VPS系列---安装配置nagios客户端、服务端
安装配置nagios 客户端 以及服务端 我先说下我的环境
nagios服务器：192.168.6.103
web服务器：192.168.6.100（nagios客户端）
mysql服务器:192.168.6.101 (nagios客户端)
一．Nagios 监控客户端
1.在客户端安装监控插件
useradd -s /usr/sbin/nologin nagios tar zxvf nagios-plugins-1.4.14.tar.gz cd nagios-plugins-1.4.14 ./configure make make install
设置插件目录权限
chown nagios.nagios /usr/local/nagios chown -R nagios.nagios /usr/local/nagios/libexec
2.安装 nrpe daemon
tar zxvf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all make install-plugin make install-daemon make install-daemon-config
作为 xinetd 服务nrpe守护进程
make install-xinetd
配置 xinetd nrpe 只能由监控服务器监控
vim /etc/xinetd.d/nrpe only_from = 127.0.0.1 <改为nagios服务器IP地址>
添加nrpe守护进程
vim /etc/services
最后加入
nrpe 5666/tcp #NRPE
随后重启 xinetd 服务
/etc/init.d/xinetd restart
3.查看服务器是否起来了
netstat -ant |grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
看到 5666 端口已经开始监听了，说明没问题
测试本地是否可以通信
/usr/local/nagios/libexec/check_nrpe -H localhost NRPE v2.12
4.设置监控服务器内容
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 / 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 250 -c 300 command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20 -c 10
二．在服务端安装nrpe和配置nagios 服务
1.安装nrpe
tar zxvf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all
安装nrpe 插件
make install-plugin
2.测试插件与客户端是否能正常通信
/usr/local/nagios/libexec/check_nrpe -H 192.168.6.101 NRPE v2.12
3.创建一个check_nrpe 监控配制文件
vim /usr/local/nagios/etc/commands.cfg
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
4.修改nagios.cfg 添加一个配制文件
创建存放配置文件目录
mkdir -p /usr/local/nagios/etc/monitor
修改配置文件
vim /usr/local/nagios/etc/nagios.fg
cfg_dir=/usr/local/nagios/etc/monitor
5.创建 主机 服务 主机组 联系人组
cd /usr/local/nagios/etc/monitor
a.创建hosts.Cfg
define host{
use linux-server
host_name web
alias edgora-web
address 192.168.6.100
}
define host{
use linux-server
host_name mysql
alias edgora-mysql
address 192.168.6.102
}
b.创建 services.Cfg
################# edgora web #####################
define service{
use local-service
host_name web
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use local-service
host_name web
service_description SSH
check_command check_ssh!8022
}
define service{
use local-service
host_name web
service_description DISK
check_command check_nrpe!check_hda1
define service{
use local-service
host_name web
service_description Load
check_command check_nrpe!check_load
}
define service{
use local-service
host_name web
service_description SWAP
check_command check_nrpe!check_swap
}
define service{
use local-service
host_name web
service_description User
check_command check_nrpe!check_users
}
define service{
use local-service
host_name web
service_description Zombie_procs
check_command check_nrpe!check_zombie_procs
}
define service{
use local-service
host_name web
service_description total_procs
check_command check_nrpe!check_total_procs
}
################################## MYSQL #######################
define service{
use local-service
host_name mysql
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use local-service
host_name mysql
service_description SSH
check_command check_ssh!8022
}
define service{
use local-service
host_name mysql
service_description DISK
check_command check_nrpe!check_hda1
}
define service{
use local-service
host_name mysql
service_description Load
check_command check_nrpe!check_load
}
define service{
use local-service
host_name mysql
service_description User
check_command check_nrpe!check_users
}
define service{
use local-service
host_name mysql
service_description Zombie_procs
check_command check_nrpe!check_zombie_procs
}
define service{
use local-service
host_name mysql
service_description total_procs
check_command check_nrpe!check_total_procs
}
define service{
use local-service
host_name mysql
service_description SWAP
check_command check_nrpe!check_swap
}
c.创建主机租配制文件
vim hostgroups.Cfg
define hostgroup {
hostgroup_name sa-servers
alias sa servers
members web,mysql
}
d.创建联系人组
vim contactgroup.cfg
define contactgroup {
contactgroup_name sagroup
alias system administrator group
members ludy
}
三． 测试脚本没有问题
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
四． 重启 nagios
/etc/init.d/nagios restart
五． 连接web 测试
http://192.168.6.103/nagios