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/libexec2.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 restart3.查看服务器是否起来了
netstat -ant |grep 5666tcp 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 v2.124.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-plugin2.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 v2.123.创建一个check_nrpe 监控配制文件
vim /usr/local/nagios/etc/commands.cfgdefine 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.fgcfg_dir=/usr/local/nagios/etc/monitor5.创建 主机 服务 主机组 联系人组
cd /usr/local/nagios/etc/monitora.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.Cfgdefine hostgroup {
hostgroup_name sa-servers
alias sa servers
members web,mysql
}d.创建联系人组
vim contactgroup.cfgdefine 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