Nagios备忘之基本配置

ゞ浴缸里的玫瑰 2022-05-15 08:57 262阅读 0赞

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\# **ls /usr/loca/nagios**

cgi.cfg -->cgi配置文件  
htpasswd.users -->Apache验证密码文件  
nagios.cfg -->nagios主配置文件  
objects -->监控对象，定义文件目录  
resource.cfg -->nagios资源配置文件  
  
\# **grep '^cfg\_file' /usr/local/nagios/etc/nagios.cfg**   
cfg\_file=/usr/local/nagios/etc/objects/commands.cfg  
//监控脚本配置文件  
cfg\_file=/usr/local/nagios/etc/objects/contacts.cfg  
//联系人/组配置文件  
cfg\_file=/usr/local/nagios/etc/objects/timeperiods.cfg  
//监控时段配置文件  
cfg\_file=/usr/local/nagios/etc/objects/templates.cfg  
//监视服务，报警配置  
cfg\_file=/usr/local/nagios/etc/objects/localhost.cfg  
//本机配置文件  
  
\# **pwd**  
/usr/local/nagios/etc/objects  
\# touch hosts.cfg services.cfg  
\# chown nagios:nagios hosts.cfg services.cfg  
  
\# **vim /usr/local/nagios/etc/nagios.cfg** //添加如下，加入监控主机和服务配置文件  
cfg\_file=/usr/local/nagios/etc/objects/hosts.cfg

cfg\_file=/usr/local/nagios/etc/objects/services.cfg

\# **cat /usr/local/nagios/etc/objects/hosts.cfg** //加入监控主机  
define host \{  
host\_name client1  
address 192.168.1.18  
alias client1  
use linux-server  
\}

**commands.cfg** //加入nrpe

define command\{  
command\_name check\_nrpe  
command\_line $USER1$/check\_nrpe -H $HOSTADDRESS$ -c $ARG1$  
\}

**commands.cfg**  //如果需要加入加快MySQL服务的状态需要自定义命令  
\---------------------------------------------------------------------------------------  
define command\{  
command\_name check\_mysql  
command\_line $USER1$/check\_mysql -H $HOSTADDRESS$ -P 3306 -u nagios -d nagios -p 123  
\}  
\---------------------------------------------------------------------------------------

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**Client：**

需要在MySQL被监控主机赋权：如下

check\_mysql -->加入Nagios的MySQL检测  
  
mysql> **create database nagios;**  
Query OK, 1 row affected (0.02 sec)  
  
mysql> **grant select on nagios.\* to nagios@'%' identified by '123';**  
Query OK, 0 rows affected (0.02 sec)  
  
mysql> **flush privileges;**  
Query OK, 0 rows affected (0.00 sec)  
  
mysql>

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**services.cfg** //一些监控服务的示例  
\---------------------------------------------------------------------------------------  
define service\{  
use local-service  
host\_name client1  
service\_description check\_user  
check\_command check\_nrpe!check\_users  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_load  
check\_command check\_nrpe!check\_load  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_total\_procs  
check\_command check\_nrpe!check\_total\_procs  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_/  
check\_command check\_nrpe!check\_/  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_swap  
check\_command check\_nrpe!check\_swap  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_zombie\_procs  
check\_command check\_nrpe!check\_zombie\_procs  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_http  
check\_command check\_http  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_ssh  
check\_command check\_ssh  
notifications\_enabled 1  
\}  
  
define service\{  
use local-service  
host\_name client1  
service\_description check\_mysql  
check\_command check\_mysql  
notifications\_enabled 1  
\}  
\---------------------------------------------------------------------------------------

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**Client**：

以上服务示例不是所有的命令都有的，有些需要在客户机的nrpe上配置

\# **grep '^command\\\[' /usr/local/nagios/etc/nrpe.cfg**   
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\[check\_/\]=/usr/local/nagios/libexec/check\_disk -w 20% -c 10% -p /dev/sda1  
command\[check\_swap\]=/usr/local/nagios/libexec/check\_disk -w 20% -c 10% -p /dev/sda3  
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  
//不同机器的分区可能不同，所以这里我修改了/和swap的分区的一个监控，系统资源的监控都是通过nrpe去实现的，类似ssh、mysql等服务则无需依靠nrpe

以上是nagios监控基础服务和系统资源的一个配置备忘，之后还会有nagios的timeperiods.cfg、contacts.cfg以及监控主机组和服务组的一个配置

附上一个监控图

![1353569642_3240.png][]

[1353569642_3240.png]: https://img-my.csdn.net/uploads/201211/22/1353569642_3240.png