTIME 
    } 
 
# Create a service for monitoring CPU load 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 CPU Load 
  
 check_command  
   
 check_nt!CPULOAD!-l 5,80,90 
    } 
 
# Create a service for monitoring 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 Memory Usage 
  
 check_command  
   
 check_nt!MEMUSE!-w 80 -c 90 
    } 
 
# Create a service for monitoring C:\ disk usage 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 C_Drive_Space 
  
 check_command  
   
 check_nt!USEDDISKSPACE!-l c -w 80 -c 90 
    } 
 
# Create a service for monitoring the W3SVC service 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 W3SVC 
  
 check_command  
   
 check_nt!SERVICESTATE!-d SHOWALL -l W3SVC 
    } 
 
# Create a service for monitoring the Explorer.exe process 
# Change the host_name to match the name of the host you defined
above 
 
define service{ 
  
 use  
   
   
 generic-service 
  
 host_name  
   
 print80 
  
 service_description  
 Explorer 
  
 check_command  
   
 check_nt!PROCSTATE!-d SHOWALL -l
Explorer.exe 
    } 
 
＃主机组配置文件 
[root@tech etc]# cat
/usr/local/nagios/etc/servers/hostgroup.cfg 
define hostgroup{ 
       
hostgroup_name  linux-servers ; The name of the
hostgroup 
       
alias          
Linux Servers ; Long name of the group 
       
members        
localhost,wiki    
; Comma separated list of hosts that belong to this group 
       
} 
 
define hostgroup{ 
       
hostgroup_name  windows-servers ; The name of the
hostgroup 
       
alias          
Windows Servers ; Long name of the group 
       
members        
print80    
; Comma separated list of hosts that belong to this group 
       
} 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <div class="articleTitle">
<div style="display: inline;">
Nagios3.0.5在CentOS5.2中安装（四）(2008-11-27 16:41:17)</div></div>
<div class="articleTag">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<script>
var $tag='nagios,monitor,cacti,centos,监控,it';
var $tag_code='9fa4287fab03073a7e73e6abaaa27c6a';
</script>
标签：<a href="http://uni.sina.com.cn/c.php?t=blog&k=nagios&ts=bpost&stype=tag" class="tag" target="_blank">nagios</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=monitor&ts=bpost&stype=tag" class="tag" target="_blank">monitor</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=cacti&ts=bpost&stype=tag" class="tag" target="_blank">cacti</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=centos&ts=bpost&stype=tag" class="tag" target="_blank">centos</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=%BC%E0%BF%D8&ts=bpost&stype=tag" class="tag" target="_blank">监控</a> <a href="http://uni.sina.com.cn/c.php?t=blog&k=it&ts=bpost&stype=tag" class="tag" target="_blank">it</a> 
</td>
<td valign="top" width="250" align="right">分类：<a href="http://blog.sina.com.cn/s/articlelist_1312968225_1_1.html">网络监控</a></td>
</tr></tbody>
</table>
</div>

使用NDOUtils将Nagios监控信息存入数据库
 
1.NDOUtils安装需求： 
Nagios正确安装运行，版本>=2.0安装目录：/usr/local/nagios 
MySQL正确安装并运行，我用的是二进制安装包，安装目录：/usr/local/mysql 
<a href="http://photo.blog.sina.com.cn/showpic.html#blogid=4e424e210100b6vu&url=http://static16.photo.sina.com.cn/orignal/4e424e21g5ca7d9d89d9f" target="_blank"><img src="http://static16.photo.sina.com.cn/bmiddle/4e424e21g5ca7d9d89d9f">
</a>
 
2.安装 
下载安装包：http://www.nagios.org/download/ 
#　确认DBD-mysql包安装，如没有安装，请先安装。 
# 如果DBI包没安装DBD-mysql前需要先安装DBI包 
tar xzvf DBI-1.605.tar.gz 
cd DBI-1.605 
perl Makefile.PL 
make 
make install 
 
tar xzvf DBD-mysql-3.0008.tar.gz 
cd DBD-mysql-3.0008 
unset LANG 
perl Makefile.PL --libs="-L/usr/local/mysql/lib/mysql -lmysqlclient
-L/usr/lib -lz "
--cflags="-I/usr/local/mysql/include" 
--testhost=127.0.0.1
--mysql_config=/usr/local/mysql/bin/mysql_config --testuser=root
--testpassword=baihe.com 
make 
make install 
 
#　做好MySQL库文件lib和include文件的连接（这点很重要）。 
ln -s /usr/local/mysql/include/* /usr/include/ 
mkdir /usr/include/mysql 
ln -s /usr/local/mysql/include/* /usr/include/mysql/ 
ln -s /usr/local/mysql/lib/* /usr/lib/ 
mkdir /usr/lib/mysql 
ln -s /usr/local/mysql/lib/* /usr/lib/mysql 
 
tar xzvf ndoutils-1.4b7.tar.gz 
cd ndoutils-1.4b7 
./configure --enable-mysql 
#　执行完成后，注意向上看看打印出的信息，看看是否找到了MySQL的库文件和include文件。 
make 
cd src/ 
#　我的Nagios是3.0.5，所以拷贝的是ndomod-3x.o、ndo2db-3x，如果你的是2.X.x请拷贝ndomod-2x.o、ndo2db-2x 

cp ndomod-3x.o ndo2db-3x log2ndo file2sock
/usr/local/nagios/bin 
cd ../db 
#　创建数据库，使用root用户，密码是baihe.com 
mysqladmin -u root -pbaihe.com create nagios 
./installdb -u root -p baihe.com -d nagios 
#　拷贝配置文件 
cd ../config 
cp ndo* /usr/local/nagios/etc/ 
#　修改/usr/local/nagios/etc/ndo2db.cfg文件的数据库信息。 
vi /usr/local/nagios/etc/ndo2db.cfg 
vi nagios.cfg 
#　复制下面内容粘贴到/usr/local/nagios/etc/nagios.cfg配置文件的#broker_module＝...下面。 

# Uncomment the line below if you're running Nagios 3.x 
broker_module=/usr/local/nagios/bin/ndomod-3x.o
config_file=/usr/local/nagios/etc/ndomod.cfg 
#　修改/usr/local/nagios/etc/nagios.cfg配置文件下面参数的值为-1（一般默认如此）。 
event_broker_options=-1 
 
# 启动ndo2db 
/usr/local/nagios/bin/ndo2db-3x -c
/usr/local/nagios/etc/ndo2db.cfg 
# 查看系统日志是否有错误信息： 
tail -30 /var/log/messages 
Nov 27 14:09:26 tech nagios: ndomod: NDOMOD 1.4b7 (10-31-2007)
Copyright (c) 2005-2007 Ethan Galstad (nagios@nagios.org) 
Nov 27 14:09:26 tech nagios: ndomod: Successfully connected to data
sink.  0 queued items to flush. 
Nov 27 14:09:26 tech nagios: Event broker module
'/usr/local/nagios/bin/ndomod-3x.o' initialized successfully. 
Nov 27 14:09:26 tech nagios: Finished daemonizing... (New
PID=18848) 
# 重启Nagios 
service nagios restart 
# 查看Nagios日志，看是否正常启动。 
tail -20 /usr/local/nagios/var/nagios.log 
[1227766166] ndomod: NDOMOD 1.4b7 (10-31-2007) Copyright (c)
2005-2007 Ethan Galstad (nagios@nagios.org) 
[1227766166] ndomod: Successfully connected to data
sink.  0 queued items to flush. 
[1227766166] Event broker module
'/usr/local/nagios/bin/ndomod-3x.o' initialized successfully. 
[1227766166] Finished daemonizing... (New PID=18848)
 
3.如何用NDOUtils将多个Nagios实例的性能数据写入一个数据库？
<a href="http://photo.blog.sina.com.cn/showpic.html#blogid=4e424e210100b6vu&url=http://static14.photo.sina.com.cn/orignal/4e424e21t5d6cd6fa2b1d" target="_blank"><img src="http://static14.photo.sina.com.cn/bmiddle/4e424e21t5d6cd6fa2b1d"></a>

配置方法类似于上面的单实例单数据库模式，只是在装第二个实例时省去安装DB一步，并需要修改/usr/local/nagios/etc/ndomod.cfg中的实例名。 

实例名默认为instance_name=default，如果有多个实例必需修改成不同的实例名。 
如：instance_name=nagios1 
注意修改/usr/local/nagios/etc/ndo2db.cfg中数据库连接的相关配置。


</div> 
</div>

頁: [1]

查看完整版本: [轉貼]nagios3.0.5在centos 5.2上安裝