Centos 5 配置nagios监控系统
本文共 7278 字，大约阅读时间需要 24 分钟。
我们的网络和服务器要被细心的照看，要不然你会有很多麻烦的 
还是找个工具来帮助我们管理这些让人牵挂的机器吧----nagios
在这里简单的配置了一下监控主机，深入的配置需要多多学习，网上的资料很多
下面简单的写出来我自己的配置，也许有不对的地方，请指出，谢谢，您的参阅
1、创建nagios用户
adduser nagios
mkdir /usr/local/nagios
chown nagios.nagios /usr/local/nagios
3、解压下载的安装包
tar xzvf nagios-version.tar.gz
2、编译
进入到解压目录执行
./configure --prefix=/usr/local/nagios
--with-nagios-user=nagios
--with-nagios-group=nagios
--with-command-group= nagios
make all
make install
make install-config
make install-init
nagios安装完成
3、创建访问nagios的认证用户
/usr/bin/htpasswd -c /usr/local/nagios/etc/htpasswd andy
按照提示设置密码。
Apache已经安装好 到目录/usr/local/apache/
4、将nagios的信息加到apache中，打开/usr/local/apache/conf/httpd.conf文件，在文件最后添加如下代码：
ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin
<Directory "/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
</Directory>
Alias /nagios /usr/local/nagios/share
<Directory "/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
</Directory>
5、重启apache
访问nagios http://IP/nagios
6、插件安装
本文中用到的是 nagios-plugins-1.4.13.tar.gz
解压缩
Tar zxvf nagios-plugins-1.4.13.tar.gz
进入到解压缩目录nagios-plugins-1.4.13
编译
./configure –prefix=/usr/local/nagios #和nagios安装目录相同
安装
Make
Make install
7、nagios 具体配置
（一）
首先编辑/usr/local/nagios/etc/objects/localhost.cfg、我把要监控的主机都放在localhost.cfg文件中
================================================
定义要监控的主机 （oracle.test.com、CVS）
define host{
use linux-server
host_name oracle.test.com
alias Database
address 192.168.1.176
contact_groups admins
parents routergw
icon_image server.gif
statusmap_image server.gd2
2d_coords 500,200
3d_coords 500,200,100
}
define host{
use linux-server
host_name CVS
alias CVS
address 192.168.1.183
contact_groups admins
parents routergw
icon_image server.gif
statusmap_image server.gd2
2d_coords 500,200
3d_coords 500,200,100
}
================================================
定义主机组和服务组
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members * ; Comma separated list of hosts that belong to this group
}
define servicegroup{
servicegroup_name linuxserv
alias services
members oracle.test.com,SSH,oracle.test.com,PING,oracle.test.com,disk,CVS,PING,CVS,disk,CVS,SSH
}
================================================
定义要监控的服务
define service{
use local-service
host_name oracle.test.com,CVS
service_description PING
check_command check_ping!100.0,20%!500.0,60%
notifications_enabled 1
}
# Define a service to check the disk space of the root partition
# on the local machine. Warning if < 20% free, critical if
# < 10% free space on partition.
define service{
use local-service te
host_name oracle.test.com,CVS
service_description disk
check_command check_local_disk!20%!10%!/
notifications_enabled 1
}
define service{
use local-service
host_name oracle.test.com,CVS
service_description users
check_command check_local_users!20!50
notifications_enabled 1
}
# Define a service to check the number of currently running procs
# on the local machine. Warning if > 250 processes, critical if
# > 400 users.
define service{
use local-service
host_name oracle.test.com,CVS
service_description procs
check_command check_local_procs!250!400!RSZDT
notifications_enabled 1
}
# Define a service to check the load on the local machine.
define service{
use local-service
host_name oracle.test.com,CVS
service_description local_load
check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
notifications_enabled 1
}
define service{
use local-service
host_name oracle.test.com,CVS
service_description swap
check_command check_local_swap!20!10
notifications_enabled 1
}
# Define a service to check SSH on the local machine.
# Disable notifications for this service by default, as not all users may have SSH enabled.
define service{
use local-service
host_name oracle.test.com,CVS
service_description SSH
check_command check_tcp!22!1.0!10.0
notifications_enabled 1
}
# Define a service to check HTTP on the local machine.
# Disable notifications for this service by default, as not all users may have HTTP enabled.
define service{
use local-service
host_name oracle.test.com
service_description HTTP
check_command check_http
notifications_enabled 1
}
================================================
（二）编辑联系人/usr/local/nagios/etc/objects/contacts.cfg
define contact{
contact_name nagiosadmin
use generic-contact
alias Nagios Admin
service_notification_commands notify-service-by-sms, notify-service-by-email
host_notification_commands notify-host-by-sms, notify-service-by-email
email andylhz@XX.com 紧急事件发送邮件地址
pager 138***** 紧急事件发送手机短信号码
}
===============================================
（三）编辑/usr/local/nagios/etc/objects/commands.cfg 命令定义文件
定义服务命令
define command{
command_name notify-service-by-sms
command_line /usr/bin/sms -f 138******5 -p ****** -t $CONTACTPAGER$ -m "$HOSTNAME$ $SERVICEDESC$ is $SERVICESTATE$on $TIME$ result is$SERVICEOUTPUT$" $CONTACTPAGER$
}
定义主机命令
define command{
command_name notify-host-by-sms
command_line /usr/bin/sms -f 138******5 -p ****** -t $CONTACTPAGER$ -m "Host $HOSTSTATE$ alert for $HOSTNAME$! on '$DATETIME$' " $CONTACTPAGER$
}
===============================================
注意：：上面的发送短信程序sms 需要单独安装，网上很多，在此不做说明
测试配置是否正确
/usr/local/nagios/bin/nagios –v /usr/local/nagios/etc/nagios.cfg
如果没有问题的话回有如下的显示那就表是没有问题了
Nagios Core 3.2.0
Copyright (c) 2009 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-12-2009
License: GPL
Website: http://www.nagios.org
Reading configuration data...
Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/localhost.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/switch.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 16 services.
Checking hosts...
Checked 3 hosts.
Checking host groups...
Checked 2 host groups.
Checking service groups...
Checked 1 service groups.
Checking contacts...
Checked 1 contacts.
Checking contact groups...
Checked 1 contact groups.
Checking service escalations...
Checked 0 service escalations.
Checking service dependencies...
Checked 0 service dependencies.
Checking host escalations...
Checked 0 host escalations.
Checking host dependencies...
Checked 0 host dependencies.
Checking commands...
Checked 26 commands.
Checking time periods...
Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0
启动 nagios
service nagios start
还是找个工具来帮助我们管理这些让人牵挂的机器吧----nagios 在这里简单的配置了一下监控主机，深入的配置需要多多学习，网上的资料很多
下面简单的写出来我自己的配置，也许有不对的地方，请指出，谢谢，您的参阅
1、创建nagios用户
adduser nagios
mkdir /usr/local/nagios
chown nagios.nagios /usr/local/nagios
3、解压下载的安装包
tar xzvf nagios-version.tar.gz
2、编译
进入到解压目录执行
./configure --prefix=/usr/local/nagios
--with-nagios-user=nagios
--with-nagios-group=nagios
--with-command-group= nagios
make all
make install
make install-config
make install-init
nagios安装完成
3、创建访问nagios的认证用户
/usr/bin/htpasswd -c /usr/local/nagios/etc/htpasswd andy
按照提示设置密码。
Apache已经安装好 到目录/usr/local/apache/
4、将nagios的信息加到apache中，打开/usr/local/apache/conf/httpd.conf文件，在文件最后添加如下代码：
ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin
<Directory "/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
</Directory>
Alias /nagios /usr/local/nagios/share
<Directory "/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
</Directory>
5、重启apache
访问nagios http://IP/nagios
6、插件安装
本文中用到的是 nagios-plugins-1.4.13.tar.gz
解压缩
Tar zxvf nagios-plugins-1.4.13.tar.gz
进入到解压缩目录nagios-plugins-1.4.13
编译
./configure –prefix=/usr/local/nagios #和nagios安装目录相同
安装
Make
Make install
7、nagios 具体配置
（一）
首先编辑/usr/local/nagios/etc/objects/localhost.cfg、我把要监控的主机都放在localhost.cfg文件中
================================================
定义要监控的主机 （oracle.test.com、CVS）
define host{
use linux-server
host_name oracle.test.com
alias Database
address 192.168.1.176
contact_groups admins
parents routergw
icon_image server.gif
statusmap_image server.gd2
2d_coords 500,200
3d_coords 500,200,100
}
define host{
use linux-server
host_name CVS
alias CVS
address 192.168.1.183
contact_groups admins
parents routergw
icon_image server.gif
statusmap_image server.gd2
2d_coords 500,200
3d_coords 500,200,100
}
================================================
定义主机组和服务组
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members * ; Comma separated list of hosts that belong to this group
}
define servicegroup{
servicegroup_name linuxserv
alias services
members oracle.test.com,SSH,oracle.test.com,PING,oracle.test.com,disk,CVS,PING,CVS,disk,CVS,SSH
}
================================================
定义要监控的服务
define service{
use local-service
host_name oracle.test.com,CVS
service_description PING
check_command check_ping!100.0,20%!500.0,60%
notifications_enabled 1
}
# Define a service to check the disk space of the root partition
# on the local machine. Warning if < 20% free, critical if
# < 10% free space on partition.
define service{
use local-service te
host_name oracle.test.com,CVS
service_description disk
check_command check_local_disk!20%!10%!/
notifications_enabled 1
}
define service{
use local-service
host_name oracle.test.com,CVS
service_description users
check_command check_local_users!20!50
notifications_enabled 1
}
# Define a service to check the number of currently running procs
# on the local machine. Warning if > 250 processes, critical if
# > 400 users.
define service{
use local-service
host_name oracle.test.com,CVS
service_description procs
check_command check_local_procs!250!400!RSZDT
notifications_enabled 1
}
# Define a service to check the load on the local machine.
define service{
use local-service
host_name oracle.test.com,CVS
service_description local_load
check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
notifications_enabled 1
}
define service{
use local-service
host_name oracle.test.com,CVS
service_description swap
check_command check_local_swap!20!10
notifications_enabled 1
}
# Define a service to check SSH on the local machine.
# Disable notifications for this service by default, as not all users may have SSH enabled.
define service{
use local-service
host_name oracle.test.com,CVS
service_description SSH
check_command check_tcp!22!1.0!10.0
notifications_enabled 1
}
# Define a service to check HTTP on the local machine.
# Disable notifications for this service by default, as not all users may have HTTP enabled.
define service{
use local-service
host_name oracle.test.com
service_description HTTP
check_command check_http
notifications_enabled 1
}
================================================
（二）编辑联系人/usr/local/nagios/etc/objects/contacts.cfg
define contact{
contact_name nagiosadmin
use generic-contact
alias Nagios Admin
service_notification_commands notify-service-by-sms, notify-service-by-email
host_notification_commands notify-host-by-sms, notify-service-by-email
email andylhz@XX.com 紧急事件发送邮件地址
pager 138***** 紧急事件发送手机短信号码
}
===============================================
（三）编辑/usr/local/nagios/etc/objects/commands.cfg 命令定义文件
定义服务命令
define command{
command_name notify-service-by-sms
command_line /usr/bin/sms -f 138******5 -p ****** -t $CONTACTPAGER$ -m "$HOSTNAME$ $SERVICEDESC$ is $SERVICESTATE$on $TIME$ result is$SERVICEOUTPUT$" $CONTACTPAGER$
}
定义主机命令
define command{
command_name notify-host-by-sms
command_line /usr/bin/sms -f 138******5 -p ****** -t $CONTACTPAGER$ -m "Host $HOSTSTATE$ alert for $HOSTNAME$! on '$DATETIME$' " $CONTACTPAGER$
}
===============================================
注意：：上面的发送短信程序sms 需要单独安装，网上很多，在此不做说明
测试配置是否正确
/usr/local/nagios/bin/nagios –v /usr/local/nagios/etc/nagios.cfg
如果没有问题的话回有如下的显示那就表是没有问题了
Nagios Core 3.2.0
Copyright (c) 2009 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-12-2009
License: GPL
Website: http://www.nagios.org
Reading configuration data...
Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/localhost.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/switch.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 16 services.
Checking hosts...
Checked 3 hosts.
Checking host groups...
Checked 2 host groups.
Checking service groups...
Checked 1 service groups.
Checking contacts...
Checked 1 contacts.
Checking contact groups...
Checked 1 contact groups.
Checking service escalations...
Checked 0 service escalations.
Checking service dependencies...
Checked 0 service dependencies.
Checking host escalations...
Checked 0 host escalations.
Checking host dependencies...
Checked 0 host dependencies.
Checking commands...
Checked 26 commands.
Checking time periods...
Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0
启动 nagios
service nagios start
本文转自andylhz 51CTO博客，原文链接：http://blog.51cto.com/andylhz2009/211044，如需转载请自行联系原作者
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