nagios 的配置总结
所有都是yum安装：[*] # vim /etc/nagios/nagios.cfg
添加主机配置文件到主配置文件
cfg_file=/etc/nagios/objects/localhost.cfg
cfg_file=/etc/nagios/objects/172.16.1.1.cfg
2.# vim /etc/nagios/objects/commands.cfg
添加 check_nrpe 命令到 commands.cfg
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
3. 主机配置模版：
# cat172.16.10.134.cfg
define host{
use linux-server
host_name 172.16.1.1
alias 172.16.1.1
address 172.16.1.1
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_ping
check_command check_ping!100.0,20%!200.0,50%
max_check_attempts 5
normal_check_interval 1
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_ssh
check_command check_ssh
max_check_attempts 5
normal_check_interval 1
notification_interval 60
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_http
check_command check_http
max_check_attempts 5
normal_check_interval 1
notification_interval 60
}
define service{
use generic-service
host_name 172.16.1.1
service_description Root Partition
check_command check_local_disk!20%!10%!/
}
define service{
use generic-service
host_name 172.16.1.1
service_description Current Users
check_command check_local_users!20!50
}
define service{
use generic-service
host_name 172.16.1.1
service_description Total Processes
check_command check_local_procs!450!500!RSZDT
}
define service{
use generic-service
host_name 172.16.1.1
service_description Current Load
check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
}
define service{
use generic-service
host_name 172.16.1.1
service_description Swap Usage
check_command check_local_swap!20!10
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_load
check_command check_nrpe!check_load
max_check_attempts 5
normal_check_interval 1
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_disk_opt
check_command check_nrpe!check_opt
max_check_attempts 5
normal_check_interval 1
}
define service{
use generic-service
host_name 172.16.1.1
service_description port 145
check_command check_tcp!145
}
define service{
use generic-service
host_name 172.16.1.1
service_description port 110
check_command check_tcp!110
}
define service{
use generic-service
host_name 172.16.1.1
service_description port 106
check_command check_tcp!106
}
define service{
use generic-service
host_name 172.16.1.1
service_description port 107
check_command check_tcp!107
}
define service{
use generic-service
host_name 172.16.1.1
service_description check_mem
check_command check_nrpe!check_mem
max_check_attempts 5
normal_check_interval 1
}
#
客户端：
# vim /etc/nagios/nrpe.cfg
command=/usr/lib64/nagios/plugins/check_users -w 5 -c 10
command=/usr/lib64/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
command=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
command=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/mapper/all--data-data01
command=/usr/lib64/nagios/plugins/check_procs -w 5 -c 10 -s Z
command=/usr/lib64/nagios/plugins/check_procs -w 150 -c 200
command=/usr/lib64/nagios/plugins/check_mem.sh -w 150 -c 100
# cat /usr/lib64/nagios/plugins/check_mem.sh
#!/bin/bash
TOTAL=`free -m | head -2 |tail -1 |gawk '{print $2}'`
# Free memory
FREE=`free -m | head -2 |tail -1 |gawk '{print $4}'`
# to calculate free percent
# use the expressionfree * 100 / total
FREETMP=`expr $FREE \* 100`
PERCENT=`expr $FREETMP / $TOTAL`
echo "$FREE MB ($PERCENT%) Free Memory"
exit 0
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