【运维管理】Nagios监控搭建与配置详细步骤
2017-03-26 01:19
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#service nagios start
#/usr/local/apache/sbin/apchectl
访问nagios
http://192.168.6.6/nagios/
(一）安装Nagios （Nagios服务器为：192.168.6.6 Nagios客户端为： 192.168.2.33）
1.基础支持套件：gcc glibc glibc-common gd gd-devel xinetd openssl-devel httpd php 注：php和httpd均用源码包安装，安装配置方法此处不在详述
# yum install -y gcc glibc glibc-common gd gd-devel xinetd openssl-devel
2.创建Nagios账户和组
#useradd -m nagios
#groupadd nagcmd
#usermod -a -G nagcmd nagios
#usermod -a -G nagcmd apache
3.编译安装
#tar xvf nagios-3.5.1.tar.gz
#cd nagios-3.5.1
#./configure prefix=/usr/local/nagios --with-command-group=nagcmd --with-nagios-user=nagios --with-nagios-group=nagios
#make all
#make install
#make install-init （生成init启动脚本）
#make install-config （生成一些模板配置文件）
#make install-commandmode （设置相应的权限）
#make install-webconf （生成Apache配置文件nagios.conf）
4.为Nagios设置Web验证的密码
#/usr/local/apache/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.user nagiosadmin
5.设置Nagios的开机启动
chkconfig --add nagios
chkconfig nagios on
6.安装Nagios的插件nagios-plugin
#tar zxvf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugins-1.4.16
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
--with-apt-get-command --with-ping6-command --with-ping-command --with-mysql
--with-gnutls --enable-extra-opts
#make
#make install
7.此时完成初步安装，可以监控查看本机的一些服务，检测配置文件并启动nagios
#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Nagios Core 3.5.1
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-30-2013
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 directory '/usr/local/nagios/etc/servers'...
Processing object config file '/usr/local/nagios/etc/servers/localhost.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 6 services.
Checking hosts...
Checked 1 hosts.
Checking host groups...
Checked 0 host groups.
Checking service groups...
Checked 0 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 25 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
Things look okay - No serious problems were detected during the pre-flight check
出现此处，表明，配置文件没有错误，可以启动nagios和apache
#service nagios start
#/usr/local/apache/sbin/apchectl
访问nagios
http://192.168.6.6/nagios/
此时提示页面无法访问，原因在于由于Apache是源码包安装，默认路径和rpm包不一样，需要在Apache的httpd.conf配置文件中添加指定访问路径
8. 配置apache并加载nagios登录页面
找到apache 的配置文件/usr/local/apache/conf/httpd.conf
找到：
User daemon
Group daemon 修改为
User nagios
Group nagios
为了安全起见，一般情况下要让nagios 的web 监控页面必须经过授权才能访问，这需要增加验证配置，即在httpd.conf 文件最后添加如下信息：
下面信息在编译nagios(make install-webconf )时就已经生成，配置信息在：/etc/httpd/confd.d/nagios.conf 文件中
#######################################################################
#setting for nagios
ScriptAlias /nagios/cgi-bin "/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
Alias /nagios "/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
###########################################################################
9.重启nagios、apache并访问nagios
#service nagios restart
#/usr/local/apache/bin/apachectl restart
http://192.168.6.6/nagions
提示输入用户名密码，访问成功
但是登陆进去后，nagios页面右侧全部乱码
解决方法：
主要是apache没有开启cgi脚本的缘故
进入apache的主配置文件httpd.conf
#vim /usr/local/apache/conf/httpd.conf
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule actions_module modules/mod_actions.so
将上面2行的#去掉，重启apache就OK
再次访问 ，乱码消失OK！
(二）配置Nagios
1.nagios配置目录信息
# cd /usr/local/nagios/etc/
# ls
cgi.cfg htpasswd.user nagios.cfg objects resource.cfg
[root@localhost etc]# ll
total 68
-rw-rw-r-- 1 nagios nagios 11669 Nov 29 14:18 cgi.cfg （CGI配置文件）
-rw-r--r-- 1 root root 50 Nov 29 14:20 htpasswd.user （Apache的验证密码文件）
-rw-rw-r-- 1 nagios nagios 44710 Nov 29 14:18 nagios.cfg （主配置文件）
drwxrwxr-x 2 nagios nagios 4096 Nov 29 14:18 objects （对象定义文件目录）
-rw-rw---- 1 nagios nagios 1340 Nov 29 14:18 resource.cfg （资源配置文件）
2.修改nagios.cfg主配置文件
#vim nagios.cfg
注释掉：cfg_file=/usr/local/nagios/etc/objects/localhost.cfg ———— #cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
将 #cfg_dir=/usr/local/nagios/etc/servers 的 #（注释）去掉 ----- cfg_dir=/usr/local/nagios/etc/servers
在/usr/local/nagios/etc/目录中新建 servers子目录，在里面可以直接添加主机配置文件
#mkdir servers
3.配置object目录中的配置文件
#cd objects/
#ll
total 48
-rw-rw-r-- 1 nagios nagios 7716 Nov 29 14:18 commands.cfg （命令定义文件）
-rw-rw-r-- 1 nagios nagios 2166 Nov 29 14:18 contacts.cfg （联系人信息定义文件）
-rw-rw-r-- 1 nagios nagios 5403 Nov 29 14:18 localhost.cfg
-rw-rw-r-- 1 nagios nagios 3124 Nov 29 14:18 printer.cfg
-rw-rw-r-- 1 nagios nagios 3293 Nov 29 14:18 switch.cfg
-rw-rw-r-- 1 nagios nagios 10812 Nov 29 14:18 templates.cfg
-rw-rw-r-- 1 nagios nagios 3208 Nov 29 14:18 timeperiods.cfg （时间周期定义文件）
-rw-rw-r-- 1 nagios nagios 4019 Nov 29 14:18 windows.cfg
配置联系人信息(邮件接收者邮箱地址）
联系人定义：
#vim contacts.cfg
将 email 字段后边的 nagios@localhost 改成自己的邮箱，将报警信息发送的此邮箱，比如 15566058@139.com
如果是设置提醒多个邮箱可以在后跟其它邮箱地址，以逗号隔开，比如： 15566058@139.com,abc@163.com
保存，退出。
（三）nrpe安装配置
1.安装nrpe
#tar zxvf nrpe-2.12.tar.gz
#cd nrpe-1.12
# ./configure && make all
#make install-plugin
#make install-daemon
#make install-daemon-config
#make install-xinetd
2.配置nrpe
#vim /etc/xinetd.d/nrpe
在only_from=127.0.0.1 后添加 192.168.6.6 以空格隔开
3.添加端口
#vim /etc/services 在最后添加 nrpe 5666/tcp #nrpe
修改配置文件/usr/local/nagios/etc/objects/commands.cfg加入对nrpe的支持
#vim /usr/local/nagios/etc/objects/commands.cfg 在末尾添加如下内容
##############################################################################
#nrpe set
define command{
command_name check_nrpe
command_line /usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
##############################################################################
4.配置/usr/local/nagios/etc/nrpe.cfg 文件
#cd /usr/local/nagios/etc/nrpe.cfg
#vim nrpe.cfg
将command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1 中的hda1改为: sda 如下：
command[check_sda]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda
将command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 改为：
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 400 -c 450
添加 command[check_swap]=/usr/local/nagios/libexec/check_swap -w 90% -c 80%
保存，退出。
重启xinetd服务
OK，Nagios服务端安装成功！！！
（四）Nagios客户端安装配置
#yum install -y openssl openssl-devel
#useradd -s /sbin/nlogin nagios
2.安装nagios-plugin
# cd /opt/software/
#tar zxvf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugin-1.4.16
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --enable-libtap
--enable-redhat-pthread-workaround --with-apt-get-command --with-ping6-command --with-ping-command
--with-mysql --with-gnutls --enable-extra-opts --with-openssl --with-trusted-path
#make
#make install
3.安装配置nrpe
#yum install xinetd -y
#tar zxvf nrpe-2.12.tar.gz
#cd nrpe-2.12
#./configure && make all
#make install-plugin
#make install-daemon
#make install-daemon-config
#make install-xinetd
#vim /etc/xinetd.d/nrpe
在only_from = 127.0.0.1 后添加 nagios服务器端IP地址 192.168.6.6 如下：
only_from = 127.0.0.1 192.168.6.6
#vim /etc/services
在文件末尾添加 nrpe 5666/tcp #nrpe
修改/usr/local/nagios/etc/nrpe.cfg
#cp -p /usr/local/nagios/etc/nrpe.cfg /usr/local/nagios/etc/nrpe.cfg.default -修改前先备份一下该配置文件
#vim /usr/local/nagios/etc/nrpe.cfg
将nrpe.cfg文件中的 hda1 字符全部修改为 sda
或者使用sed命令批量修改，如下：
sed -i 's/hda1/sda/g' /usr/local/nagios/etc/nrpe.cfg
添加swep分区监控： command[check_swap]=/usr/local/nagios/libexec/check_swap -w 90% -c 80%
保存，退出。
重启xinetd服务 ：
#service xinetd restart
（五） 在服务端/usr/local/nagios/etc/servers/目录中添加编辑被监控主机配置文件
1.本地主机配置文件模版
#cd /usr/local/nagios/etc/servers
#touch localhost.cfg 注：localhost.cfg 为本地主机配置文件
#vim localhost.cfg 添加如下模版内容
##########################################################################################
#define host
define host{
host_name 192.168.6.6-nagios server #主机名称，可随便定义
alias nagios Server #服务器别名，监控端为Server 被监控端为 Client
address 192.168.6.6 #服务器端IP地址 或者被监控端IP地址
check_command check-host-alive #检查的命令
check_interval 1
#retry_interval 1
max_check_attempts 1
check_period 24x7 #检查的时间范围
process_perf_data 0
retain_nonstatus_information 0
contact_groups admins #联系人组
notification_interval 10 #检查时间间隔，单位为分钟
notification_period 24x7
notification_options d,u,r #通知选项，d-宕机(down) w-报警(warning) u-未知（unkown) c-严重（critical) r-从异常情况恢复
}
#define services
#define check-host-alive
define service {
host_name 192.168.6.6-nagios server
service_description check-host-alive
check_period 24x7
max_check_attempts 1
normal_check_interval 1
#retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name 192.168.6.6-nagios server
service_description check-users
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_users
}
define service {
host_name 192.168.6.6-nagios server
service_description check-load
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_load
}
define service {
host_name 192.168.6.6-nagios server
service_description check-total-procs
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_total_procs
}
define service {
host_name 192.168.6.6-nagios server
service_description check_sda
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_sda
}
define service {
host_name 192.168.6.6-nagios server
service_description check_swap
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_swap
}
########################################################################################
2.其它主机配置文件模版
#cd /usr/local/nagios/etc/servers/
#touch 192.168.2.33.cfg
#vim 192.168.2.33.cfg 添加如下内容
##################################################################################
#define host
define host{
host_name 192.168.2.33-Test
alias nagios Client
address 192.168.2.33
check_command check-host-alive
check_interval 1
#retry_interval 1
max_check_attempts 1
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options d,u,r
}
#define check-host-alive
define service {
host_name 192.168.2.33-Test
service_description check-host-alive
check_period 24x7
max_check_attempts 1
normal_check_interval 1
#retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name 192.168.2.33-Test
service_description check-users
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_users
}
define service {
host_name 192.168.2.33-Test
service_description check-load
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_load
}
define service {
host_name 192.168.2.33-Test
service_description check-total-procs
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_total_procs
}
define service {
host_name 192.168.2.33-Test
service_description check_sda
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_sda
}
define service {
host_name 192.168.2.33-Test
service_description check_swap
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_swap
}
##############################################################################################
3.监控服务器监控运行的端口
（1）Nagios客户端配置
#vim /usr/local/nagios/etc/nrpe.cfg 文件末尾添加定义端口信息，如下：
command[check_TemplateUpload:8080]=/usr/local/nagios/libexec/check_tcp -H localhost -p 8080 -w 120 -c 180
保存，退出
重启xinetd服务
#service xinetd restart
（2）Nagios服务端配置
#vim /usr/local/nagios/etc/services/192.168.2.33.cfg 文件末尾添加如下内容
define service {
host_name 192.168.2.33-Test
service_description check_TemplateUpload:8080
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_TemplateUpload:8080
}
保存，退出
重启nagios服务
#service nagios restart
访问Nagios服务
http://192.168.6.6/nagios
大功告成！！！！！
#/usr/local/apache/sbin/apchectl
访问nagios
http://192.168.6.6/nagios/
(一）安装Nagios （Nagios服务器为：192.168.6.6 Nagios客户端为： 192.168.2.33）
1.基础支持套件：gcc glibc glibc-common gd gd-devel xinetd openssl-devel httpd php 注：php和httpd均用源码包安装，安装配置方法此处不在详述
# yum install -y gcc glibc glibc-common gd gd-devel xinetd openssl-devel
2.创建Nagios账户和组
#useradd -m nagios
#groupadd nagcmd
#usermod -a -G nagcmd nagios
#usermod -a -G nagcmd apache
3.编译安装
#tar xvf nagios-3.5.1.tar.gz
#cd nagios-3.5.1
#./configure prefix=/usr/local/nagios --with-command-group=nagcmd --with-nagios-user=nagios --with-nagios-group=nagios
#make all
#make install
#make install-init （生成init启动脚本）
#make install-config （生成一些模板配置文件）
#make install-commandmode （设置相应的权限）
#make install-webconf （生成Apache配置文件nagios.conf）
4.为Nagios设置Web验证的密码
#/usr/local/apache/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.user nagiosadmin
5.设置Nagios的开机启动
chkconfig --add nagios
chkconfig nagios on
6.安装Nagios的插件nagios-plugin
#tar zxvf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugins-1.4.16
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
--with-apt-get-command --with-ping6-command --with-ping-command --with-mysql
--with-gnutls --enable-extra-opts
#make
#make install
7.此时完成初步安装，可以监控查看本机的一些服务，检测配置文件并启动nagios
#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Nagios Core 3.5.1
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-30-2013
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 directory '/usr/local/nagios/etc/servers'...
Processing object config file '/usr/local/nagios/etc/servers/localhost.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 6 services.
Checking hosts...
Checked 1 hosts.
Checking host groups...
Checked 0 host groups.
Checking service groups...
Checked 0 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 25 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
Things look okay - No serious problems were detected during the pre-flight check
出现此处，表明，配置文件没有错误，可以启动nagios和apache
#service nagios start
#/usr/local/apache/sbin/apchectl
访问nagios
http://192.168.6.6/nagios/
此时提示页面无法访问，原因在于由于Apache是源码包安装，默认路径和rpm包不一样，需要在Apache的httpd.conf配置文件中添加指定访问路径
8. 配置apache并加载nagios登录页面
找到apache 的配置文件/usr/local/apache/conf/httpd.conf
找到：
User daemon
Group daemon 修改为
User nagios
Group nagios
为了安全起见，一般情况下要让nagios 的web 监控页面必须经过授权才能访问，这需要增加验证配置，即在httpd.conf 文件最后添加如下信息：
下面信息在编译nagios(make install-webconf )时就已经生成，配置信息在：/etc/httpd/confd.d/nagios.conf 文件中
#######################################################################
#setting for nagios
ScriptAlias /nagios/cgi-bin "/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
Alias /nagios "/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
###########################################################################
9.重启nagios、apache并访问nagios
#service nagios restart
#/usr/local/apache/bin/apachectl restart
http://192.168.6.6/nagions
提示输入用户名密码，访问成功
但是登陆进去后，nagios页面右侧全部乱码
解决方法：
主要是apache没有开启cgi脚本的缘故
进入apache的主配置文件httpd.conf
#vim /usr/local/apache/conf/httpd.conf
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule actions_module modules/mod_actions.so
将上面2行的#去掉，重启apache就OK
再次访问 ，乱码消失OK！
(二）配置Nagios
1.nagios配置目录信息
# cd /usr/local/nagios/etc/
# ls
cgi.cfg htpasswd.user nagios.cfg objects resource.cfg
[root@localhost etc]# ll
total 68
-rw-rw-r-- 1 nagios nagios 11669 Nov 29 14:18 cgi.cfg （CGI配置文件）
-rw-r--r-- 1 root root 50 Nov 29 14:20 htpasswd.user （Apache的验证密码文件）
-rw-rw-r-- 1 nagios nagios 44710 Nov 29 14:18 nagios.cfg （主配置文件）
drwxrwxr-x 2 nagios nagios 4096 Nov 29 14:18 objects （对象定义文件目录）
-rw-rw---- 1 nagios nagios 1340 Nov 29 14:18 resource.cfg （资源配置文件）
2.修改nagios.cfg主配置文件
#vim nagios.cfg
注释掉：cfg_file=/usr/local/nagios/etc/objects/localhost.cfg ———— #cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
将 #cfg_dir=/usr/local/nagios/etc/servers 的 #（注释）去掉 ----- cfg_dir=/usr/local/nagios/etc/servers
在/usr/local/nagios/etc/目录中新建 servers子目录，在里面可以直接添加主机配置文件
#mkdir servers
3.配置object目录中的配置文件
#cd objects/
#ll
total 48
-rw-rw-r-- 1 nagios nagios 7716 Nov 29 14:18 commands.cfg （命令定义文件）
-rw-rw-r-- 1 nagios nagios 2166 Nov 29 14:18 contacts.cfg （联系人信息定义文件）
-rw-rw-r-- 1 nagios nagios 5403 Nov 29 14:18 localhost.cfg
-rw-rw-r-- 1 nagios nagios 3124 Nov 29 14:18 printer.cfg
-rw-rw-r-- 1 nagios nagios 3293 Nov 29 14:18 switch.cfg
-rw-rw-r-- 1 nagios nagios 10812 Nov 29 14:18 templates.cfg
-rw-rw-r-- 1 nagios nagios 3208 Nov 29 14:18 timeperiods.cfg （时间周期定义文件）
-rw-rw-r-- 1 nagios nagios 4019 Nov 29 14:18 windows.cfg
配置联系人信息(邮件接收者邮箱地址）
联系人定义：
#vim contacts.cfg
将 email 字段后边的 nagios@localhost 改成自己的邮箱，将报警信息发送的此邮箱，比如 15566058@139.com
如果是设置提醒多个邮箱可以在后跟其它邮箱地址，以逗号隔开，比如： 15566058@139.com,abc@163.com
保存，退出。
（三）nrpe安装配置
1.安装nrpe
#tar zxvf nrpe-2.12.tar.gz
#cd nrpe-1.12
# ./configure && make all
#make install-plugin
#make install-daemon
#make install-daemon-config
#make install-xinetd
2.配置nrpe
#vim /etc/xinetd.d/nrpe
在only_from=127.0.0.1 后添加 192.168.6.6 以空格隔开
3.添加端口
#vim /etc/services 在最后添加 nrpe 5666/tcp #nrpe
修改配置文件/usr/local/nagios/etc/objects/commands.cfg加入对nrpe的支持
#vim /usr/local/nagios/etc/objects/commands.cfg 在末尾添加如下内容
##############################################################################
#nrpe set
define command{
command_name check_nrpe
command_line /usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
##############################################################################
4.配置/usr/local/nagios/etc/nrpe.cfg 文件
#cd /usr/local/nagios/etc/nrpe.cfg
#vim nrpe.cfg
将command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1 中的hda1改为: sda 如下：
command[check_sda]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda
将command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 改为：
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 400 -c 450
添加 command[check_swap]=/usr/local/nagios/libexec/check_swap -w 90% -c 80%
保存，退出。
重启xinetd服务
OK，Nagios服务端安装成功！！！
（四）Nagios客户端安装配置
#yum install -y openssl openssl-devel
#useradd -s /sbin/nlogin nagios
2.安装nagios-plugin
# cd /opt/software/
#tar zxvf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugin-1.4.16
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --enable-libtap
--enable-redhat-pthread-workaround --with-apt-get-command --with-ping6-command --with-ping-command
--with-mysql --with-gnutls --enable-extra-opts --with-openssl --with-trusted-path
#make
#make install
3.安装配置nrpe
#yum install xinetd -y
#tar zxvf nrpe-2.12.tar.gz
#cd nrpe-2.12
#./configure && make all
#make install-plugin
#make install-daemon
#make install-daemon-config
#make install-xinetd
#vim /etc/xinetd.d/nrpe
在only_from = 127.0.0.1 后添加 nagios服务器端IP地址 192.168.6.6 如下：
only_from = 127.0.0.1 192.168.6.6
#vim /etc/services
在文件末尾添加 nrpe 5666/tcp #nrpe
修改/usr/local/nagios/etc/nrpe.cfg
#cp -p /usr/local/nagios/etc/nrpe.cfg /usr/local/nagios/etc/nrpe.cfg.default -修改前先备份一下该配置文件
#vim /usr/local/nagios/etc/nrpe.cfg
将nrpe.cfg文件中的 hda1 字符全部修改为 sda
或者使用sed命令批量修改，如下：
sed -i 's/hda1/sda/g' /usr/local/nagios/etc/nrpe.cfg
添加swep分区监控： command[check_swap]=/usr/local/nagios/libexec/check_swap -w 90% -c 80%
保存，退出。
重启xinetd服务 ：
#service xinetd restart
（五） 在服务端/usr/local/nagios/etc/servers/目录中添加编辑被监控主机配置文件
1.本地主机配置文件模版
#cd /usr/local/nagios/etc/servers
#touch localhost.cfg 注：localhost.cfg 为本地主机配置文件
#vim localhost.cfg 添加如下模版内容
##########################################################################################
#define host
define host{
host_name 192.168.6.6-nagios server #主机名称，可随便定义
alias nagios Server #服务器别名，监控端为Server 被监控端为 Client
address 192.168.6.6 #服务器端IP地址 或者被监控端IP地址
check_command check-host-alive #检查的命令
check_interval 1
#retry_interval 1
max_check_attempts 1
check_period 24x7 #检查的时间范围
process_perf_data 0
retain_nonstatus_information 0
contact_groups admins #联系人组
notification_interval 10 #检查时间间隔，单位为分钟
notification_period 24x7
notification_options d,u,r #通知选项，d-宕机(down) w-报警(warning) u-未知（unkown) c-严重（critical) r-从异常情况恢复
}
#define services
#define check-host-alive
define service {
host_name 192.168.6.6-nagios server
service_description check-host-alive
check_period 24x7
max_check_attempts 1
normal_check_interval 1
#retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name 192.168.6.6-nagios server
service_description check-users
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_users
}
define service {
host_name 192.168.6.6-nagios server
service_description check-load
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_load
}
define service {
host_name 192.168.6.6-nagios server
service_description check-total-procs
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_total_procs
}
define service {
host_name 192.168.6.6-nagios server
service_description check_sda
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_sda
}
define service {
host_name 192.168.6.6-nagios server
service_description check_swap
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_swap
}
########################################################################################
2.其它主机配置文件模版
#cd /usr/local/nagios/etc/servers/
#touch 192.168.2.33.cfg
#vim 192.168.2.33.cfg 添加如下内容
##################################################################################
#define host
define host{
host_name 192.168.2.33-Test
alias nagios Client
address 192.168.2.33
check_command check-host-alive
check_interval 1
#retry_interval 1
max_check_attempts 1
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options d,u,r
}
#define check-host-alive
define service {
host_name 192.168.2.33-Test
service_description check-host-alive
check_period 24x7
max_check_attempts 1
normal_check_interval 1
#retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name 192.168.2.33-Test
service_description check-users
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_users
}
define service {
host_name 192.168.2.33-Test
service_description check-load
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_load
}
define service {
host_name 192.168.2.33-Test
service_description check-total-procs
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_total_procs
}
define service {
host_name 192.168.2.33-Test
service_description check_sda
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_sda
}
define service {
host_name 192.168.2.33-Test
service_description check_swap
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_swap
}
##############################################################################################
3.监控服务器监控运行的端口
（1）Nagios客户端配置
#vim /usr/local/nagios/etc/nrpe.cfg 文件末尾添加定义端口信息，如下：
command[check_TemplateUpload:8080]=/usr/local/nagios/libexec/check_tcp -H localhost -p 8080 -w 120 -c 180
保存，退出
重启xinetd服务
#service xinetd restart
（2）Nagios服务端配置
#vim /usr/local/nagios/etc/services/192.168.2.33.cfg 文件末尾添加如下内容
define service {
host_name 192.168.2.33-Test
service_description check_TemplateUpload:8080
check_period 24x7
max_check_attempts 4
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check_nrpe!check_TemplateUpload:8080
}
保存，退出
重启nagios服务
#service nagios restart
访问Nagios服务
http://192.168.6.6/nagios
大功告成！！！！！
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